CN102691420A - Installation and construction method for multilayer large-span steel truss - Google Patents

Installation and construction method for multilayer large-span steel truss Download PDF

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Publication number
CN102691420A
CN102691420A CN2012102064668A CN201210206466A CN102691420A CN 102691420 A CN102691420 A CN 102691420A CN 2012102064668 A CN2012102064668 A CN 2012102064668A CN 201210206466 A CN201210206466 A CN 201210206466A CN 102691420 A CN102691420 A CN 102691420A
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China
Prior art keywords
span steel
steel truss
construction
installation
multilayer
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CN2012102064668A
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Chinese (zh)
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CN102691420B (en
Inventor
王东
亓立刚
杨明
郭锋效
张润辉
杨永
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中国建筑第八工程局有限公司
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Priority to CN201210206466.8A priority Critical patent/CN102691420B/en
Publication of CN102691420A publication Critical patent/CN102691420A/en
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Publication of CN102691420B publication Critical patent/CN102691420B/en

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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

Multilayer large span steel truss construction method of installation

Technical field

The present invention relates to technical field of building construction, relate in particular to a kind of multilayer large span steel truss construction method of installation.

Background technology

Large span steel truss generally is used for single storey industry workshop, large-scale Gongjian (like sports palace, exhibition hall etc.), the commercial hall of large span roof system or the like according to the function needs more; Its advantage is that large-span steel self compares little, the short construction period, safe of concrete structure deadweight, especially is embodied in to increase building usage space aspect.Multilayer large span steel truss structure is as a kind of novel form of structure, and it has guaranteed to have given prominence to the maximized characteristics of building function of use further outside the advantage of large span steel truss self.Compare traditional multi-layer concrete structure, multilayer large span steel truss structure has reduced the integral body deadweight of structure, has improved structure bearing capacity, has promoted the pursuit on steel building large space, the shared greatly height simultaneously.Because the multilayer large span steel truss influences yielding characteristics from the external force of experiencing; Conventional construction method for hanging lifts, welding procedure if take when carrying out installation; Local or whole appearance destroys when very easily causing the later stage steel truss to receive load big, influences construction quality and safety.Therefore, be necessary to sum up a kind of new job practices for multilayer large span steel truss construction method of installation.

Summary of the invention

Technical problem to be solved by this invention provides a kind of from great, the demanding multilayer large span steel truss of construction quality construction method of installation.

For realizing above-mentioned technique effect, the invention discloses a kind of multilayer large span steel truss construction method of installation, said method mainly may further comprise the steps:

On pedestal, install and support moulding bed;

The fixing plural single Pin large span steel truss of lifting is kept somewhere between adjacent two sections said single Pin large span steel truss and is closed up seam on said support moulding bed;

Carry out repetition measurement after the fixation, satisfy to measure allowable variation and reach close up temperature requirement after welding close up said single Pin large span steel truss, constitute the first floor large span steel truss;

Said support moulding bed is installed on said first floor large span steel truss;

Repeat above-mentioned steps and accomplish the large span steel truss of structure at all levels;

Remove said support moulding bed.

The inventive method is further improved and is, successively removes said support moulding bed from top to bottom.

The present invention is owing to adopted above technical scheme; Make it have following beneficial effect to be: multilayer large span steel truss construction method of installation of the present invention can be utilized proper construction technology and sequence of construction; Through adopt support layer by layer, segmental hoisting, welding close up and after tear the processing mode of support open; Solved the multilayer large span steel truss install complicated, Deformation control is difficult; And influenced by thermal stresses and cause problems such as the structural entity distortion is big, weld seam is easy to crack, reduced difficulty of construction simultaneously, guaranteed construction quality and safety.

Description of drawings

Fig. 1 is a multilayer large span steel truss construction and installation sketch map of the present invention.

The specific embodiment

For the benefit of to the further understanding of structure of the present invention, the present invention explains with the preferred embodiment of Fig. 1.

Consult shown in Figure 1ly, multilayer large span steel truss of the present invention 1 is main through the following steps construction and installation:

At first will meet the support moulding bed 11 that designing and calculating requires according to the requirement of Steel Structure Installation calculated description is fixed on the pedestal 10;

According to fixed single Pin large span steel truss 14 segmentation requirements, segmentation is transported to on-the-spot single Pin large span steel truss 14 orders are lifted on and supports on the moulding bed 11 in factory;

The lifting post-equalization adopts interim welding manner that single Pin large span steel truss 14 is fixed in and supports on the moulding bed 11;

Keep somewhere between adjacent two sections single Pin large span steel truss 14 and close up seam 13, wouldn't weld;

Carry out repetition measurement after the fixation, satisfy to measure allowable variation and reach to close up to weld to close up behind the temperature requirement and constitute first floor large span steel truss 12;

The second layer further is installed on first floor large span steel truss 12 is supported moulding bed 11, support installation second layer list Pin large span steel truss 14 on the moulding bed 11 at the second layer after the fixation, repetition measurement, welding subsequently closed up, and accomplishes second layer large span steel truss 15;

Last step way to the top layer support moulding bed 11 that circulates installs, and supports lifting completion top layer list Pin large span steel truss 14 on the moulding bed 11 at top layer, and the completion top layer large span steel truss 16 that finishes is closed up in welding;

After treating the large span steel truss installation of structure at all levels, remove from top to bottom and support moulding bed 11, accomplish construction.

Such working design solved effectively the multilayer large span steel truss install complicated, Deformation control is difficult, and influenced by thermal stresses to cause problems such as the structural entity distortion is big, weld seam is easy to crack, reduced difficulty of construction simultaneously, guaranteed construction quality and safety.

More than combine accompanying drawing embodiment that the present invention is specified, those skilled in the art can make the many variations example to the present invention according to above-mentioned explanation.Thereby some details among the embodiment should not constitute qualification of the present invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.

Claims (2)

1. multilayer large span steel truss construction method of installation is characterized in that said job practices may further comprise the steps:
On pedestal, install and support moulding bed;
The fixing plural single Pin large span steel truss of lifting is kept somewhere between adjacent two sections said single Pin large span steel truss and is closed up seam on said support moulding bed;
Carry out repetition measurement after the fixation, satisfy to measure allowable variation and reach close up temperature requirement after welding close up said single Pin large span steel truss, constitute the first floor large span steel truss;
Said support moulding bed is installed on said first floor large span steel truss;
Repeat above-mentioned steps and accomplish the large span steel truss of structure at all levels;
Remove said support moulding bed.
2. multilayer large span steel truss construction method of installation as claimed in claim 1 is characterized in that: successively remove said support moulding bed from top to bottom.
CN201210206466.8A 2012-06-21 2012-06-21 Installation and construction method for multilayer large-span steel truss CN102691420B (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210206466.8A CN102691420B (en) 2012-06-21 2012-06-21 Installation and construction method for multilayer large-span steel truss

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CN102691420B CN102691420B (en) 2015-04-29

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103114734A (en) * 2013-03-08 2013-05-22 北京工业大学 Rapid construction method for truss with pneumatic membrane compression bar
CN103216109A (en) * 2013-04-26 2013-07-24 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
CN103410322A (en) * 2013-08-30 2013-11-27 南通八建集团有限公司 Large-span parallel truss steel connective corridor construction method
CN103669885A (en) * 2013-12-12 2014-03-26 上海通用金属结构工程有限公司 Segmental hoisting process of ultra-large-span steel truss
CN103883128A (en) * 2012-12-19 2014-06-25 五冶集团上海有限公司 Multi-tier large-span steel structure mounting method
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
CN104060841A (en) * 2014-07-04 2014-09-24 中国建筑第八工程局有限公司 Large-span steel girder installation construction method
CN104084757A (en) * 2014-06-26 2014-10-08 宁夏共享装备有限公司 Steel truss manufacture process
CN104328922A (en) * 2014-11-13 2015-02-04 中铁六局集团有限公司 Down-top hoisting construction technology for high-level multi-layer suspension steel structure
CN107338963A (en) * 2017-07-17 2017-11-10 中建三局第建设工程有限责任公司 A kind of super-span truss string structure construction method for hanging outside the venue

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JPH09273215A (en) * 1996-04-09 1997-10-21 Shimizu Corp Multistoried building
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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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JPH09273215A (en) * 1996-04-09 1997-10-21 Shimizu Corp Multistoried building
CN1978801A (en) * 2005-12-06 2007-06-13 蒋振彦 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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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103883128A (en) * 2012-12-19 2014-06-25 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
CN103114734A (en) * 2013-03-08 2013-05-22 北京工业大学 Rapid construction method for truss with pneumatic membrane compression bar
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
CN103216109A (en) * 2013-04-26 2013-07-24 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
CN103410322A (en) * 2013-08-30 2013-11-27 南通八建集团有限公司 Large-span parallel truss steel connective corridor construction 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
CN103669885A (en) * 2013-12-12 2014-03-26 上海通用金属结构工程有限公司 Segmental hoisting process of ultra-large-span steel truss
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
CN104084757A (en) * 2014-06-26 2014-10-08 宁夏共享装备有限公司 Steel truss manufacture process
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
CN104060841A (en) * 2014-07-04 2014-09-24 中国建筑第八工程局有限公司 Large-span steel girder installation construction method
CN104328922A (en) * 2014-11-13 2015-02-04 中铁六局集团有限公司 Down-top hoisting construction technology for high-level multi-layer suspension steel structure
CN107338963A (en) * 2017-07-17 2017-11-10 中建三局第建设工程有限责任公司 A kind of super-span truss string structure construction method for hanging outside the venue
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

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