CN102691420B - Installation and construction method for multilayer large-span steel truss - Google Patents
Installation and construction method for multilayer large-span steel truss Download PDFInfo
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- CN102691420B CN102691420B CN201210206466.8A CN201210206466A CN102691420B CN 102691420 B CN102691420 B CN 102691420B CN 201210206466 A CN201210206466 A CN 201210206466A CN 102691420 B CN102691420 B CN 102691420B
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Abstract
The invention discloses an installation and construction method for a multilayer large-span steel truss. The installation and construction method comprises the following steps of: installing a support shelf on a foundation; hoisting and fixing a plurality of single large-span steel trusses on the support shelf with erection seams reserved; retesting the trusses which are fixed firmly, and welding and folding the trusses which satisfy the allowable test deviation and meet the folding temperature requirement, thus forming a first-layer large-span steel truss; installing the support shelf on the first-layer large-span steel truss; repeating the steps to obtain the large-span steel trusses of all layers; and dismantling the support shelves. With adoption of a processing mode with layer-by-layer supporting, section-by-section hoisting, welding folding and following support dismantling, the installation and construction method solves the problems of the multilayer large-span steel truss that the installation is complicated, the deformation difficult to control, the integral structure deformation is large and welding joints are easy to crack under the influence of temperature stress; and simultaneously, the installation and construction method reduces the construction difficulty and ensures the construction quality and safety.
Description
Technical field
The present invention relates to technical field of building construction, particularly relate to a kind of multilayer large-span steel truss construction method of installation.
Background technology
Large span steel truss generally needs to be used for single storey industry workshop, large-scale public construction (as gymnasium, exhibition center etc.), large span business hall roof system etc. according to function, its advantage is that large-span steel self compares little, the short construction period of xoncrete structure deadweight, security is high, is especially embodied in and increases building usage space aspect.Multilayer large-span steel truss structure, as a kind of novel version, which ensure that outside the advantage of large span steel truss self, highlights the maximized feature of building using function further.Compare traditional multi-layer concrete structure, multilayer large-span steel truss structure reduces the entirety deadweight of structure, improves the bearing capacity of structure, improves steel building large space, the large pursuit shared on height simultaneously.Because multilayer large-span steel truss affects yielding feature from external force of experiencing, if take when carrying out installation, conventional construction method for hanging lifts, welding procedure, when very easily causing later stage steel truss larger by load, local or overall appearance destroy, and affect construction quality and safety.Therefore, multilayer large-span steel truss construction method of installation is necessary to sum up a kind of new construction method.
Summary of the invention
Technical problem to be solved by this invention is to provide one and requires much higher layer large span steel truss construction method of installation from great, construction quality.
For realizing above-mentioned technique effect, the invention discloses a kind of multilayer large-span steel truss construction method of installation, described method mainly comprises the following steps:
On pedestal, support jig is installed;
The fixing plural single Pin large span steel truss of lifting on described support jig, between adjacent two sections of described single Pin large span steel truss, seam is closed up in indwelling;
Carry out repetition measurement after fixation, meet to measure tolerance and weld after reaching joining temperature requirement and close up described single Pin large span steel truss, form ground floor large span steel truss;
Described ground floor large span steel truss installs described support jig;
Repeat the large span steel truss that above-mentioned steps completes structure at all levels;
Remove described support jig.
The inventive method is further improved and is, successively removes described support jig from top to bottom.
The present invention is owing to have employed above technical scheme, making it have following beneficial effect is: multilayer large-span steel truss construction method of installation of the present invention can utilize rational construction technology and sequence of construction, by adopting support layer by layer, segmental hoisting, welding close up and after tear the processing mode of support open, solve multilayer large-span steel truss installation complexity, Deformation control is difficult, and affect by temperature stress and cause the problems such as structure bulk deformation is large, weld seam is easy to crack, reduce difficulty of construction simultaneously, ensure that construction quality and safety.
Accompanying drawing explanation
Fig. 1 is multilayer large-span steel truss construction and installation schematic diagram of the present invention.
Detailed description of the invention
For the benefit of to the further understanding of structure of the present invention, the present invention explains with a preferred embodiment of Fig. 1.
Consult shown in Fig. 1, multilayer large-span steel truss 1 of the present invention is mainly through following steps construction and installation:
First according to the requirement of Steel Structure Installation calculated description, the support jig 11 meeting designing and calculating requirement is fixed on pedestal 10;
According to fixed single Pin large span steel truss 14 segmentation requirement, in factory, single Pin large span steel truss 14 order is lifted on support jig 11 to on-the-spot by fragmented transport;
Lifting post-equalization, adopts temporary weld mode to be fixed on support jig 11 by single Pin large span steel truss 14;
Between adjacent two sections of single Pin large span steel truss 14, seam 13 is closed up in indwelling, wouldn't weld;
Carry out repetition measurement after fixation, meet to measure tolerance and after reaching joining temperature requirement, carry out welding and close up formation ground floor large span steel truss 12;
Ground floor large span steel truss 12 installs second layer support jig 11 further, installs second layer list Pin large span steel truss 14 after fixation on second layer support jig 11, repetition measurement, welding is subsequently closed up, and completes second layer large span steel truss 15;
Circulation previous step way installs to top layer support jig 11, and hanging oneself at top layer support jig 11 installs into top layer list Pin large span steel truss 14, and welding is closed up and completely completed top layer large span steel truss 16;
After the large span steel truss installation of structure at all levels, remove support jig 11 from top to bottom, complete construction.
Such detail design efficiently solve multilayer large-span steel truss install complicated, Deformation control is difficult, and affects by temperature stress and causes the problems such as structure bulk deformation is large, weld seam is easy to crack, reduce difficulty of construction simultaneously, ensure that construction quality and safety.
Below embodiment is to invention has been detailed description by reference to the accompanying drawings, and those skilled in the art can make many variations example to the present invention according to the above description.Thus, some details in embodiment should not form limitation of the invention, the present invention by the scope that defines using appended claims as protection scope of the present invention.
Claims (2)
1. a multilayer large-span steel truss construction method of installation, is characterized in that described construction method comprises the following steps:
On pedestal, support jig is installed;
The fixing plural single Pin large span steel truss of lifting on described support jig, between adjacent two sections of described single Pin large span steel truss, seam is closed up in indwelling;
Carry out repetition measurement after fixation, meet to measure tolerance and weld after reaching joining temperature requirement and close up described single Pin large span steel truss, form ground floor large span steel truss;
Described ground floor large span steel truss installs described support jig;
Repeat the large span steel truss that above-mentioned steps completes structure at all levels;
Remove described support jig.
2. multilayer large-span steel truss construction method of installation as claimed in claim 1, is characterized in that: successively remove described support jig from top to bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210206466.8A CN102691420B (en) | 2012-06-21 | 2012-06-21 | Installation and construction method for multilayer large-span steel truss |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210206466.8A CN102691420B (en) | 2012-06-21 | 2012-06-21 | Installation and construction method for multilayer large-span steel truss |
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| CN102691420A CN102691420A (en) | 2012-09-26 |
| CN102691420B true CN102691420B (en) | 2015-04-29 |
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| CN201210206466.8A Active CN102691420B (en) | 2012-06-21 | 2012-06-21 | Installation and construction method for multilayer large-span steel truss |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102936962A (en) * | 2012-11-20 | 2013-02-20 | 永升建设集团有限公司 | Construction method of slanting cantilever steel structure supported by temporary steel frame |
| CN103883128B (en) * | 2012-12-19 | 2017-02-15 | 五冶集团上海有限公司 | Multi-tier large-span steel structure mounting method |
| CN103114734B (en) * | 2013-03-08 | 2015-10-28 | 北京工业大学 | A kind ofly be applicable to the rapid constructing method with aerated film depression bar truss |
| CN103216109B (en) * | 2013-04-26 | 2015-02-25 | 江苏沪宁钢机股份有限公司 | Construction method of track gauge variation block slippage of long span spatial composite roof truss |
| CN103410322B (en) * | 2013-08-30 | 2016-02-03 | 南通八建集团有限公司 | The parallel Truss Steel corridor construction method of large span |
| 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 |
| CN103883131A (en) * | 2014-03-31 | 2014-06-25 | 中国建筑第八工程局有限公司 | Connecting structure for roof truss tube and steel tube column and construction method thereof |
| CN104084757B (en) * | 2014-06-26 | 2017-07-11 | 宁夏共享装备有限公司 | Steel truss manufacture craft |
| CN104060841B (en) * | 2014-07-04 | 2016-06-29 | 中国建筑第八工程局有限公司 | Large-span steel girder construction method of installation |
| CN104328922B (en) * | 2014-11-13 | 2016-05-18 | 中铁六局集团有限公司 | High-altitude multilayer is dangled steel construction against way Hoisting Construction Technology |
| CN107338963B (en) * | 2017-07-17 | 2019-05-31 | 中建三局第一建设工程有限责任公司 | A kind of over-the-counter construction method for hanging of super-span truss string structure |
| CN112921813B (en) * | 2021-01-25 | 2022-06-21 | 中建科工集团有限公司 | Double-layer multi-span bridge construction method |
| CN115506604B (en) * | 2022-10-19 | 2023-07-25 | 安徽富煌钢构股份有限公司 | Method for installing first truss of large-span steel structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3567395B2 (en) * | 1996-04-09 | 2004-09-22 | 清水建設株式会社 | Multistory building |
| CN1978801B (en) * | 2005-12-06 | 2010-04-14 | 中建八局第三建设有限公司 | Super-span steel skew arch construction method |
| JP2009185469A (en) * | 2008-02-04 | 2009-08-20 | Kajima Corp | Beam flexual yielding preceding type frame |
| CN202157412U (en) * | 2011-07-11 | 2012-03-07 | 山东建筑大学 | Combining structure of multilayer frames and trusses |
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