CN113503047A - Method for adjusting high-altitude position offset by traction in steel structure lifting process - Google Patents
Method for adjusting high-altitude position offset by traction in steel structure lifting process Download PDFInfo
- Publication number
- CN113503047A CN113503047A CN202110877201.XA CN202110877201A CN113503047A CN 113503047 A CN113503047 A CN 113503047A CN 202110877201 A CN202110877201 A CN 202110877201A CN 113503047 A CN113503047 A CN 113503047A
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- China
- Prior art keywords
- lower chord
- steel truss
- lifting
- lifting section
- chain block
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 84
- 239000010959 steel Substances 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 22
- 210000001503 joint Anatomy 0.000 claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Classifications
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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
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
Abstract
The invention relates to a method for adjusting high-altitude position offset by traction in the lifting process of a steel structure, which comprises the steps of suspending a lifting section steel truss when the lifting section steel truss is about to be lifted in place, tightening a chain block, enabling the lifting section steel truss to return to a normal position in the air, checking the gaps between a lower chord and the lower chord, and between the lower chord and the lower chord, and judging whether horizontal projection overlapping exists; the lifter starts to work, and the gaps between the lower chord and the lower chord, and between the lower chord and the lower chord meet the lifting requirement through the repeated alternate matching of the lifter and the chain block until the steel truss at the lifting section is lifted in place. According to the construction method, the chain block is arranged to assist in adjusting the displacement and deformation of the butt joint of the lifting member, so that the pipe truss at the lifting section is adjusted and corrected for the high-altitude position for multiple times in the lifting process, the rod piece is smoothly aligned, and the construction efficiency is improved; the hand chain block is arranged on the truss web member to control the high-altitude horizontal position of the steel truss at the lifting section, so that the butt collision of the rod members is avoided, and the rod members are smoothly butted and folded.
Description
Technical Field
The invention relates to the technical field of steel structure construction, in particular to a method for adjusting high-altitude position deviation by traction in a steel structure lifting process.
Background
The installation of the large-span structure usually adopts a hydraulic synchronous lifting construction process, when the lifting is about to be in place, the support structure and the rod piece of the lifted structure need to be aligned, and whether the rod piece can be aligned smoothly is the key of whether the truss lifting can be closed.
When the hydraulic synchronous lifting construction process is applied, the lifting section steel truss (3) is influenced by the installation deviation of the lifter (5), the corner generated at the lifting point under the self-weight action of the lifting section steel truss (3) and the deformation caused by the load due to insufficient rigidity of the supporting system, so that the position of the lifting section steel truss in high altitude is horizontally deviated, the lifting section steel truss (3) is possibly collided with the assembled steel truss (1) and the assembled steel truss (2) when being folded to the opening, and the installation precision and the implementation of the lifting process are influenced.
Disclosure of Invention
The invention aims to overcome the defects and provides a method for successfully closing a steel structure by adjusting the high-altitude position offset through traction in the lifting process of the steel structure.
In order to achieve the above object, the present invention is realized by:
a method for adjusting high altitude position deviation by traction in the process of lifting a steel structure comprises
and 6, through the repeated alternate matching of the lifter and the chain block (4), the gaps between the lower chord (3.3) and the lower chord (1.3), and between the lower chord (3.7) and the lower chord (2.3) are ensured to meet the lifting requirement until the steel truss (3) at the lifting section is lifted in place.
According to the construction method, the chain block is arranged to assist in adjusting the displacement and deformation of the butt joint of the lifting member, so that the pipe truss at the lifting section is adjusted and corrected for the high-altitude position for multiple times in the lifting process, the rod piece is smoothly aligned, and the construction efficiency is improved; the hand chain block is arranged on the truss web member to control the high-altitude horizontal position of the steel truss at the lifting section, so that the butt collision of the rod members is avoided, and the rod members are smoothly butted and folded.
Drawings
FIG. 1: the steel truss at the lifting section is suspended when being lifted to the right position;
FIG. 2 is a drawing: schematic position diagrams of the left side and the right side of the steel truss of the lifting section and the installed steel truss;
FIG. 3: a chain block is arranged between the left side of the steel truss of the lifting section and the installed steel truss;
FIG. 4 is a drawing: tightening the chain block, and adjusting the horizontal position of the steel truss at the lifting section;
FIG. 5: the lifter starts to work, the steel truss at the lifting section is lifted upwards, and the steel truss at the lifting section is also gradually moved rightwards at the moment.
FIG. 6: and tightening the chain block again, and adjusting the horizontal position of the steel truss at the lifting section.
FIG. 7: and the steel truss at the lifting section is matched with the chain block alternately for multiple times until the steel truss is aligned with the installed steel truss.
FIG. 8: and lifting the steel truss to the lifting section to complete folding.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in figures 1-8, a method for adjusting high altitude position deviation by traction in the process of lifting a steel structure comprises
and 6, through the repeated alternate matching of the lifter and the chain block (4), the gaps between the lower chord (3.3) and the lower chord (1.3), and between the lower chord (3.7) and the lower chord (2.3) are ensured to meet the lifting requirement until the steel truss (3) at the lifting section is lifted in place.
According to the construction method, the chain block is arranged to assist in adjusting the displacement and deformation of the butt joint of the lifting member, so that the pipe truss at the lifting section is adjusted and corrected for the high-altitude position for multiple times in the lifting process, the rod piece is smoothly aligned, and the construction efficiency is improved; the hand chain block is arranged on the truss web member to control the high-altitude horizontal position of the steel truss at the lifting section, so that the butt collision of the rod members is avoided, and the rod members are smoothly butted and folded.
Claims (1)
1. A method for adjusting high-altitude position deviation by traction in a steel structure lifting process is characterized by comprising the following steps: comprises that
Step 1, pausing a lifting section steel truss (3) when the lifting section steel truss is lifted in place, checking whether the lifting section steel truss (3) has deformation or displacement of a butt joint port, and judging whether the butt joint port of a lower chord (3.3) and a lower chord (1.3) of an installed steel truss (1) or the butt joint port of a lower chord (3.7) and a lower chord (2.3) of an installed steel truss (2) is horizontally projected and overlapped, so that collision is caused when the lifting is continued;
step 2, if the horizontal projections of the butt joint of the lower chord (3.7) and the lower chord (2.3) are overlapped, installing a chain block (4) and a steel wire rope (4.1) on a web member (1.4) of the installed steel truss (1) and a web member (3.4) of the lifting section steel truss (3);
step 3, tightening the chain block (4), enabling the lifting section steel truss (3) to return to a normal position in high altitude, and checking whether gaps between the lower chord (3.3) and the lower chord (1.3) and gaps between the lower chord (3.7) and the lower chord (2.3) exist or not, wherein horizontal projections are overlapped;
step 4, if no horizontal overlapping exists, the lifter (5) starts to work, the lifting section steel truss (3) is integrally lifted upwards slowly through the steel strand (6), at the moment, the chain block (4) is slowly loosened due to the fact that the lifting section steel truss (3) and the installed steel truss (1) are gradually close to each other, and the high horizontal position of the lifting section steel truss (3) begins to change again;
step 5, checking the gaps between the lower chord (3.3) and the lower chord (1.3), and between the lower chord (3.7) and the lower chord (2.3) again, and tightening the chain block (4) to enable the steel truss (3) at the lifting section to return to a normal position in high altitude;
and 6, through the repeated alternate matching of the lifter and the chain block (4), the gaps between the lower chord (3.3) and the lower chord (1.3), and between the lower chord (3.7) and the lower chord (2.3) are ensured to meet the lifting requirement until the steel truss (3) at the lifting section is lifted in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110877201.XA CN113503047A (en) | 2021-07-31 | 2021-07-31 | Method for adjusting high-altitude position offset by traction in steel structure lifting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110877201.XA CN113503047A (en) | 2021-07-31 | 2021-07-31 | Method for adjusting high-altitude position offset by traction in steel structure lifting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113503047A true CN113503047A (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110877201.XA Pending CN113503047A (en) | 2021-07-31 | 2021-07-31 | Method for adjusting high-altitude position offset by traction in steel structure lifting process |
Country Status (1)
| Country | Link |
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| CN (1) | CN113503047A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517586A (en) * | 2022-03-10 | 2022-05-20 | 安徽伟宏钢结构集团股份有限公司 | Method for adjusting position deviation in steel structure lifting process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5577362A (en) * | 1993-05-14 | 1996-11-26 | Mitsubishi Jukogyo Kabushiki Kaisha | Module construction method in a steel structure building zone |
| CN104213714A (en) * | 2014-08-27 | 2014-12-17 | 中国建筑第二工程局有限公司 | Hoisting point reinforcing structure and hoisting construction method for ultra-large type roof |
| US20160069099A1 (en) * | 2011-01-26 | 2016-03-10 | Wobben Properties Gmbh | Method and device for erecting a tower for a wind energy plant |
| CN110778127A (en) * | 2019-11-12 | 2020-02-11 | 上海宝冶集团有限公司 | In-situ assembling and lifting construction aligning method for multilayer steel truss |
| CN112878699A (en) * | 2019-11-29 | 2021-06-01 | 中冶(上海)钢结构科技有限公司 | Construction method for butting pipe truss with steel casting tongue-and-groove branch pipe during hoisting of pipe truss |
-
2021
- 2021-07-31 CN CN202110877201.XA patent/CN113503047A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5577362A (en) * | 1993-05-14 | 1996-11-26 | Mitsubishi Jukogyo Kabushiki Kaisha | Module construction method in a steel structure building zone |
| US20160069099A1 (en) * | 2011-01-26 | 2016-03-10 | Wobben Properties Gmbh | Method and device for erecting a tower for a wind energy plant |
| CN104213714A (en) * | 2014-08-27 | 2014-12-17 | 中国建筑第二工程局有限公司 | Hoisting point reinforcing structure and hoisting construction method for ultra-large type roof |
| CN110778127A (en) * | 2019-11-12 | 2020-02-11 | 上海宝冶集团有限公司 | In-situ assembling and lifting construction aligning method for multilayer steel truss |
| CN112878699A (en) * | 2019-11-29 | 2021-06-01 | 中冶(上海)钢结构科技有限公司 | Construction method for butting pipe truss with steel casting tongue-and-groove branch pipe during hoisting of pipe truss |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517586A (en) * | 2022-03-10 | 2022-05-20 | 安徽伟宏钢结构集团股份有限公司 | Method for adjusting position deviation in steel structure lifting process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211015 |
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| RJ01 | Rejection of invention patent application after publication |