CN110863568B - Hoisting construction method for large-span steel structure roof in complex environment - Google Patents
Hoisting construction method for large-span steel structure roof in complex environment Download PDFInfo
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- CN110863568B CN110863568B CN201911155723.8A CN201911155723A CN110863568B CN 110863568 B CN110863568 B CN 110863568B CN 201911155723 A CN201911155723 A CN 201911155723A CN 110863568 B CN110863568 B CN 110863568B
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- roof
- steel truss
- construction method
- complex environment
- walking
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
Abstract
The invention discloses a hoisting construction method for a large-span steel structure roof in a complex environment, and belongs to the field of large-scale roof hoisting engineering. The two crawler cranes are used for hoisting the segmented steel truss roof at trisection points, the included angle between the chain and the steel truss roof is 30-60 degrees to ensure the structural stability, and the collision between structures can be reduced by using the walking wheel assembly and the walking track, so that the construction cost can be reduced, the construction steps can be simplified, and the operation safety can be improved. Through the top of stably moving to required vertical support post, connect into whole back through supporting seat and mounting, the rethread adjusts locking unit and makes the constant head tank separation and then wholly demolish the walking wheel assembly. The lateral deviation in the construction process is avoided, so that the safety is improved, the installation accuracy is ensured, and the operation steps and the construction cost are reduced.
Description
Technical Field
The invention belongs to the technical field of large-scale roof hoisting engineering, and particularly relates to a hoisting construction method for a large-span steel structure roof under a complex environment.
Background
With the continuous improvement of the scientific and technical level, the requirements of people on buildings are higher and higher. Thanks to the improvement of the installation level of the steel structure, the marvelous large-span building with complex shape is endlessly developed, and the traditional thought concept of people is subverted when people pursue large-space architectural shapes such as large-span stadiums, waiting (vehicle) and airport halls, and the dual pursuit of people on the practicability of buildings and the aesthetic feeling of architectural art is reflected. However, this also brings great challenges to constructors, who should not only build a building conforming to the requirements of owners, but also overcome the complex environment to achieve the purpose of ensuring the safety, applicability and durability of the building through reasonable technical management and organization management. When the environment of the position where the building is located is complex and the building cannot be installed according to a conventional steel structure installation method, the lateral deviation cannot occur during hoisting to cause safety accidents, the synchronous operation of a crane cannot be guaranteed in the hoisting process in the traditional hoisting mode, and then installation deviation occurs or the collision between structures affects installation engineering.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a hoisting construction method for a large-span steel structure roof in a complex environment, which avoids lateral deviation, improves the safety, ensures the accurate installation, and reduces the operation steps and the construction cost.
In order to achieve the purpose, the invention adopts the following scheme:
a construction method for hoisting a large-span steel structure roof in a complex environment comprises the following steps,
s1, fixedly mounting a walking track on the top of each vertical supporting column preset on two sides;
s2, assembling each short steel frame into a complete sectional steel truss roof, and fixedly installing a fixing piece and a traveling wheel assembly at the bottom of the steel truss roof;
s3, evenly dividing three equant points on the segmented steel truss roof, evenly distributing at least three lifting points around the two equant points on two sides, simultaneously lifting the steel truss roof by using two crawler cranes through a chain to enable a walking wheel assembly at the bottom to be matched with a walking track, and enabling an included angle between the chain and a tangent line of the steel truss roof at the corresponding lifting point to be 30-60 degrees;
s4, continuously transferring the segmented steel truss roof to the top of a preset vertical supporting column by using a crawler crane, fixedly installing a supporting seat on the top of the preset vertical supporting column, and connecting the supporting seat and the fixing piece into a whole by using the supporting seat;
s5, repeating the steps S2 and S3 until all the segmented steel truss roofs are completely installed and connected into a whole, and then removing the traveling wheel assemblies and the traveling rails.
Furthermore, the longitudinal section of the fixing piece is of a V-shaped structure, and connecting holes are formed in two side walls of the fixing piece.
Furthermore, the supporting seat comprises a supporting plate and a connecting plate, the supporting plate is of a V-shaped structure connected with the fixing piece in a matched mode, the supporting plate is fixedly connected to the connecting plate, rib plates are additionally arranged between two side walls of the supporting plate and the connecting plate, and the connecting plate is provided with a connecting hole connected with the vertical supporting column.
Further, the walking wheel assembly comprises a fixing base, a fixing rod, a sleeve, a locking unit and a connecting base, walking wheels located in walking tracks are arranged on the fixing base, one end of the fixing rod is fixedly connected with the fixing base, a plurality of positioning grooves are evenly formed in the surface of the fixing rod, the other end of the fixing rod penetrates through the inside of the sleeve, the sleeve is provided with the locking unit connected with the positioning grooves in a matched mode, and the connecting base can be detachably connected to the bottom of the steel truss roof.
Furthermore, the locking unit comprises a clamping part and an adjusting part which are integrally connected, and a through hole for installing the rotating shaft to rotate is formed between the clamping part and the adjusting part.
Compared with the prior art, the invention can obtain the following technical effects:
the two crawler cranes are used for hoisting the segmented steel truss roof at trisection points, the included angle between the chain and the steel truss roof is 30-60 degrees to ensure the structural stability, and the collision between structures can be reduced by using the walking wheel assembly and the walking track, so that the construction cost can be reduced, the construction steps can be simplified, and the operation safety can be improved. Through the top that stably moves to required vertical support post, connect into whole back through bearing and mounting, the rethread adjusts locking unit and makes the constant head tank separation and then wholly demolish the walking wheel subassembly. The lateral deviation in the construction process is avoided, so that the safety is improved, the installation accuracy is ensured, and the operation steps and the construction cost are reduced.
Drawings
FIG. 1 is a diagram of the overall structural behavior of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure: 1. a vertical support column; 2. a traveling rail; 3. a steel truss roof; 4. a fixing member; 5. a supporting seat; 51. a support plate; 52. a connecting plate; 6. a fixed seat; 7. fixing the rod; 8. a sleeve; 9. a locking unit; 10. positioning a groove; 11. a connecting seat; 12. a fastening part; 13. an adjusting part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
referring to fig. 1 to 2, a hoisting construction method for a large-span steel structure roof in a complex environment comprises the following steps,
s1, fixedly mounting a walking rail 2 on the top of each vertical supporting column 1 preset on two sides, and ensuring that the walking rails 2 are positioned on the same horizontal plane;
s2, assembling each short steel frame into a complete segmented steel truss roof 3, and fixedly installing a fixing piece 4 and a walking wheel assembly at the bottom of the steel truss roof 3;
s3, evenly dividing three equant points on the segmented steel truss roof 3, evenly distributing four lifting points around the two equant points on the two sides, simultaneously lifting the steel truss roof 3 by using two crawler cranes through a chain to enable a walking wheel assembly at the bottom to be matched with the walking track 2, and enabling an included angle between the chain and a tangent line of the steel truss roof 3 at the corresponding lifting point to be 45 degrees;
s4, continuously transferring the segmented steel truss roof 3 to the top of the preset vertical supporting column 1 by using a crawler crane, fixedly installing a supporting seat 5 on the top of the preset vertical supporting column 1, and fixing the hoisted steel truss roof 3 by using the supporting seat 5 and a fixing piece 4 connected into a whole;
s5, repeating the steps S3 and S4 until all the segmented steel truss roofs 3 are completely installed and connected into a whole, and then removing the traveling wheel assemblies and the traveling rails 2.
Furthermore, the longitudinal section of the fixing piece 4 is of a V-shaped structure, the contact surface of the fixing piece and the supporting seat 5 can be effectively increased by utilizing the V-shaped structure, connecting holes are formed in the two side walls of the fixing piece 4, and the fixing piece and the supporting seat are connected into a whole by utilizing bolts through the connecting holes.
Further, the supporting seat 5 comprises a supporting plate 51 and a connecting plate 52, the supporting plate 51 is a V-shaped structure connected with the fixing piece 4 through bolts, the connecting strength and the positioning effect between the fixing piece 4 and the supporting seat 5 can be effectively guaranteed by utilizing the two V-shaped structures, the supporting plate 51 is fixedly connected to the connecting plate 52, rib plates are additionally arranged between two side walls of the supporting plate 51 and the connecting plate 52, connecting holes connected with the vertical supporting columns 1 are formed in the connecting plate 52, and the vertical supporting columns 1 are connected with the steel truss roof 3 into a whole by utilizing bolts penetrating through the connecting holes.
Further, the walking wheel subassembly includes fixing base 6, dead lever 7, sleeve pipe 8, locking unit 9 and connecting seat 11, be equipped with the walking wheel that is located walking track 2 on the fixing base 6, the bottom and the 6 fixed connection of fixing base of dead lever 7, a plurality of constant head tank 10 has evenly been seted up on the surface of dead lever 7, the top end of dead lever 7 runs through the inside at sleeve pipe 8, be equipped with the locking unit 9 with constant head tank 10 accordant connection on the sleeve pipe 8, it can keep the take turns subassembly a take the altitude to utilize locking unit 9 and constant head tank 10 matching, if reduce the separation behind the altitude through the regulation and can make walking wheel subassembly and walking track 2 separation, connecting seat 11 can dismantle the bottom of connecting at steel truss roof 3, and then realize dismantling work through the whole separation.
Further, locking unit 9 includes an organic whole connection's block portion 12 and regulation portion 13, is equipped with between block portion 12 and the regulation portion 13 to be used for installing the rotation axis and realizes rotatory through-hole, and locking unit 9 is articulated with sleeve pipe 8 through utilizing the rotation axis, adjusts through regulation portion 13 to make block portion 12 and constant head tank 10 realize the cooperation or separate, is convenient for demolish and fix a position the walking wheel subassembly.
The two crawler cranes are used for hoisting the segmented steel truss roof at trisection points, the included angle between the chain and the steel truss roof is 30-60 degrees to ensure the structural stability, and the collision between structures can be reduced by using the walking wheel assembly and the walking track, so that the construction cost can be reduced, the construction steps can be simplified, and the operation safety can be improved. Through the top of stably moving to required vertical support post, connect into whole back through supporting seat and mounting, the rethread adjusts locking unit and makes the constant head tank separation and then wholly demolish the walking wheel assembly. The lateral deviation in the construction process is avoided, so that the safety is improved, the installation accuracy is ensured, and the operation steps and the construction cost are reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A hoisting construction method for a large-span steel structure roof in a complex environment is characterized by comprising the following steps,
s1, fixedly mounting a walking track (2) on the top of each vertical supporting column (1) preset on two sides;
s2, assembling each short steel frame into a complete segmented steel truss roof (3), and fixedly installing a fixing piece (4) and a traveling wheel assembly at the bottom of the steel truss roof (3);
s3, evenly dividing three equant points on the segmented steel truss roof (3), evenly distributing at least three hanging points around the two equant points on the two sides, and simultaneously lifting the steel truss roof (3) by using two crawler cranes through a chain to enable a walking wheel assembly at the bottom to be matched with a walking track (2), wherein the chain forms an included angle of 30-60 degrees with the tangent line of the steel truss roof (3) at the corresponding hanging point;
s4, continuously utilizing a crawler crane to transfer the segmented steel truss roof (3) to the top of the preset vertical supporting column (1), fixedly installing a supporting seat (5) on the top of the preset vertical supporting column (1), and utilizing the supporting seat (5) to be connected with the fixing piece (4) into a whole;
s5, repeating the steps S3 and S4 until all the segmented steel truss roofs (3) are completely installed and connected into a whole, and then removing the walking wheel assemblies and the walking rails (2).
2. The hoisting construction method for the large-span steel structure roof under the complex environment according to claim 1, wherein the longitudinal section of the fixing member (4) is a V-shaped structure, and both side walls of the fixing member (4) are provided with connecting holes.
3. The hoisting construction method of the large-span steel structure roof under the complex environment according to claim 2, characterized in that the supporting seat (5) comprises a supporting plate (51) and a connecting plate (52), the supporting plate (51) is a V-shaped structure connected with the fixing member (4) in a matching manner, the supporting plate (51) is fixedly connected to the connecting plate (52), rib plates are additionally arranged between two side walls of the supporting plate (51) and the connecting plate (52), and the connecting plate (52) is provided with a connecting hole connected with the vertical supporting column (1).
4. The hoisting construction method for the large-span steel structure roof under the complex environment according to claim 3, characterized in that the walking wheel assembly comprises a fixed seat (6), a fixed rod (7), a sleeve (8), a locking unit (9) and a connecting seat (11), a walking wheel positioned in the walking track (2) is arranged on the fixed seat (6), one end of the fixed rod (7) is fixedly connected with the fixed seat (6), a plurality of positioning grooves (10) are uniformly formed in the surface of the fixed rod (7), the other end of the fixed rod (7) penetrates through the sleeve (8), the sleeve (8) is provided with the locking unit (9) which is matched and connected with the positioning grooves (10), and the connecting seat (11) is detachably connected to the bottom of the steel truss roof (3).
5. The hoisting construction method for the large-span steel structure roof under the complex environment according to claim 4 is characterized in that the locking unit (9) comprises an integrally connected clamping part (12) and an adjusting part (13), and a through hole for installing a rotating shaft to rotate is arranged between the clamping part (12) and the adjusting part (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911155723.8A CN110863568B (en) | 2019-11-22 | 2019-11-22 | Hoisting construction method for large-span steel structure roof in complex environment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911155723.8A CN110863568B (en) | 2019-11-22 | 2019-11-22 | Hoisting construction method for large-span steel structure roof in complex environment |
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| CN110863568A CN110863568A (en) | 2020-03-06 |
| CN110863568B true CN110863568B (en) | 2021-04-09 |
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| CN111441596A (en) * | 2020-04-03 | 2020-07-24 | 中电建路桥集团有限公司 | Support-free jig frame universal device for space special-shaped truss construction and construction method thereof |
| CN111851746A (en) * | 2020-08-04 | 2020-10-30 | 中建八局第三建设有限公司 | Construction method of multi-line type large-span inverted trapezoidal space truss roof system |
| CN114086772B (en) * | 2021-11-27 | 2022-11-18 | 韶关市第一建筑工程有限公司 | Installation and construction method of herringbone steel truss |
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| CN101666163B (en) * | 2009-09-15 | 2010-12-01 | 中冶建工有限公司 | High-altitude long-span roofing pipe truss installation method |
| CN103669885B (en) * | 2013-12-12 | 2016-03-30 | 上海通用金属结构工程有限公司 | Super-span steel truss sections hoisting |
| CN104594642A (en) * | 2014-12-09 | 2015-05-06 | 中国化学工程第三建设有限公司 | Large-span net rack aloft pairing, installing and overall horizontal moving method |
| CN104989114B (en) * | 2015-07-15 | 2017-05-10 | 上海绿地建设(集团)有限公司 | Sliding construction device and method for large-span arc-shaped roof |
| JP6878898B2 (en) * | 2017-01-16 | 2021-06-02 | 株式会社大林組 | Roof frame construction method |
| CN107090982A (en) * | 2017-04-28 | 2017-08-25 | 中国二十冶集团有限公司 | A kind of ultra-high ultra-large moves the installation method of wheel-track type steel construction |
| CN110439292A (en) * | 2019-08-21 | 2019-11-12 | 攀枝花攀钢集团设计研究院有限公司 | Fabrication and installation system and construction technology for large-scale closed type industrial stockyard roof truss |
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