CN104264781A - Latticed cylindrical surface steel structure latticed shell and construction method thereof - Google Patents
Latticed cylindrical surface steel structure latticed shell and construction method thereof Download PDFInfo
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Abstract
A latticed cylindrical surface steel structure reticulated shell and a construction method thereof are disclosed, the latticed cylindrical surface steel structure reticulated shell is formed by obliquely crossing and sleeving eight oval frameworks, the cross section of the latticed cylindrical surface steel structure reticulated shell is circular and is divided into a front arc surface and a rear arc surface, each oval framework is a closed structure formed by a double-pipe truss and a single-pipe structure frame, the double-pipe truss of the eight oval frameworks is positioned on the front arc surface, and the single-pipe structure frame is positioned on the rear arc surface; according to the invention, the oval framework is split into a plurality of arc-shaped members, construction is carried out by adopting a sectional hoisting mode and a sectional installation mode, the three-point hoisting mode is adopted for hoisting to a specified position, and the adjustment of the spatial position and the rotation angle of the members is carried out by utilizing the adjustment of the steel wire rope and the adjustment of the chain block, so that the accurate butt joint of the member interfaces is realized by multiple guarantee means, and the accurate installation of the plane and height installation positions of the members and the rotation angle of the interfaces is ensured. The method can be widely applied to the construction of large-scale space three-dimensional arc structures.
Description
Technical field
The present invention relates to a kind of building structure and construction method, particularly a kind of irregular building structure and construction method thereof.
Background technology
At present, traditional building structure is more single, and common arcuate structure is plane structure, is mainly arc girder steel.But along with the development of building trade, various building structure produces thereupon, traditional decoration framework can not meet present demand, and the mounting method of planar arc girder steel completes on structural column for direct lifting is fixed on after putting in place, this mode precision is easy to control, operate also fairly simple, but, if there is more complicated structure, such as three dimension arch component this extensive, large-sized also without can the situation of braced structures time, general mounting method is difficult to realize so high installation accuracy, cannot meet this require.
Summary of the invention
The object of this invention is to provide a kind of latticed cylinder Steel Shell and construction method thereof, the installation that solve arc component is accurately difficult to the technical problem ensured; And solve the problem ensureing working security and efficiency of construction.
For achieving the above object, the present invention adopts following technical scheme:
A kind of latticed cylinder Steel Shell, be connected with the agent structure in net shell by braced structures, this latticed cylinder Steel Shell is socketed by eight mutual diagonal cross of oval skeleton, the cross section of this latticed cylinder Steel Shell is circular and is divided into front arc and rear arc, each oval skeleton is the closing structure be configured to by two-tube truss and single tube structure, and the two-tube truss of eight oval skeletons is positioned at front arc, single tube structure chord position in rear arc.
Agent structure in this latticed cylinder Steel Shell comprises Reinforced Concrete Core Walls Structure and steel frame floor structure, and concrete steps are as follows:
Step one, the peripheral position uniform intervals being centered around front arc to be onstructed builds row's pylon, every root pylon is connected with towards the bracing frame of front arc, floor structure or Core Walls Structure connect towards the tripod of rear arc.
Step 2, is divided into multistage arc component by each oval skeleton, adopts 3 lift-on/lift-off systems to lift arc component from bottom to top piecemeal to bracing frame or tripod according to the incline direction of oval skeleton.
Step 3, after lifting two sections of arc components, starts to carry out the connection between arc component.
Step 4, lifts arc component one by one and connects one by one, completes an oval skeleton and installs.
Step 5, according to step 2 to step 4, eight oval skeleton synchronous constructions, until whole installation in position, connect the braced structures of oval skeleton and agent structure.
Step 6, utilizes jack pair eight the oval skeletons be connected on each bracing frame and tripod to carry out overall absolute altitude control and regulation.
Step 7, removes pylon and tripod, the load of eight oval skeletons itself is passed to the braced structures between oval skeleton and agent structure, complete latticed cylinder Steel Shell construction.
In step 2,3 lift-on/lift-off systems of the arc component of each oval skeleton, concrete steps for the lifting of single tube structure frame are as follows: step one, every section of single tube arc component connects three hangers as suspension centre according to the position uniform intervals of left, center, right, is labeled as No. 1 suspension centre, No. 2 suspension centres and No. 3 suspension centres successively; According to the incline direction Piecemeal erection from bottom to top of oval skeleton, except the two ends of first paragraph single tube arc component respectively mark a key point for a bit, except 2, it is a bit that all the other each single tube arc components only at one end mark a key point, and there is a crosshair position line in length and breadth single tube arc component soffit position that is a bit corresponding and two point coordinates; Mid labels outside every section of single tube arc component is 3 points and pastes prismatic lens.
No. 1 hoisting wirerope, No. 2 hoisting wireropes are connected with No. 3 corresponding three suspension centres of hoisting wireropes difference, wherein, No. 1 hoisting wirerope and No. 2 hoisting wireropes are connected to No. 1 jack and No. 2 jacks by step 2;
Step 3, boom hoisting is utilized to start to lift first paragraph single tube arc component, No. 1 jack and No. 2 jacks are utilized to regulate rope capacity, first paragraph single tube arc component is lifted on the tripod of extremely adjacent two floor structures or Core Walls Structure, ensure that the position line of crosshair in length and breadth at the two ends of first paragraph single tube arc component aligns with the position line of crosshair in length and breadth on the support be fixed on tripod respectively, the locus of this support be according to a bit, the coordinate position of 2 determines.
Step 4, a bit, after two point coordinates reach assigned address, No. 2 hoisting wireropes are automatically-unhooked, connect No. 1 and regulate wire rope between No. 2 suspension centres and one of them floor structure or Core Walls Structure, and No. 1 regulates one end of close floor structure or Core Walls Structure on wire rope to be connected with No. 1 adjustment jack.
Step 5, No. 1 levelness regulating wire rope and No. 1 adjustment jack to carry out first paragraph single tube arc component is utilized to regulate adjusting position, in adjustment process with the prismatic lens of 3 for observation benchmark, make three point coordinates reach assigned address, complete the connection of first paragraph single tube arc component.
Step 6, boom hoisting is utilized to start to lift second segment single tube arc component, No. 1 jack and No. 2 jacks are utilized to regulate rope capacity, by the lifting of second segment single tube arc component between first paragraph single tube arc component and the tripod of another one floor structure or Core Walls Structure, ensure that the position line of crosshair in length and breadth of second segment single tube arc component aligns with the position line of crosshair in length and breadth of the support be fixed on tripod, the locus of this support determines according to the coordinate position of a bit.
Step 7, after one point coordinates reaches assigned address, No. 2 wire rope are automatically-unhooked, connect No. 1 and regulate wire rope between No. 2 suspension centres and one of them floor structure or Core Walls Structure, and No. 1 regulates one end of close floor structure or Core Walls Structure on wire rope to be connected with No. 1 adjustment jack.
Step 8, No. 1 levelness regulating wire rope and No. 1 adjustment jack to carry out second segment single tube arc component is utilized to regulate adjusting position, in adjustment process with the prismatic lens of 3 for observation benchmark, three point coordinates are made to reach assigned address, and the connected node of second segment single tube arc component and first paragraph single tube arc component is welded and fixed, complete the connection of second segment single tube arc component.
Step 9, repeats step 6 to step 8, by all the other each section of single tube arc component installation in position.
Single tube structure frame lifting step 4 and step 7 in, No. 1 regulate wire rope before adjustment, with the angle on ground be 60 ° ~ 90 °.
In step 2,3 lift-on/lift-off systems of the arc component of each oval skeleton, the concrete steps lifted for two-tube truss are as follows: step one, every section of Double-tube arc-shaped component connects three hangers as suspension centre according to the position uniform intervals of left, center, right, is labeled as No. 4 suspension centres, No. 5 suspension centres and No. 6 suspension centres successively; According to the incline direction Piecemeal erection from bottom to top of oval skeleton, except the two ends of chord member inside first paragraph Double-tube arc-shaped component respectively mark, a key point is A point, the two ends of B point, outside chord member mark except C point, D point, all the other each Double-tube arc-shaped components only mark same one end mark C point that a key point is A point, outside chord member in chord member one end, inner side, below Double-tube arc-shaped component, the position of corresponding A point, B point, C point and D point coordinates is all connected with a supporting leg, the soffit of supporting leg has crosshair position line in length and breadth; Outside every section of Double-tube arc-shaped component chord member mid labels E point and paste prismatic lens.
No. 4 hoisting wireropes, No. 5 hoisting wireropes are connected with No. 6 corresponding three suspension centres of hoisting wireropes difference, wherein, No. 4 hoisting wireropes and No. 5 hoisting wireropes are connected with No. 4 jacks and No. 5 jacks by step 2.
Step 3, boom hoisting is utilized to start to lift first paragraph Double-tube arc-shaped component, No. 4 jacks and No. 5 jacks are utilized to regulate rope capacity, by first paragraph Double-tube arc-shaped lifting component on the bracing frame of adjacent two pylons, ensure that the position line of crosshair in length and breadth of two supporting legs of first paragraph Double-tube arc-shaped component aligns with the position line of crosshair in length and breadth of the bearing be fixed on bracing frame respectively and is connected with bolt is temporary fixed, the locus of this bearing determines according to the coordinate position of A point, B point, C point and D point.
Step 4, after A point, B point, C point and D point coordinates reach assigned address, No. 5 hoisting wireropes are automatically-unhooked, connect No. 2 and regulate wire rope between No. 5 suspension centres and one of them pylon, and No. 2 regulate the one end near pylon on wire rope to be connected with No. 2 adjustment jacks.
Step 5, No. 2 levelnesss regulating wire rope and No. 2 adjustment jacks to carry out first paragraph Double-tube arc-shaped component are utilized to regulate adjusting position, in adjustment process with the prismatic lens of E point for observation benchmark, E point coordinates is made to reach assigned address, the fastening supporting leg of first paragraph Double-tube arc-shaped component and the bolt of bracing frame bearing, complete the connection of first paragraph Double-tube arc-shaped component.
Step 6, boom hoisting is utilized to start to lift second segment Double-tube arc-shaped component, No. 4 jacks and No. 5 jacks are utilized to regulate rope capacity, by second segment Double-tube arc-shaped lifting component between first paragraph Double-tube arc-shaped component and the bracing frame of another one pylon, ensure that the position line of crosshair in length and breadth of supporting leg of second segment Double-tube arc-shaped component aligns with the position line of crosshair in length and breadth of the bearing be fixed on tripod and is connected with bolt is temporary fixed, the locus of this bearing determines according to the coordinate position of a bit.
Step 7, after one point coordinates reaches assigned address, No. 5 wire rope are automatically-unhooked, connect No. 2 and regulate wire rope between No. 5 suspension centres and one of them floor structure or Core Walls Structure, and No. 2 regulate one end of close floor structure or Core Walls Structure on wire rope to be connected with No. 2 adjustment jacks.
Step 8, No. 2 levelnesss regulating wire rope and No. 2 adjustment jacks to carry out second segment Double-tube arc-shaped component are utilized to regulate adjusting position, in adjustment process with the prismatic lens of E point for observation benchmark, E point coordinates is made to reach assigned address, the bolt of the fastening supporting leg of second segment Double-tube arc-shaped component and the bearing of bracing frame, and the connected node of second segment Double-tube arc-shaped component and first paragraph Double-tube arc-shaped component is welded and fixed, complete the connection of second segment Double-tube arc-shaped component.
Step 9, repeats step 6 to step 8, by place for all the other each section of Double-tube arc-shaped Components installation.
In the step 4 of two-tube truss lifting and step 7, No. 2 regulate wire rope with the angle on ground to be 60 ° ~ 90 ° before adjustment.
Described pylon is made up of four root posts and the connecting rod be connected between column, connects twice linking beam between pylon; There is bracing frame the side of pylon to the front arc level connection joint of net shell.
Support frame as described above comprises the horizontal support bar be connected with pylon two root post, the connecting rod being connected to the diagonal brace between horizontal support bar and column and being connected between horizontal support bar; Every root horizontal support bar is fixed with two bearings.
Described bearing comprises the under(-)chassis that is connected with bracing frame and is connected to the junction plate for connecting with two-tube truss on under(-)chassis, described junction plate has the position line of crosshair in length and breadth of location, is connected with jack between junction plate and under(-)chassis.
Described tripod comprises the horizon bar that is connected with floor structure or Core Walls Structure and is connected to the diagonal brace between horizon bar and floor structure or Core Walls Structure, described horizon bar is fixed with a support, this support comprises the limiting plate of two pieces of parallel spacing single tube structure framves and the location-plate between being connected to bottom limiting plate, described location-plate has crosshair position line in length and breadth.
Compared with prior art the present invention has following characteristics and beneficial effect:
Instant invention overcomes conventional method construction and installation precision be difficult to ensure shortcoming, solve high efficiency, high accuracy complete three dimension arch component construction technical problem.
Oval skeleton is split into some arc components by the present invention, the mode of employing segmental hoisting, Piecemeal erection is constructed, in order to improve the installation accuracy of each section of arc component, adopt 3 mode handlings lifted to assigned address, recycling regulates wire rope and regulates jack to carry out the locus of component and the adjustment of the anglec of rotation, finally fix again after adjusting position, form space three-dimensional structure, multi-ensuring means achieve component interface and accurately dock, and ensure that the installation of the plane of component and the anglec of rotation of installation site highly and its interface is accurate.
The pylon that the present invention adopts and tripod etc. provide temporary support for arc component lifting, simultaneously also for constructor provides reliable operating platform, ensure that construction safety; 3 lift-on/lift-off systems adopted in the present invention achieve the direction controlling to component in hoisting process; Automatically the de-device that hooks simplifies operational sequence, ensure that efficiency of construction; Arranging measuring prism sheet and levelness regulates wire rope can meet the three-dimensional accuracy requirement of Components installation, ensures joint quality.The present invention adds safety guarantee to constructor while the three dimension arch Components installation Accuracy and high efficiency of implementation space, is a kind of safe and reliable, accurate construction method efficiently.
The present invention can be widely used in the construction of extensive space three-dimensional arcuate structure.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is the structural representation of latticed cylinder Steel Shell of the present invention.
Fig. 2 is latticed cylinder Steel Shell front arc pylon distribution schematic diagram of the present invention.
Fig. 3 is latticed cylinder Steel Shell rear arc tripod distribution schematic diagram of the present invention.
Fig. 4 is pylon structure schematic diagram of the present invention.
Fig. 5 is the schematic diagram of two-tube truss lifting step one of the present invention.
Fig. 6 is the schematic diagram of two-tube truss lifting step 3 of the present invention.
Fig. 7 is the schematic diagram of two-tube truss lifting step 4 of the present invention.
Fig. 8 is the schematic diagram of two-tube truss lifting step 7 of the present invention.
Fig. 9 is the schematic diagram of two-tube truss lifting step 9 of the present invention.
Figure 10 is the schematic diagram that two-tube truss of the present invention has lifted.
Figure 11 is the schematic diagram of single tube structure frame of the present invention lifting step one.
Figure 12 is the plan structure schematic diagram of Figure 11.
Figure 13 is the schematic diagram of single tube structure frame of the present invention lifting step 3 lifting.
Figure 14 is the schematic diagram that single tube structure frame of the present invention lifting step 3 is installed.
Figure 15 is the schematic diagram of single tube structure frame of the present invention lifting step 4.
Figure 16 is the schematic diagram of single tube structure frame of the present invention lifting step 7.
Figure 17 is the schematic diagram of single tube structure frame of the present invention lifting step 9.
Figure 18 is the schematic diagram that single tube structure frame of the present invention has lifted.
Reference numeral: 1-pylon, 2-bracing frame, 3-tripod, 4-floor structure or Core Walls Structure, the two-tube truss of 5-, 6-single tube structure frame, 7-braced structures, 8-jack, 9-bearing, 10-support.
Detailed description of the invention
Embodiment is shown in Figure 1, this latticed cylinder Steel Shell, be connected with the agent structure in net shell by braced structures 7, the braced structures that described latticed cylinder Steel Shell is connected with agent structure comprises the umbrella shaped support that the encorbelmenting between top and the roofing of agent structure that be connected to net shell front arc supports, is connected to the bottom support bracket between the bottom of net shell front arc and the annex of agent structure and is connected between the middle part of net shell rear arc and agent structure, and described bottom support bracket is welded on the beam of annex; Agent structure in this latticed cylinder Steel Shell comprises Reinforced Concrete Core Walls Structure and steel frame floor structure, this latticed cylinder Steel Shell is socketed by eight mutual diagonal cross of oval skeleton, the cross section of this latticed cylinder Steel Shell is circular and is divided into front arc and rear arc, each oval skeleton is the closing structure be made up of two-tube truss 5 and single tube structure frame 6, and the two-tube truss of eight oval skeletons is positioned at front arc, single tube structure chord position in rear arc; Eight oval outer keel skeletons are measure-alike, transverse is 121 meters, minor axis is 110 meters, girth is 363 meters, wherein single tube structure frame gross weight about 118 tons, two-tube truss about 300 tons, all circular hollow section diameters of outer keel are 400mm, wall thickness 10mm, and local location circular hollow section diameter is 400mm, wall thickness 20mm.
The construction method of described latticed cylinder Steel Shell, concrete steps are as follows:
Step one, shown in Figure 2, the peripheral position uniform intervals being centered around front arc to be onstructed builds row's pylon 1, every root pylon is connected with towards the bracing frame 2 of front arc, shown in Figure 3, floor structure or Core Walls Structure 4 connect towards the tripod 3 of rear arc.
Step 2, according to the crossover node between oval keel, is divided into multistage arc component by each oval skeleton, adopts 3 lift-on/lift-off systems to lift arc component from bottom to top piecemeal to bracing frame or tripod according to the incline direction of oval skeleton.
Step 3, after lifting two sections of arc components, starts to carry out the connection between arc component.
Step 4, lifts arc component one by one and connects one by one, completes an oval skeleton and installs.
Step 5, according to step 2 to step 4, eight oval skeleton synchronous constructions, the crossover node between oval skeleton is directly fixedly connected with by the mode of welding, until whole installation in position, connects the braced structures of oval skeleton and agent structure.
Step 6, utilizes jack pair eight the oval skeletons be connected on each bracing frame and tripod to carry out overall absolute altitude control and regulation.
Step 7, removes pylon and tripod, the load of eight oval skeletons itself is passed to the braced structures between oval skeleton and agent structure, complete latticed cylinder Steel Shell construction.
Bottom support bracket is connected on annex in advance, oval skeleton is installed afterwards and bottom support bracket is welded and fixed, excessive in order to prevent oval skeleton from sinking, before dismounting pylon and tripod, first some support jacks be can be evenly arranged between oval skeleton and annex, temporary support pylon and tripod removed, off-load support jack subsequently, make it move down, after oval skeleton is separated completely with support jack, namely oval skeleton installs.
In step 2,3 lift-on/lift-off systems of the arc component of each oval skeleton, the concrete steps lifted for two-tube truss are as follows:
Step one, shown in Figure 5, every section of Double-tube arc-shaped component connects three hangers as suspension centre according to the position uniform intervals of left, center, right, is labeled as No. 4 suspension centres, No. 5 suspension centres and No. 6 suspension centres successively; According to the incline direction Piecemeal erection from bottom to top of oval skeleton, except the two ends of chord member inside first paragraph Double-tube arc-shaped component respectively mark, a key point is A point, the two ends of B point, outside chord member mark except C point, D point, all the other each Double-tube arc-shaped components only mark same one end mark C point that a key point is A point, outside chord member in chord member one end, inner side, below Double-tube arc-shaped component, the position of corresponding A point, B point, C point and D point coordinates is all connected with a supporting leg, the soffit of supporting leg has crosshair position line in length and breadth; Outside every section of Double-tube arc-shaped component chord member mid labels E point and paste prismatic lens.
No. 4 hoisting wireropes, No. 5 hoisting wireropes are connected with No. 6 corresponding three suspension centres of hoisting wireropes difference, wherein, No. 4 hoisting wireropes and No. 5 hoisting wireropes are connected with No. 4 jacks and No. 5 jacks by step 2.
Step 3, shown in Figure 6, boom hoisting is utilized to start to lift first paragraph Double-tube arc-shaped component, No. 4 jacks and No. 5 jacks are utilized to regulate rope capacity, by first paragraph Double-tube arc-shaped lifting component on the bracing frame of adjacent two pylons, ensure that the position line of crosshair in length and breadth of two supporting legs of first paragraph Double-tube arc-shaped component aligns with the position line of crosshair in length and breadth of the bearing 9 be fixed on bracing frame respectively and is connected with bolt is temporary fixed, the locus of this bearing determines according to the coordinate position of A point, B point, C point and D point.
Step 4, shown in Figure 7, after A point, B point, C point and D point coordinates reach assigned address, make No. 5 hoisting wireropes automatically-unhooked by automatic decoupling device, between No. 5 suspension centres and one of them pylon, connect No. 2 regulate wire rope, No. 2 regulate the one end near pylon on wire rope to be connected with No. 2 adjustment jacks.
Step 5, No. 2 levelnesss regulating wire rope and No. 2 adjustment jacks to carry out first paragraph Double-tube arc-shaped component are utilized to regulate adjusting position, in adjustment process with the prismatic lens of E point for observation benchmark, E point coordinates is made to reach assigned address, the fastening supporting leg of first paragraph Double-tube arc-shaped component and the bolt of bracing frame bearing, now can remove No. 2 and regulate wire rope and No. 2 adjustment jacks, complete the connection of first paragraph Double-tube arc-shaped component.
Step 6, shown in Figure 8, boom hoisting is utilized to start to lift second segment Double-tube arc-shaped component, No. 4 jacks and No. 5 jacks are utilized to regulate rope capacity, by second segment Double-tube arc-shaped lifting component between first paragraph Double-tube arc-shaped component and the bracing frame of another one pylon, ensure that the position line of crosshair in length and breadth of supporting leg of second segment Double-tube arc-shaped component aligns with the position line of crosshair in length and breadth of the bearing be fixed on tripod and is connected with bolt is temporary fixed, the locus of this bearing determines according to the coordinate position of a bit.
Step 7, after one point coordinates reaches assigned address, make No. 5 wire rope automatically-unhooked by automatic decoupling device, between No. 5 suspension centres and one of them floor structure or Core Walls Structure, connect No. 2 regulate wire rope, No. 2 regulate one end of close floor structure or Core Walls Structure on wire rope to be connected with No. 2 adjustment jacks.
Step 8, No. 2 levelnesss regulating wire rope and No. 2 adjustment jacks to carry out second segment Double-tube arc-shaped component are utilized to regulate adjusting position, in adjustment process with the prismatic lens of E point for observation benchmark, E point coordinates is made to reach assigned address, the bolt of the fastening supporting leg of second segment Double-tube arc-shaped component and the bearing of bracing frame, and the connected node of second segment Double-tube arc-shaped component and first paragraph Double-tube arc-shaped component is welded and fixed, now can remove No. 2 and regulate wire rope and No. 2 adjustment jacks, complete the connection of second segment Double-tube arc-shaped component.
Step 9, shown in Fig. 9, Figure 10, repeats step 6 to step 8, by place for all the other each section of Double-tube arc-shaped Components installation.
In the step 4 of two-tube truss lifting and step 7, No. 2 regulate wire rope with the angle on ground to be 60 ° ~ 90 ° before adjustment.
In step 2,3 lift-on/lift-off systems of the arc component of each oval skeleton, the concrete steps for the lifting of single tube structure frame are as follows:
Step one, shown in Figure 11, Figure 12, every section of single tube arc component connects three hangers as suspension centre according to the position uniform intervals of left, center, right, is labeled as No. 1 suspension centre, No. 2 suspension centres and No. 3 suspension centres successively; According to the incline direction Piecemeal erection from bottom to top of oval skeleton, except the two ends of first paragraph single tube arc component respectively mark a key point for a bit, except 2, it is a bit that all the other each single tube arc components only at one end mark a key point, and there is a crosshair position line in length and breadth single tube arc component soffit position that is a bit corresponding and two point coordinates; Mid labels outside every section of single tube arc component is 3 points and pastes prismatic lens.
No. 1 hoisting wirerope, No. 2 hoisting wireropes are connected with No. 3 corresponding three suspension centres of hoisting wireropes difference, wherein, No. 1 hoisting wirerope and No. 2 hoisting wireropes are connected to No. 1 jack and No. 2 jacks by step 2.
Step 3, shown in Figure 13, Figure 14, boom hoisting is utilized to start to lift first paragraph single tube arc component, No. 1 jack and No. 2 jacks are utilized to regulate rope capacity, first paragraph single tube arc component is lifted on the tripod of extremely adjacent two floor structures or Core Walls Structure, ensure that the position line of crosshair in length and breadth at the two ends of first paragraph single tube arc component aligns with the position line of crosshair in length and breadth on the support 10 be fixed on tripod respectively, the locus of this support be according to a bit, the coordinate position of 2 determines.
Step 4, shown in Figure 15, a bit, after two point coordinates reach assigned address, make No. 2 hoisting wireropes automatically-unhooked by automatic decoupling device, between No. 2 suspension centres and one of them floor structure or Core Walls Structure, connect No. 1 regulate wire rope, No. 1 regulates one end of close floor structure or Core Walls Structure on wire rope to be connected with No. 1 adjustment jack.
Step 5, No. 1 levelness regulating wire rope and No. 1 adjustment jack to carry out first paragraph single tube arc component is utilized to regulate adjusting position, in adjustment process with the prismatic lens of 3 for observation benchmark, three point coordinates are made to reach assigned address, now, No. 1 can be removed and regulate wire rope and No. 1 adjustment jack, complete the connection of first paragraph single tube arc component.
Step 6, shown in Figure 16, boom hoisting is utilized to start to lift second segment single tube arc component, No. 1 jack and No. 2 jacks are utilized to regulate rope capacity, by the lifting of second segment single tube arc component between first paragraph single tube arc component and the tripod of another one floor structure or Core Walls Structure, ensure that the position line of crosshair in length and breadth of second segment single tube arc component aligns with the position line of crosshair in length and breadth of the support be fixed on tripod, the locus of this support determines according to the coordinate position of a bit.
Step 7, after one point coordinates reaches assigned address, make No. 2 wire rope automatically-unhooked by automatic decoupling device, between No. 2 suspension centres and one of them floor structure or Core Walls Structure, connect No. 1 regulate wire rope, No. 1 regulates one end of close floor structure or Core Walls Structure on wire rope to be connected with No. 1 adjustment jack.
Step 8, No. 1 levelness regulating wire rope and No. 1 adjustment jack to carry out second segment single tube arc component is utilized to regulate adjusting position, in adjustment process with the prismatic lens of 3 for observation benchmark, three point coordinates are made to reach assigned address, and the connected node of second segment single tube arc component and first paragraph single tube arc component is welded and fixed, now can remove No. 1 and regulate wire rope and No. 1 adjustment jack, complete the connection of second segment single tube arc component.
Step 9, shown in Figure 17, Figure 18, repeats step 6 to step 8, by all the other each section of single tube arc component installation in position.
Single tube structure frame lifting step 4 and step 7 in, No. 1 regulate wire rope before adjustment, with the angle on ground be 60 ° ~ 90 °.
Shown in Fig. 4, Figure 10, described pylon 1 is made up of four root posts and the connecting rod be connected between column, connects twice linking beam between pylon; There is bracing frame the side of pylon to the front arc level connection joint of net shell; Support frame as described above 2 comprises the horizontal support bar be connected with pylon two root post, the connecting rod being connected to the diagonal brace between horizontal support bar and column and being connected between horizontal support bar; Every root horizontal support bar is fixed with two bearings 9; Described bearing 9 comprises the under(-)chassis that is connected with bracing frame and is connected to the junction plate for connecting with two-tube truss on under(-)chassis, described junction plate there is the position line of crosshair in length and breadth of location, jack 8 is connected with, for regulating the elevation location of oval skeleton in installation process between junction plate and under(-)chassis.
Shown in Figure 14, Figure 18, described tripod comprises the horizon bar that is connected with floor structure or Core Walls Structure and is connected to the diagonal brace between horizon bar and floor structure or Core Walls Structure, described horizon bar is fixed with a support 10, this support 10 comprises the limiting plate of two pieces of parallel spacing single tube structure framves and the location-plate between being connected to bottom limiting plate, described location-plate has crosshair position line in length and breadth.Conveniently constructor operation, can also between tripod connecting pin hand cradle.
Comprise the laying of Controling network, outer keel outer keel change in location monitoring when installing and measuring and unload, concrete grammar is as follows:
In, Controling network is divided into horizontal control network and vertical control network, wherein horizontal control network is on the basis of existing construction control network, according to structural steel design feature and construction characteristic, lay the special Controling network of Construction of Steel Structure, for steel structure assembling, install and use, as the foundation of the control point coordinate of measurement axis, panel point, truss end, simultaneously for steel work deformation monitoring; In addition, vertical control network adopts level gauge to come and go to measure, from outside vertical control point pilot measurement relief to the concrete wall of four Core Walls Structures in assembled place, the absolute altitude in pilot measurement to wherein two Core Walls Structures is ± 0.000m, and pilot measurement is+1.000m to the absolute altitude on two other Core Walls Structure.Multiple coordinate control point is laid in ground on the scene, for the check of place building, adopts Red Triangle region represent and indicate data, then adopts total powerstation to carry out repetition measurement to relief.As the foundation of level measurement in outer keel installation process.
Utilize horizontal control network and vertical control network to carry out precision controlling, its construction error sees table:
Comprise the installation of the installation of oval skeleton and umbrella shaped support:
When oval skeleton is installed, according to bracing frame or tripod position select suitable can the observation platform of intervisibility, suitable control point, adopt the method for resection, according to make the position of top support structure steel plate cross centre line to coordinate, be labeled on top support structure steel plate, during installation, top support structure steel plate and bearing or support cross centre line coincide; Finally, because oval backbone length is very long, in self gravitation situation, pars intermedia branch sinks, influence area lattice structure is installed, therefore, before each joint outer keel lifting, paste a prismatic lens in centre position, adopt " bipolar coordinate method " to measure its installation on ground coordinate, and adopt " space coordinate conversion system " software by each prismatic lens installation on ground calculated by coordinate to spatial design coordinate, in oval skeleton hoisting process, only need monitoring prismatic lens three-dimensional coordinate to complete location like this.Lifting is measured and is adopted several 2 seconds level total powerstations to be placed in ground control point, by the three-dimensional coordinate of " bipolar coordinate method " simultaneous observation prismatic lens.Due to each point three-dimensional coordinate that prestores in total powerstation, the setting out utilizing total powerstation to provide realizes real-time commander constructor and adjusts oval skeleton locus, completes outer keel preferably and installs positioning work.
During the installation of umbrella shaped support, floor structure or Core Walls Structure are released the point of umbrella shaped support and agent structure connecting part, the coordinate of umbrella shaped support and oval skeleton joining is inputted in advance in computer, point of intersection pastes a prismatic lens, according to coordinate point, umbrella shaped support is installed, in installation process, adopts " bipolar coordinate method " to monitor the change of this intersection point equally.
Oval frame position variation monitoring during unloading: weld one before unloading steel ruler near bottom support bracket, record the position readings of the front oval skeleton of unloading, and some support jacks are evenly arranged between oval skeleton and annex, supporting ellipse shape skeleton, then temporary support pylon and tripod is removed, last off-load support jack, observation steel ruler reading, if find that oval skeleton cannot be separated with support jack always, illustrate that excessive being not suitable for of its sedimentation continues unloading, now again support jack should be gone back to origin-location, observe installation and the fixing situation of oval skeleton, when lowering support jack until synchronous, when sinking under oval skeleton in design allowed band, remove support jack subsequently, now, namely oval skeleton installs.
Claims (10)
1. a latticed cylinder Steel Shell, be connected with the agent structure in net shell by braced structures (7), it is characterized in that: this latticed cylinder Steel Shell is socketed by eight mutual diagonal cross of oval skeleton, the cross section of this latticed cylinder Steel Shell is circular and is divided into front arc and rear arc, each oval skeleton is the closing structure be made up of two-tube truss (5) and single tube structure frame (6), the two-tube truss of eight oval skeletons is positioned at front arc, and single tube structure chord position is in rear arc.
2. a construction method for latticed cylinder Steel Shell as claimed in claim 1, is characterized in that, the agent structure in this latticed cylinder Steel Shell comprises Reinforced Concrete Core Walls Structure and steel frame floor structure, and concrete steps are as follows:
Step one, the peripheral position uniform intervals being centered around front arc to be onstructed builds row's pylon (1), every root pylon is connected with towards the bracing frame of front arc (2), above connects towards the tripod (3) of rear arc at floor structure or Core Walls Structure (4);
Step 2, is divided into multistage arc component by each oval skeleton, adopts 3 lift-on/lift-off systems to lift arc component from bottom to top piecemeal to bracing frame or tripod according to the incline direction of oval skeleton;
Step 3, after lifting two sections of arc components, starts to carry out the connection between arc component;
Step 4, lifts arc component one by one and connects one by one, completes each oval skeleton and installs;
Step 5, according to step 2 to step 4, eight oval skeleton synchronous constructions, until whole installation in position, connect the braced structures of oval skeleton and agent structure;
Step 6, utilizes jack pair eight the oval skeletons be connected on each bracing frame to carry out overall absolute altitude control and regulation;
Step 7, removes pylon and tripod, the load of eight oval skeletons itself is passed to the braced structures between oval skeleton and agent structure, complete latticed cylinder Steel Shell construction.
3. the construction method of latticed cylinder Steel Shell according to claim 2, is characterized in that, in step 2, and 3 lift-on/lift-off systems of the arc component of each oval skeleton, the concrete steps for the lifting of single tube structure frame are as follows:
Step one, every section of single tube arc component connects three hangers as suspension centre according to the position uniform intervals of left, center, right, is labeled as No. 1 suspension centre, No. 2 suspension centres and No. 3 suspension centres successively; According to the incline direction Piecemeal erection from bottom to top of oval skeleton, except the two ends of first paragraph single tube arc component respectively mark a key point for a bit, except 2, it is a bit that all the other each single tube arc components only at one end mark a key point, and there is a crosshair position line in length and breadth single tube arc component soffit position that is a bit corresponding and two point coordinates; Mid labels outside every section of single tube arc component is 3 points and pastes prismatic lens;
No. 1 hoisting wirerope, No. 2 hoisting wireropes are connected with No. 3 corresponding three suspension centres of hoisting wireropes difference, wherein, No. 1 hoisting wirerope and No. 2 hoisting wireropes are connected to No. 1 jack and No. 2 jacks by step 2;
Step 3, boom hoisting is utilized to start to lift first paragraph single tube arc component, No. 1 jack and No. 2 jacks are utilized to regulate rope capacity, first paragraph single tube arc component is lifted on the tripod of extremely adjacent two floor structures or Core Walls Structure, ensure that the position line of crosshair in length and breadth at the two ends of first paragraph single tube arc component aligns with the position line of crosshair in length and breadth on the support be fixed on tripod (10) respectively, the locus of this support be according to a bit, the coordinate position of 2 determines;
Step 4, a bit, after two point coordinates reach assigned address, No. 2 hoisting wireropes are automatically-unhooked, connect No. 1 and regulate wire rope between No. 2 suspension centres and one of them floor structure or Core Walls Structure, and No. 1 regulates one end of close floor structure or Core Walls Structure on wire rope to be connected with No. 1 adjustment jack;
Step 5, No. 1 levelness regulating wire rope and No. 1 adjustment jack to carry out first paragraph single tube arc component is utilized to regulate adjusting position, in adjustment process with the prismatic lens of 3 for observation benchmark, make three point coordinates reach assigned address, complete the connection of first paragraph single tube arc component;
Step 6, boom hoisting is utilized to start to lift second segment single tube arc component, No. 1 jack and No. 2 jacks are utilized to regulate rope capacity, by the lifting of second segment single tube arc component between first paragraph single tube arc component and the tripod of another one floor structure or Core Walls Structure, ensure that the position line of crosshair in length and breadth of second segment single tube arc component aligns with the position line of crosshair in length and breadth of the support be fixed on tripod, the locus of this support determines according to the coordinate position of a bit;
Step 7, after one point coordinates reaches assigned address, No. 2 wire rope are automatically-unhooked, connect No. 1 and regulate wire rope between No. 2 suspension centres and one of them floor structure or Core Walls Structure, and No. 1 regulates one end of close floor structure or Core Walls Structure on wire rope to be connected with No. 1 adjustment jack;
Step 8, No. 1 levelness regulating wire rope and No. 1 adjustment jack to carry out second segment single tube arc component is utilized to regulate adjusting position, in adjustment process with the prismatic lens of 3 for observation benchmark, three point coordinates are made to reach assigned address, and the connected node of second segment single tube arc component and first paragraph single tube arc component is welded and fixed, complete the connection of second segment single tube arc component;
Step 9, repeats step 6 to step 8, by all the other each section of single tube arc component installation in position.
4. the construction method of latticed cylinder Steel Shell according to claim 3, is characterized in that: single tube structure frame lifting step 4 and step 7 in, No. 1 regulate wire rope before adjustment, with the angle on ground be 60 ° ~ 90 °.
5. the construction method of latticed cylinder Steel Shell according to claim 2, is characterized in that, in step 2, and 3 lift-on/lift-off systems of the arc component of each oval skeleton, the concrete steps lifted for two-tube truss are as follows:
Step one, every section of Double-tube arc-shaped component connects three hangers as suspension centre according to the position uniform intervals of left, center, right, is labeled as No. 4 suspension centres, No. 5 suspension centres and No. 6 suspension centres successively; According to the incline direction Piecemeal erection from bottom to top of oval skeleton, except the two ends of chord member inside first paragraph Double-tube arc-shaped component respectively mark, a key point is A point, the two ends of B point, outside chord member mark except C point, D point, all the other each Double-tube arc-shaped components only mark same one end mark C point that a key point is A point, outside chord member in chord member one end, inner side, below Double-tube arc-shaped component, the position of corresponding A point, B point, C point and D point coordinates is all connected with a supporting leg, the soffit of supporting leg has crosshair position line in length and breadth; Outside every section of Double-tube arc-shaped component chord member mid labels E point and paste prismatic lens;
No. 4 hoisting wireropes, No. 5 hoisting wireropes are connected with No. 6 corresponding three suspension centres of hoisting wireropes difference, wherein, No. 4 hoisting wireropes and No. 5 hoisting wireropes are connected with No. 4 jacks and No. 5 jacks by step 2;
Step 3, boom hoisting is utilized to start to lift first paragraph Double-tube arc-shaped component, No. 4 jacks and No. 5 jacks are utilized to regulate rope capacity, by first paragraph Double-tube arc-shaped lifting component on the bracing frame of adjacent two pylons, ensure that the position line of crosshair in length and breadth of two supporting legs of first paragraph Double-tube arc-shaped component aligns with the position line of crosshair in length and breadth of the bearing be fixed on bracing frame (9) respectively and is connected with bolt is temporary fixed, the locus of this bearing determines according to the coordinate position of A point, B point, C point and D point;
Step 4, after A point, B point, C point and D point coordinates reach assigned address, No. 5 hoisting wireropes are automatically-unhooked, connect No. 2 and regulate wire rope between No. 5 suspension centres and one of them pylon, and No. 2 regulate the one end near pylon on wire rope to be connected with No. 2 adjustment jacks;
Step 5, No. 2 levelnesss regulating wire rope and No. 2 adjustment jacks to carry out first paragraph Double-tube arc-shaped component are utilized to regulate adjusting position, in adjustment process with the prismatic lens of E point for observation benchmark, E point coordinates is made to reach assigned address, the fastening supporting leg of first paragraph Double-tube arc-shaped component and the bolt of bracing frame bearing, complete the connection of first paragraph Double-tube arc-shaped component;
Step 6, boom hoisting is utilized to start to lift second segment Double-tube arc-shaped component, No. 4 jacks and No. 5 jacks are utilized to regulate rope capacity, by second segment Double-tube arc-shaped lifting component between first paragraph Double-tube arc-shaped component and the bracing frame of another one pylon, ensure that the position line of crosshair in length and breadth of supporting leg of second segment Double-tube arc-shaped component aligns with the position line of crosshair in length and breadth of the bearing be fixed on tripod and is connected with bolt is temporary fixed, the locus of this bearing determines according to the coordinate position of a bit;
Step 7, after one point coordinates reaches assigned address, No. 5 wire rope are automatically-unhooked, connect No. 2 and regulate wire rope between No. 5 suspension centres and one of them floor structure or Core Walls Structure, and No. 2 regulate one end of close floor structure or Core Walls Structure on wire rope to be connected with No. 2 adjustment jacks;
Step 8, No. 2 levelnesss regulating wire rope and No. 2 adjustment jacks to carry out second segment Double-tube arc-shaped component are utilized to regulate adjusting position, in adjustment process with the prismatic lens of E point for observation benchmark, E point coordinates is made to reach assigned address, the bolt of the fastening supporting leg of second segment Double-tube arc-shaped component and the bearing of bracing frame, and the connected node of second segment Double-tube arc-shaped component and first paragraph Double-tube arc-shaped component is welded and fixed, complete the connection of second segment Double-tube arc-shaped component;
Step 9, repeats step 6 to step 8, by place for all the other each section of Double-tube arc-shaped Components installation.
6. the construction method of latticed cylinder Steel Shell according to claim 5, is characterized in that: in the step 4 of two-tube truss lifting and step 7, No. 2 regulate wire rope with the angle on ground to be 60 ° ~ 90 ° before adjustment.
7. the construction method of the latticed cylinder Steel Shell according to claim 2 to 6 any one, is characterized in that: described pylon (1) is made up of four root posts and the connecting rod be connected between column, connects twice linking beam between pylon; There is bracing frame the side of pylon to the front arc level connection joint of net shell.
8. the construction method of latticed cylinder Steel Shell according to claim 7, is characterized in that: support frame as described above (2) comprises the horizontal support bar be connected with pylon two root post, the connecting rod being connected to the diagonal brace between horizontal support bar and column and being connected between horizontal support bar; Every root horizontal support bar is fixed with two bearings (9).
9. the construction method of latticed cylinder Steel Shell according to claim 8, it is characterized in that: described bearing (9) comprises the under(-)chassis that is connected with bracing frame and is connected to the junction plate for connecting with two-tube truss on under(-)chassis, described junction plate there is the position line of crosshair in length and breadth of location, between junction plate and under(-)chassis, be connected with jack (8).
10. the construction method of the latticed cylinder Steel Shell according to claim 2 to 6 any one, it is characterized in that: described tripod (3) comprises the horizon bar that is connected with floor structure or Core Walls Structure and is connected to the diagonal brace between horizon bar and floor structure or Core Walls Structure, described horizon bar is fixed with a support (10), this support (10) comprises the limiting plate of two pieces of parallel spacing single tube structure framves and the location-plate between being connected to bottom limiting plate, described location-plate has crosshair position line in length and breadth.
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