CN108952242A - A kind of construction method of indoor coal storage yard arch-shaped space truss - Google Patents
A kind of construction method of indoor coal storage yard arch-shaped space truss Download PDFInfo
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- CN108952242A CN108952242A CN201810912336.3A CN201810912336A CN108952242A CN 108952242 A CN108952242 A CN 108952242A CN 201810912336 A CN201810912336 A CN 201810912336A CN 108952242 A CN108952242 A CN 108952242A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a kind of construction method of indoor coal storage yard arch-shaped space truss, the step of construction are as follows: one, preparation of construction；Two, unwrapping wire positioning and inspection；Three, installation starting rack；Four, net-shell net-rack is installed；Five, it checks and accepts；In the step 3 and step 4, alternately size adjusting and the bolt fastening work of rack, in the step 3, the erection sequence for rack of starting to walk are as follows: lower edge ball positions → assembling lower boom →, and ball positioning → web member is installed → of winding up assembles top boom → fastening → correction → examination.By using the construction method of starting rack and net-shell net-rack segmentation installation, construction efficiency can be greatly improved, reduce crane uses machine-team amount and cost of labor, while also assuring the installation quality of rack, construction cost is saved for enterprise, achieves good using effect.
Description
Technical field
The present invention relates to a kind of indoor coal storage yard of boiler more particularly to a kind of construction method of boiler indoor coal storage yard arch-shaped space truss,
Belong to boiler plant technical field.
Background technique
Boiler is widely used in thermo-power station engineering, plays coal combustion generating high steam, then pass through steam drive vapour
Turbine power generation, be one of the energy of weight in national product, existing boiler, which is all matched, is arranged with indoor coal storage yard, due to coal consumption compared with
Greatly, indoor coal storage yard roof generally uses grid structure, when carrying out rack installation, especially for large-scale arch-shaped space truss, if
It is using traditional process in bulk, the problem is that crane is big using machine-team amount, installation period is longer, it is not easy to guarantee installation
Quality, this is live problem to be solved.
Summary of the invention
The technical problem to be solved by the present invention is a kind of construction method of indoor coal storage yard arch-shaped space truss is provided, using this method
It constructs, construction and installation efficiency can be greatly improved, reduce the machine-team usage amount of crane, while ensure that the matter of installation
Amount, the above-mentioned problem of effective solution.
The technical solution of the present invention is as follows: a kind of construction method of indoor coal storage yard arch-shaped space truss, the step of construction are as follows: one, construction
Prepare；Two, unwrapping wire positioning and inspection；Three, installation starting rack；Four, net-shell net-rack is installed；Five, it checks and accepts；The step 3 and step
In rapid four, alternately the size adjusting and bolt fastening of rack work, in the step 3, the erection sequence for rack of starting to walk
Are as follows: lower edge ball positions → assembling lower boom →, and ball positioning → web member is installed → of winding up assembles top boom → fastening → and corrects → test
It receives.
In the step 2, the relative elevation of rack embedded board on civil engineering bearing surface is all measured and is marked by application level instrument
Show at corresponding position, checks whether absolute altitude, the in-plane displancement of checking axial dimension and built-in fitting meet design and exhale wanting for paper
It asks.
In the step 3, the installation method for rack of starting to walk are as follows: starting rack is pacified using truck crane Assembly in pieces at height
Dress carries out, installation 3 to 4 when installation since a grid close to rack end ground installation barrel shell is at the support
After the rack of a lower boom, one end of rack is at this moment sling using truck crane, lower edge grid is installed, lower edge grid is after the installation is completed
Loose suspension hook, then install the grid that winds up, and so on until installation completely across rack, it is in place then to carry out support.
In the step 4, the installation method of net-shell net-rack are as follows: Method for Installation is overhang using smallest assembled rigid unit, i.e., is passed from bottom to top
The erection sequence closed up into, ecto-entad, erection sequence are as follows: one, latticed shell structure first lap is installed the first Pin rack and is installed
Afterwards, then the absolute altitude of corresponding rack is cooperated to be determined the radian of rack, ingredient, then spells tripod on the ground, pushes away triangle
Frame carries out rack junior unit assembly with crane；Two, an overall model is formed after first lap rack installs, and crane is moved to down
A installation site installed corresponding ball button bar part until support position is installed to centre by last mounted rack, is formed
Certain rigidity, other installation methods are same and so on, subsequent installation, it is necessary to rely on the rack of closure, two survey grid framves carry out
It is symmetrically installed, closes up in centre.
The beneficial effects of the present invention are: compared with prior art, using technical solution of the present invention, by using starting net
The construction method of frame and net-shell net-rack segmentation installation, can greatly improve construction efficiency, and reduce crane uses machine-team
Amount and cost of labor, while also assuring the installation quality of rack, construction cost is saved for enterprise, achieves good use
Effect.
Detailed description of the invention
Fig. 1 is present invention starting network frame hoisting schematic diagram one；
Fig. 2 is present invention starting network frame hoisting schematic diagram two；
Fig. 3 is present invention starting network frame hoisting schematic diagram three.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below with reference to this specification attached drawing to this hair
It is bright to be described in further detail.
Embodiment 1: as shown in attached drawing 1~3, the step of a kind of construction method of indoor coal storage yard arch-shaped space truss, construction are as follows: one,
Preparation of construction；Two, unwrapping wire positioning and inspection；Three, installation starting rack；Four, net-shell net-rack is installed；Five, it checks and accepts；The step 3
In step 4, alternately the size adjusting and bolt fastening of rack work, and in the step 3, the installation for rack of starting to walk is suitable
Sequence are as follows: lower edge ball positions → assembling lower boom →, and ball positioning → web member is installed → of winding up assembles top boom → fastening → and corrects → test
It receives.
In the step 2, the relative elevation of rack embedded board on civil engineering bearing surface is all measured and is marked by application level instrument
Show at corresponding position, checks whether absolute altitude, the in-plane displancement of checking axial dimension and built-in fitting meet design and exhale wanting for paper
It asks.
In the step 3, the installation method for rack of starting to walk are as follows: starting rack is pacified using truck crane Assembly in pieces at height
Dress carries out, installation 3 to 4 when installation since a grid close to rack end ground installation barrel shell is at the support
After the rack of a lower boom, one end of rack is at this moment sling using truck crane, lower edge grid is installed, lower edge grid is after the installation is completed
Loose suspension hook, then install the grid that winds up, and so on until installation completely across rack, it is in place then to carry out support.
In the step 4, the installation method of net-shell net-rack are as follows: Method for Installation is overhang using smallest assembled rigid unit, i.e., is passed from bottom to top
The erection sequence closed up into, ecto-entad, erection sequence are as follows: one, latticed shell structure first lap is installed the first Pin rack and is installed
Afterwards, then the absolute altitude of corresponding rack is cooperated to be determined the radian of rack, ingredient, then spells tripod on the ground, pushes away triangle
Frame carries out rack junior unit assembly with crane；Two, an overall model is formed after first lap rack installs, and crane is moved to down
A installation site installed corresponding ball button bar part until support position is installed to centre by last mounted rack, is formed
Certain rigidity, other installation methods are same and so on, subsequent installation, it is necessary to rely on the rack of closure, two survey grid framves carry out
It is symmetrically installed, closes up in centre.
In the present embodiment, this engineering is situation are as follows: indoor coal storage yard arch-shaped space truss project subject is just putting quadrangular pyramid bolt ball-joint
Point rack, structural shape use three-core cylinder frame.Roofing uses the zinc-plated profiled sheet of colored monolayer.Rack span is 70 meters, long
60 meters of degree.Wind up supporting form, is connected by winding up ball and rest with the built-in fitting in concrete column cushion cap.Building enclosure is by purlin
Item and the zinc-plated profiled sheet composition of colored monolayer.The project installation time is short, the duration is tight, on-site consolidation amount is big, installation accuracy is wanted
It asks height, installation exercise radius big, therefore specially formulates the design of this construction operation, need carefully to organize in construction, careful arrangement, with
Guarantee to complete installation task by matter on time.
Since this engineering construction figure is camber rack.The characteristics of belonging to special-shaped reticulated shell for this engineering, my company project
Portion personnel are conscientious, meticulously study drawing after, in conjunction with previous installation similar engineering successful experience abundant, propose " span side
It installs to rack method in bulk is unidirectionally carried out from B axle to A axis up to one stable structural unit of formation, then big portion are matched using crane
Ball node is in the best construction of hinged state at B axle support in conjunction Assembly in pieces at height installation " starting Construction of The Grids operation process
Technical solution.This scheme rack installation fast speed, for starting Construction of The Grids personnel all in Ground Operation, safety coefficient is high,
It is widely used in multiple engineerings.
In the present embodiment, the preparation of step 1 has:
1. grid structure with bolt-sphere joints installation is using unidirectional in bulk to whole across rock-steady structure system is formed from B axle to A axis on ground, so
Crane cooperation carries out the construction method of high altitude bulk afterwards, it is desirable that and place is neat, smooth solid, guarantees that large-scale crane lifts by crane demand,
To guarantee that, in rainy season normal construction, place should have reliable drainage measure.
It is indicated in 2. civil engineering unit application level instrument all measures the relative elevation of rack embedded board on civil engineering bearing surface
At the corresponding position of plane drawing, and this datagram is supplied to project supervision and rack installation engineer, as installation and it is right
The foundation that each supporting-point repetition measurement is checked and accepted.
3. go into operation Qian Xu establishment officer prospecting scene, whether absolute altitude, the in-plane displancement for checking axial dimension and built-in fitting are accorded with
Close design requirement.
In the present embodiment, the installation method of net-shell net-rack are as follows: the determining arrangement and method for construction of latticed shell structure installation is that small spelling is single
Member overhanging Method for Installation, i.e., the erection sequence that progressive, ecto-entad closes up from bottom to top belong to interior expansion method construction, and erection sequence is such as
Under: step 1: after latticed shell structure first lap the first Pin rack of installation installs, then the absolute altitude of corresponding rack is cooperated to be determined
The radian of rack, ingredient, then spells tripod on the ground, pushes away tripod with crane and carries out rack junior unit assembly.
The net rack support for first putting moulding bed position well, the corresponding chord member of connection and web member after measurement is accurate.
Rack starting installation, is assumed unified command of by team leader, and team member finds support accurately, installs corresponding ball and rod piece, unit of starting to walk
Net is at rear, and tissue will be tightened in place from self-test, bolt-connection position is surveyed in time, the stringent adjustment for carrying out rack position, it is desirable that net
The offset of frame support is strict controlled in allowable error.
During Construction of The Grids, the working method of tripod is spelled are as follows:
The ball and rod piece at this are first prepared, a team member finds ball position accurately, docks two web members respectively, is twisted with spanner or pipe wrench
Sleeve bolt, then has a team member to embrace a top boom (towards the thick end of the scroll) again, and bolt is directed at corresponding ball rapidly by another team member
Hole is tightened this top boom in place with spanner or pipe wrench, and in rundown process, web member team member shakes rod piece, so that rod piece and ball
It tightens completely in place.This refills another top boom (wing), finds ball accurately, tighten bolt in place after hours.
Spell the working method of tripod:
For two team members at the node that winds up, two team members find ball corresponding with rod piece accurately, by rod piece at lower edge node respectively
Bolt between ball is tightened rapidly in place, and four team members work at the same time, and should skillfully be cooperated between each other, finally by two team members
Load chord member and lower edge ball.
Step 2: forming an overall model after first lap rack installs, crane is moved into next installation site, is relied on
Last mounted rack, until support position is installed to centre., corresponding ball button bar part is installed, certain rigidity is formed, is constructed
Tissue will be tightened in place from self-test, bolt-connection position is surveyed in time in the process, the stringent adjustment for carrying out rack position, it is desirable that rack
Support offset is strict controlled in allowable error.Other installation methods are same and so on.
In the present embodiment, big portion is had using the main points that crane is coupled construction method:
After first lap rack closes up, rack partially forms entirety, force request is able to satisfy, after related personnel inspects for acceptance
Support is fixed temporarily, and is started subsequent rack and is successively closed up installation；Subsequent installation, it is necessary to the rack of closure is relied on, because closure
Rack size and absolute altitude and stress reach design requirement, and two survey grid framves are symmetrically installed, are closed up in centre, peace subsequent in this way
The rack size closed up and absolute altitude are filled on the basis of foundation ring, ensure that the quality of rack.Steel is hung on mounted rack to climb
Ladder, in order to which operating personnel facilitates arrival work surface；Junior unit is sling by crane (or small suspender), is slowly promoted to, when docking
Bolt is directed at corresponding ball rapidly, is tightened this rod piece in place with spanner or pipe wrench, in rundown process, web member team member shakes
Lever part, so that rod piece and ball are tightened in place completely；Erection sequence are as follows: after the completion of starting region rack installation is closed up, rack peace
Zhuan Liangge group hoists installation from both ends lower, closes up on top, and erection sequence is to promote to one end, returns again after installation to the end
Back towards other end installation.
In the present embodiment, adjustment and firm work have:
(1) measurement checks the quality of rack at any time when rack is installed.It checks lower edge size of mesh opening and diagonal line, checks the grid that winds up
Size and with linea angulata, checks rack longitudinal length, lateral length, grid rise.It can also be adjusted before each interim fulcrum is not removed.
(2) rack entirety amount of deflection is adjusted, deflection value can be controlled by winding up with the adjustment of lower chord size.
(3) rack during the installation process should each interim fulcrum check at any time sinking situation, if any decline situation, in time plus
Gu preventing falling phenomenon.
(4) after rack inspection, adjustment, rack high-strength bolt is re-secured.
(5) after the fastening of rack high-strength bolt, the positioning stove bolt on sleeve is tightened into locking.
(6) rest is installed: according to drawing requirement, in-site installation being carried out to rest after measurement, the gradient is found out, to install room
Panel material.
In the present embodiment, due to using above-mentioned construction method, compared with traditional method in bulk, (specification is crane
20 tons) drop to 17 machine-teams from 25 original machine-teams using machine-team amount, general work drops to 156 from original 252,
And installation period then dropped to 8 days from original 12 days, substantially increased installation effectiveness, while the installation quality also guaranteed, took
Obtained significant effect.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art of the present technique.Finally, it is stated that the above reality
It applies example to be only used to illustrate the technical scheme of the present invention and not to limit it, although having carried out specifically the present invention referring to preferred embodiment
It is bright, those skilled in the art should understand that, can with modification or equivalent replacement of the technical solution of the present invention are made, and
The objective and range for not departing from technical solution of the present invention, are intended to be within the scope of the claims of the invention.
Claims (4)
1. a kind of construction method of indoor coal storage yard arch-shaped space truss, it is characterised in that: the step of construction are as follows: one, preparation of construction；Two, it puts
Line positioning and inspection；Three, installation starting rack；Four, net-shell net-rack is installed；Five, it checks and accepts；In the step 3 and step 4, hand over
It works for the size adjusting and bolt fastening for carrying out rack, in the step 3, the erection sequence for rack of starting to walk are as follows: lower edge ball is fixed
Position → assembling lower boom → ball positioning → web member is installed → of winding up assembles top boom → fastening → correction → examination.
2. a kind of construction method of indoor coal storage yard arch-shaped space truss according to claim 1, it is characterised in that: the step 2
In, the relative elevation of rack embedded board on civil engineering bearing surface is all measured and is indicated at corresponding position by application level instrument,
Check whether absolute altitude, the in-plane displancement of review axial dimension and built-in fitting meet the requirement that paper is exhaled in design.
3. a kind of construction method of indoor coal storage yard arch-shaped space truss according to claim 1, it is characterised in that: the step 3
In, the installation method for rack of starting to walk are as follows: starting rack is installed using truck crane Assembly in pieces at height, from close to rack when installation
One grid of end starts, and carries out ground installation barrel shell is at the support, after the rack for installing 3 to 4 lower booms, this
When one end of rack is sling using truck crane, lower edge grid is installed, lower edge grid loose suspension hook after the installation is completed, then install the net that winds up
Lattice, and so on until installation completely across rack, then carry out support it is in place.
4. a kind of construction method of indoor coal storage yard arch-shaped space truss according to claim 1, it is characterised in that: the step 4
In, the installation method of net-shell net-rack are as follows: Method for Installation is overhang using smallest assembled rigid unit, i.e., progressive, ecto-entad closes up from bottom to top
Erection sequence, erection sequence are as follows: one, after the first Pin rack of latticed shell structure first lap installation installs, then cooperating corresponding net
The absolute altitude of frame is determined the radian of rack, on the ground ingredient, then spells tripod, and pushing away tripod, with crane to carry out rack small
Unit splicing；Two, overall model is formed after first lap rack installs, and crane is moved into next installation site, in dependence
A mounted rack installs corresponding ball button bar part, forms certain rigidity until support position is installed to centre, other peaces
Dress method is same and so on, subsequent installation, it is necessary to rely on the rack of closure, two survey grid framves are symmetrically installed, and are closed in centre
Hold together.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810912336.3A CN108952242A (en) | 2018-08-11 | 2018-08-11 | A kind of construction method of indoor coal storage yard arch-shaped space truss |
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| CN201810912336.3A CN108952242A (en) | 2018-08-11 | 2018-08-11 | A kind of construction method of indoor coal storage yard arch-shaped space truss |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185188A (en) * | 2019-06-04 | 2019-08-30 | 中国十九冶集团有限公司 | Large-span reticulated shell installation method |
| CN112359975A (en) * | 2020-11-05 | 2021-02-12 | 中国十九冶集团有限公司 | Installation method for preventing latticed shell from laterally moving |
| CN112431422A (en) * | 2020-10-29 | 2021-03-02 | 上海宝冶冶金工程有限公司 | Large-span net rack installation method |
| CN112627356A (en) * | 2020-12-22 | 2021-04-09 | 中国二十冶集团有限公司 | Installation method of arched net rack |
| CN113321146A (en) * | 2021-06-09 | 2021-08-31 | 中国二十冶集团有限公司 | Single-side jacking safety protection device and safety jacking method for large-span reticulated shell structure |
| CN113833118A (en) * | 2021-10-11 | 2021-12-24 | 煤炭工业太原设计研究院集团有限公司 | Upright quadrangular pyramid net rack and profile steel stand column combined structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185188A (en) * | 2019-06-04 | 2019-08-30 | 中国十九冶集团有限公司 | Large-span reticulated shell installation method |
| CN112431422A (en) * | 2020-10-29 | 2021-03-02 | 上海宝冶冶金工程有限公司 | Large-span net rack installation method |
| CN112359975A (en) * | 2020-11-05 | 2021-02-12 | 中国十九冶集团有限公司 | Installation method for preventing latticed shell from laterally moving |
| CN112359975B (en) * | 2020-11-05 | 2022-04-15 | 中国十九冶集团有限公司 | Installation method for preventing latticed shell from laterally moving |
| CN112627356A (en) * | 2020-12-22 | 2021-04-09 | 中国二十冶集团有限公司 | Installation method of arched net rack |
| CN113321146A (en) * | 2021-06-09 | 2021-08-31 | 中国二十冶集团有限公司 | Single-side jacking safety protection device and safety jacking method for large-span reticulated shell structure |
| CN113833118A (en) * | 2021-10-11 | 2021-12-24 | 煤炭工业太原设计研究院集团有限公司 | Upright quadrangular pyramid net rack and profile steel stand column combined structure |
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Application publication date: 20181207 |