CN116537071A - Hydraulic jacking integral steel frame platform and turnover formwork construction method thereof - Google Patents
Hydraulic jacking integral steel frame platform and turnover formwork construction method thereof Download PDFInfo
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- CN116537071A CN116537071A CN202310654886.0A CN202310654886A CN116537071A CN 116537071 A CN116537071 A CN 116537071A CN 202310654886 A CN202310654886 A CN 202310654886A CN 116537071 A CN116537071 A CN 116537071A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 230000007306 turnover Effects 0.000 title claims abstract description 41
- 238000010276 construction Methods 0.000 title claims abstract description 38
- 238000009415 formwork Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 4
- 238000013519 translation Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 12
- 230000009194 climbing Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009430 construction management Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge construction, in particular to a hydraulic jacking integral steel frame platform and a turnover formwork construction method thereof. According to the hydraulic jacking integral steel frame platform and the turnover formwork construction method thereof, the floor support rod is adopted as a fulcrum, the equal strength requirement on newly poured concrete is low, and the concrete can climb after initial setting, so that the construction period of pier body sections is shortened, and the construction progress is accelerated; the overhead translation mode is adopted to adjust the positions of the jacking and hoisting mechanisms, so that the lifting and hoisting mechanism has wider application range; the combined turnover mould adopting the detachable structural design is convenient for loading and unloading operations, and can also utilize the internal transverse assembly limiting pipe to laterally support and limit the supporting rod, so that the stability of the inside of the supporting rod and the processing of the mould is ensured, and the verticality of the jacking process is ensured.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a hydraulic jacking integral steel frame platform and a turnover formwork construction method thereof.
Background
Bridge piers generally refer to intermediate supporting structures which span bridges and bear the load of the structure, and also bear the running water pressure, wind force above the water surface and possibly the impact action abutment of running water pressure, ships or floats or automobiles, are arranged at two ends of the bridge, and besides supporting the bridge structures, the bridge piers are structures which are connected with road embankments at two sides.
Along with continuous innovation of bridge structural forms, the design height of the bridge pier is also continuously increased, and higher requirements are also put forward on bridge construction technology. The construction of the high pier of the bridge has the characteristics of high construction difficulty and high safety risk. The traditional mature construction process is difficult to meet the comprehensive requirements of the current construction progress and quality, and a plurality of safety risks exist in high pier construction, so that the method is also a problem to be solved in current construction management.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the problems in the background technology, an improved hydraulic jacking integral steel frame platform and a turnover formwork construction method thereof are provided, and the problems that the traditional mature construction process is difficult to meet the comprehensive requirements of the current construction progress and quality and a plurality of safety risks exist in high pier construction are solved.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a hydraulic pressure jack-up integral steelframe platform turns over mould, includes electric block, jack-up frame, lower gallows, horizontal stay, diagonal brace, gyro wheel vaulting pole, jack, supporting rod and lower anti-falling holder, jack-up frame top install the overhead guide rail that is used for assembling electric block, be provided with the top assembly jig by electric block control on the top surface in the jack-up frame, the jack upper end passes through the fixed mounting seat and installs in top assembly jig bottom, jack and lower anti-falling holder pass through the centre gripping and fix in the supporting rod outside, fixed mounting has the square frame that makes things convenient for the operating personnel to construct in the gallows down, the gallows inboard is provided with the combination formula and turns over the mould down, jack-up frame medial surface is located lower anti-falling holder top fixed mounting has built-in supporting beam.
The lower hanging bracket is fixed with a lateral assembly seat for installing a horizontal stay bar, an inclined stay bar and a roller stay bar on the adjacent building surface.
The combined turnover mould comprises a first mould body, a second mould body, a transverse assembly limiting pipe transversely penetrating through the first mould body and the second mould body, and lateral locking seats fixedly arranged on two sides of the transverse assembly limiting pipe.
And a turnover bottom support plate is movably assembled on the inner bottom surface of the square frame adjacent to the combined turnover end.
The transverse assembly limiting pipe comprises a first arc limiting pipe positioned on one side of the supporting rod and a second arc limiting pipe positioned on the other side of the supporting rod, wherein the first arc limiting pipe and the second arc limiting pipe are positioned on the supporting rod and are provided with arc limiting sections of an integral structure, and two ends of the first arc limiting pipe and two ends of the second arc limiting pipe are axially fixed with external thread locking plates matched with the lateral locking seats.
The inner side locking mechanism is installed on the assembly surfaces of the first arc-shaped limiting pipe and the second arc-shaped limiting pipe in a staggered mode.
The side assembly frame is welded and fixed on the outer side surfaces of the first die body and the second die body, and the top ends of the horizontal stay bars and the inclined stay bars are assembled and limited with the side assembly frame through lateral bolts.
The outer side surfaces of the first die body and the second die body are provided with a plurality of side circular assembly through holes matched with the side locking seats.
The overhead winch hoisting equipment for conveniently hoisting the first die body and the second die body is fixedly assembled at the lower end of the top assembly frame.
The construction method of the hydraulic jacking integral steel frame platform comprises the steps of firstly carrying out lofting on the section outline of the pier bottom of the pier body after the construction of a bearing platform is finished, carrying out roughening and flushing on the broken pier body in the range of the pier body, lengthening a main reinforcement, binding the stirrups of the first section of the pier body, and synchronously carrying out structural installation of the steel frame platform and the hydraulic jacking system and the construction of the pier body, wherein the installation steps are carried out in sequence from top to bottom;
the outer template is arranged on the solid section at the bottom of the pier body, and then the lower hanging bracket, the jacking bracket, the jack, the supporting rod and the hydraulic control system are arranged;
after casting of solid sections is finished, a jack with equal strength for a few hours can be started to drive a lower hanging frame and a jacking frame to climb to a proper height, then steel bars with variable sections and combined turnover molds are installed, the bottom plates of the rest layers of inner hanging frames are sequentially stacked on steel orange in a cavity of the variable section of the pier body, and a 2 nd layer hanging frame under the lower hanging frame can be installed at the same time when an inner square frame is installed;
after casting the variable section concrete, the steel frame is jacked up for 2m again in a uniform strength for a few hours, then a hanging frame hanging rod in the-2 th layer is installed, and a hanging frame outside the-3 rd layer is installed;
along with the rising of the segmental casting steel frame, the lower hanging frame of the subsequent bottom layer is installed layer by layer, all wind-resistant and anti-falling supporting rods are installed, and the reasonable gap between the roller and the surface of the pier body is adjusted through the screw rod when the roller supporting rod is installed.
The beneficial effects of the invention are as follows:
(1) According to the hydraulic jacking integral steel frame platform and the turnover formwork construction method thereof, the floor support rod is adopted as a fulcrum, the equal strength requirement on newly poured concrete is low, and the concrete can climb after initial setting, so that the construction period of pier body sections is shortened, and the construction progress is accelerated;
(2) The overhead translation mode is adopted to adjust the positions of the jacking and hoisting mechanisms, so that the lifting and hoisting mechanism has wider application range;
(3) The combined turnover mould with the detachable structural design is convenient to assemble and disassemble, and can also utilize the internal transverse assembly limiting pipe to laterally support and limit the supporting rod, so that the stability of the inside of the supporting rod and the processing of the mould is ensured, and the verticality of the jacking process is ensured;
(4) The built-in supporting cross beam above the falling-preventing clamp holder can improve the protection capability under the falling condition, so that the safety is greatly improved;
(5) The lateral hydraulic control system can ensure the stability and safety of the assembly of the lower hanging bracket and the square frame steel frame;
(6) The formwork turnover process is adopted, the whole construction joint is divided, the grouting stopping effect is good, the formwork is completely separated from the operation platform and is independent, disturbance of other operations on the operation platform before concrete solidification, which is integrally formed by the formwork support of the traditional formwork turnover process, on the concrete is avoided, and the quality of the concrete is better;
(7) The frame platform and the notch locating rack arranged on the lifting frame replace the stiff framework, namely the locating problem of the main reinforcement is better solved as an operation platform for the reinforcement height connection operation, the material and the installation cost of the stiff framework are saved, the steel platform can be designed in a modularized manner, the flexible combination and the repeated use are convenient, and the consumption of auxiliary materials is low.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a partial schematic view of the mounting end of the jack-up stand of the present invention.
Fig. 3 is an internal cross-sectional view of the assembled end of the transverse assembled spacing tube of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The integral steel frame platform turnover mould of hydraulic jacking shown in fig. 1, 2 and 3 comprises an electric hoist 1, a jacking frame 2, a lower hanging frame 3, a horizontal supporting rod 5, an inclined supporting rod 6, a roller supporting rod 7, a jack 8, a supporting rod 9 and a lower anti-falling clamp holder 10, wherein a jacking guide rail 11 for assembling the electric hoist 1 is arranged at the top of the jacking frame 2, a top assembly frame 12 controlled by the electric hoist 1 is arranged on the inner top surface of the jacking frame 2, the upper end of the jack 8 is arranged at the bottom of the top assembly frame 12 through a fixed assembly seat, the jack 8 and the lower anti-falling clamp holder 10 are fixed at the outer side of the supporting rod 9 through clamping, a square frame 4 which is convenient for operators to construct is fixedly assembled in the lower hanging frame 3, a combined turnover mould is arranged at the inner side of the lower hanging frame 3, and a built-in supporting beam 13 is fixedly assembled above the lower anti-falling clamp holder 10 on the inner side of the jacking frame 2.
The electric hoist 1 and the jack 8 are in the prior art, the electric hoist 1 is used for horizontally adjusting the translation of the top assembly frame 12, and the penetrating jack of the jack 8 is clamped on the supporting rod 9 through the wedge clamping piece, so that the load of the steel frame platform is transferred to the supporting rod 9. Because the penetrating jack climbs along the supporting rod 9, the problem of pivot conversion of each cycle of the hydraulic climbing die does not exist. After the concrete pouring is completed and reaches a certain strength, the steel frame platform is driven by the penetrating jack through the jacking frame 2 to climb the height of a construction section along the supporting rod 9.
For the inner side assembly, the lateral assembly seats 14 for installing the horizontal stay bars 5, the diagonal stay bars 6 and the roller stay bars 7 are fixed on the lower hanging bracket 3 adjacent to the building surface.
In order to improve the assembly stability of the die and the supporting rod 9 and ensure uniform gaps, the combined turnover die comprises a first die body 15, a second die body 16, a transverse assembly limiting pipe 17 transversely penetrating through the first die body 15 and the second die body 16, and lateral locking seats 18 fixedly arranged on two sides of the transverse assembly limiting pipe 17.
In order to facilitate close-range construction, a turnover bottom support plate 19 is movably arranged on the inner bottom surface of the square frame 4 adjacent to the combined turnover end.
In order to improve the internal limiting performance, the transverse assembly limiting pipe 17 comprises a first arc limiting pipe 20 positioned on one side of the supporting rod 9 and a second arc limiting pipe 21 positioned on the other side of the supporting rod 9, wherein the first arc limiting pipe 20 and the second arc limiting pipe 21 are positioned on the supporting rod 9 and are respectively provided with an integral arc limiting section 22, and two ends of the first arc limiting pipe 20 and the second arc limiting pipe 21 are respectively axially fixed with an external thread locking plate 23 matched with the lateral locking seat 18.
The first arc limiting pipe 20 and the second arc limiting pipe 21 are sleeved on two sides of the supporting rod 9 through arc limiting sections 22, and then are sleeved on the outer side of the external thread locking plate 23 through internal thread holes on the inner side of the lateral locking seat 18.
The external thread locking plates 23 at the two ends of the first arc-shaped limiting pipe 20 and the second arc-shaped limiting pipe 21 are mutually assembled to form an external thread pipe matched with the lateral locking seat 18.
In order to improve the locking effect of the assembly surface, the assembly surfaces of the first arc-shaped limiting tube 20 and the second arc-shaped limiting tube 21 are provided with an inner locking mechanism 24 in a staggered manner.
The inner locking mechanism 24 includes a locking block and a locking frame fixed on the assembly surfaces of the first arc-shaped limiting tube 20 and the second arc-shaped limiting tube 21.
In order to match with lateral assembly and hoisting, lateral assembly frames 25 are welded and fixed on the outer side surfaces of the first die body 15 and the second die body 16, and the top ends of the horizontal stay bars 5 and the inclined stay bars 6 are assembled and limited with the lateral assembly frames 25 through lateral bolts.
In order to match the lateral assembly limit, a plurality of lateral circular assembly through holes matched with the lateral locking seats 18 are formed in the outer side surfaces of the first die body 15 and the second die body 16.
Not only can the lateral locking seat 18 be mounted by means of a lateral circular mounting through hole, but also the material can be injected from the lateral direction inwards.
For cooperation hoist and mount, need not to resort to external equipment, top assembly frame 12 lower extreme fixed assembly is used for conveniently hoisting first mould body 15, overhead winch hoist device 26 of second mould body 16.
The overhead winch hoisting device 26 is of the prior art, and is composed of a top-mounted winch and a hoisting steel cable wound on the outside of the winch inside the winch, the winch being hoisted by hoisting the bottom of the steel cable by being mounted on the side-mounted assembly frame 25.
The construction method of the hydraulic jacking integral steel frame platform comprises the steps of firstly carrying out lofting on the section outline of the pier bottom of the pier body after the construction of a bearing platform is finished, carrying out roughening and flushing on the broken pier body in the range of the pier body, lengthening a main reinforcement, binding the stirrups of the first section of the pier body, and synchronously carrying out structural installation of the steel frame platform and the hydraulic jacking system and the construction of the pier body, wherein the installation steps are carried out in sequence from top to bottom;
the steel frame platform comprises a jacking frame 2 and a lower hanging frame 3.
The hydraulic jacking system comprises a hydraulically controlled jack 8 and a support rod 9.
The outer template is arranged on the solid section at the bottom of the pier body, and then the lower hanging bracket 3, the jacking frame 2, the jack 8, the supporting rod 9 and the hydraulic control system are arranged;
the hydraulic control system comprises a horizontal stay bar 5, an inclined stay bar 6 and a roller stay bar 7.
After casting of solid sections is finished, a jack with equal strength for a few hours can be started to drive a lower hanging frame and a jacking frame to climb to a proper height, then steel bars with variable sections and combined turnover molds are installed, the bottom plates of the rest layers of inner hanging frames are sequentially stacked on steel orange in a cavity of the variable section of the pier body, and a 2 nd layer hanging frame under the lower hanging frame can be installed at the same time when an inner square frame is installed;
after casting the variable section concrete, the steel frame is jacked up for 2m again in a uniform strength for a few hours, then a hanging frame hanging rod in the-2 th layer is installed, and a hanging frame outside the-3 rd layer is installed;
along with the rising of the segmental casting steel frame, the lower hanging frame 3 of the subsequent bottom layer is installed layer by layer, all wind-resistant and anti-falling supporting rods 9 are installed, and the reasonable gap between the roller and the surface of the pier body is adjusted through the screw rod when the roller supporting rod 7 is installed.
The combined turnover mould adopts a large template of the traditional turnover mould, the template is divided into 2 layers, and the height of each layer is 2-3 m. When the templates are disassembled and assembled, the overhead winch hoisting equipment 26 at the lower end of the top assembly frame 12 is used for hoisting the bottom template to be demolded and lifted to the top surface of the upper template, and then the template surface is cleaned and coated with a release agent and then is in butt joint with the flange on the top surface of the upper template.
The selection and the number and the arrangement of the supporting rods 9 and the jacks 8 are determined according to the load distribution and the structural stress condition. The hydraulic jacking integral steel frame platform turnover mould adopts a steel pipe with the middle length of 76X6 as a supporting rod 9 and is matched with a wedge type jack 8 with the YCW20T-100 type. In order to prevent uneven structural stress caused by accidental slipping of wedge blocks of individual jacks, an anti-falling wedge block clamp is additionally arranged at the bottom of a lower cross beam of the jacking frame 2, and the anti-falling wedge block clamp has the effects of increasing lateral constraint supporting points of the supporting rods 9 and improving the stability of the supporting rods. In order to improve the wind resistance of the jacking frame 2 and the stability of the overall lifting process, the outer upright of the jacking frame 2 extends to the bottom end of the lower hanger 3, and a horizontal wind-resistant roller stay is arranged at the bottom end thereof.
The lifting of the jack 8 is controlled by a hydraulic control console, which is of prior art, comprising: the hydraulic control system comprises an LTK2-32-10B type oil pump, a 3-bit 4-powered reversing valve, a pilot overflow valve, a 2-bit 4-powered reversing valve, a Programmable Logic Controller (PLC), a display screen and the like. The hydraulic lifting synchronous control adopts 2 modes. Synchronous control of each climbing stroke (about 80 mm) for the jack: the hydraulic system adopts parallel oil ways, each climbing jack is provided with a displacement meter, the climbing displacement of the jack is fed back to the PLC by the displacement meter for comparison, when the climbing displacement of the fastest jack exceeds a set value compared with the climbing displacement of the slowest jack, namely, the oil supply of the overrunning jack is cut off through an electromagnetic reversing valve until the displacement is balanced, the oil supply of the overrunning jack is restored until the displacement is balanced, so that the climbing efficiency of the jack is improved, and the stroke synchronous control can divide the lifting stroke of each cycle of the jack into 2 sections with different regulation and control precision, namely, the lifting stroke of the jack is roughly regulated by 50mm before and finely regulated by 30mm after the lifting stroke is regulated by 2 sections with different regulation and control precision. The other is vertical displacement deviation control of 4 angular points of the steel frame: the jacks 8 are grouped according to four corners, vertical displacement deviation values of four corners of the jacking frame in the jacking process are synchronously measured through infrared displacement sensors or stay rope displacement meters arranged at the four corners of the jacking frame and fed back to the PLC, and intermittent oil-breaking control is carried out on the grouped jacks with the overrun displacement, so that the horizontal state of the whole steel frame is controlled.
According to the hydraulic jacking integral steel frame platform and the turnover formwork construction method thereof, the floor support rod 9 is adopted as a fulcrum, the equal strength requirement on newly poured concrete is low, and the concrete can climb after initial setting, so that the construction period of pier body sections is shortened, and the construction progress is accelerated; the overhead translation mode is adopted to adjust the positions of the jacking and hoisting mechanisms, so that the lifting and hoisting mechanism has wider application range; the combined turnover mould with the detachable structural design is convenient for loading and unloading operations, and can also utilize the internal transverse assembly limiting pipe 17 to laterally support and limit the supporting rod 9, so that the stability of the inside of the supporting rod and the processing of the mould is ensured, and the verticality of the jacking process is ensured; the built-in supporting cross beam 13 above the falling-preventing clamp holder 10 can improve the protection capability under the falling condition, so that the safety is greatly improved; the lateral hydraulic control system can be utilized to ensure the stability and safety of the assembly of the lower hanging bracket 3 and the square frame steel frame; the formwork turnover process is adopted, the whole construction joint is divided, the grouting stopping effect is good, the formwork is completely separated from the operation platform and is independent, disturbance of other operations on the operation platform before concrete solidification, which is integrally formed by the formwork support of the traditional formwork turnover process, on the concrete is avoided, and the quality of the concrete is better; the frame platform and the notch locating rack arranged on the lifting frame replace the stiff framework, namely the locating problem of the main reinforcement is better solved as an operation platform for the reinforcement height connection operation, the material and the installation cost of the stiff framework are saved, the steel platform can be designed in a modularized manner, the flexible combination and the repeated use are convenient, and the consumption of auxiliary materials is low.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. The utility model provides a hydraulic jacking integral steelframe platform turns over mould, includes electric block (1), jack-up frame (2), down gallows (3), horizontal stay (5), diagonal brace (6), gyro wheel vaulting pole (7), jack (8), supporting rod (9) and anti-falling holder (10), characterized by down: the lifting frame is characterized in that a top-mounted guide rail (11) for assembling the electric hoist (1) is mounted at the top of the lifting frame (2), a top assembly frame (12) controlled by the electric hoist (1) is arranged on the inner top surface of the lifting frame (2), the upper end of the jack (8) is mounted at the bottom of the top assembly frame (12) through a fixed assembly seat, the jack (8) and the falling-preventing clamp holder (10) are fixed on the outer side of the supporting rod (9) through clamping, a square frame (4) convenient for operators to construct is fixedly mounted in the lower hanging frame (3), a combined turnover die is arranged on the inner side of the lower hanging frame (3), and a built-in supporting beam (13) is fixedly mounted above the falling-preventing clamp holder (10) on the inner side surface of the lifting frame (2).
2. The hydraulic jacking integral steel frame platform turnover formwork of claim 1, wherein: the lower hanging bracket (3) is fixed with a lateral assembly seat (14) adjacent to the building surface, wherein the lateral assembly seat is used for installing the horizontal stay bar (5), the inclined stay bar (6) and the roller stay bar (7).
3. The hydraulic jacking integral steel frame platform turnover formwork of claim 1, wherein: the combined turnover die comprises a first die body (15), a second die body (16), a transverse assembly limiting pipe (17) transversely penetrating through the first die body (15) and the second die body (16), and lateral locking seats (18) fixedly mounted on two sides of the transverse assembly limiting pipe (17).
4. The hydraulic jacking integral steel frame platform turnover formwork of claim 1, wherein: the inner bottom surface of the square frame (4) is movably provided with a turnover type bottom supporting plate (19) close to the combined turnover type mold end.
5. A hydraulic jacking integral steel frame platform turnover formwork as defined in claim 3, wherein: the horizontal assembly limiting pipe (17) comprises a first arc limiting pipe (20) positioned on one side of the supporting rod (9) and a second arc limiting pipe (21) positioned on the other side of the supporting rod (9), the first arc limiting pipe (20) and the second arc limiting pipe (21) are positioned on the supporting rod (9) and are provided with arc limiting sections (22) with integrated structures, and two ends of the first arc limiting pipe (20) and two ends of the second arc limiting pipe (21) are axially fixed with external thread locking plates (23) matched with the lateral locking seats (18).
6. The hydraulic jacking integral steel frame platform turnover formwork of claim 5, wherein: the inner side locking mechanism (24) is installed on the assembly surfaces of the first arc-shaped limiting pipe (20) and the second arc-shaped limiting pipe (21) in a staggered mode.
7. The hydraulic jacking integral steel frame platform turnover formwork of claim 1, wherein: the side-mounted assembly frame (25) is fixedly welded on the outer side surfaces of the first die body (15) and the second die body (16), and the top ends of the horizontal stay bars (5) and the inclined stay bars (6) are limited by being assembled with the side-mounted assembly frame (25) through lateral bolts.
8. A hydraulic jacking integral steel frame platform turnover formwork as defined in claim 3, wherein: the outer side surfaces of the first die body (15) and the second die body (16) are provided with a plurality of side circular assembly through holes matched with the side locking seats (18).
9. The hydraulic jacking integral steel frame platform turnover formwork of claim 1, wherein: the top assembly jig (12) lower extreme fixed mounting is equipped with overhead winch lifting device (26) that are used for conveniently lifting first mould body (15), second mould body (16).
10. A hydraulic jacking integral steel frame platform construction method is characterized in that: firstly lofting the section contour line of the pier bottom of the pier body after the construction of the bearing platform is finished, chiseling and flushing the broken pier body in the range of the pier body, lengthening the main reinforcement, binding the stirrups of the first section of the pier body, and synchronously installing the structure of the steel frame platform and the hydraulic jacking system and the construction of the pier body, wherein the installing steps are carried out in sequence from top to bottom;
the outer template is arranged on the solid section at the bottom of the pier body, and then the lower hanging bracket (3), the jacking frame (2), the jack (8), the supporting rod (9) and the hydraulic control system are arranged;
a jack (8) which can start hydraulic control after casting of solid sections for about a few hours can drive a lower hanging frame (3) and a jacking frame (2) to climb to a proper height, then a steel bar with a variable section and a combined turnover mould are installed, the bottom plates of the rest layers of inner hanging frames are sequentially stacked on steel orange in a cavity of the variable section of the pier body, and a-2 layer hanging frame under the lower hanging frame 3 can be installed at the same time when the inner square frame is installed;
after casting the variable section concrete, the steel frame is jacked up for 2m again in a uniform strength for a few hours, then a hanging frame hanging rod in the-2 th layer is installed, and a hanging frame outside the-3 rd layer is installed;
along with the rising of the segmental casting steel frame, the lower hanging frame of the subsequent bottom layer is installed layer by layer, all wind-resistant and anti-falling supporting rods are installed, and the reasonable gap between the roller and the surface of the pier body is adjusted through the screw rod when the roller supporting rod (7) is installed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220307276A1 (en) * | 2016-04-08 | 2022-09-29 | Peri Se | Self-climbing system, self-climbing unit and method for moving such a self-climbing unit on a concrete building structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220307276A1 (en) * | 2016-04-08 | 2022-09-29 | Peri Se | Self-climbing system, self-climbing unit and method for moving such a self-climbing unit on a concrete building structure |
| US12044017B2 (en) * | 2016-04-08 | 2024-07-23 | Peri Se | Self-climbing system, self-climbing unit and method for moving such a self-climbing unit on a concrete building structure |
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