CN102926546A - Installation method of inclined net rack of roof - Google Patents

Installation method of inclined net rack of roof Download PDF

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Publication number
CN102926546A
CN102926546A CN2012104930157A CN201210493015A CN102926546A CN 102926546 A CN102926546 A CN 102926546A CN 2012104930157 A CN2012104930157 A CN 2012104930157A CN 201210493015 A CN201210493015 A CN 201210493015A CN 102926546 A CN102926546 A CN 102926546A
Authority
CN
China
Prior art keywords
hoisting
rack
net rack
steel column
angle
Prior art date
Application number
CN2012104930157A
Other languages
Chinese (zh)
Inventor
张志威
亓立刚
王振宇
Original Assignee
中国建筑第八工程局有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国建筑第八工程局有限公司 filed Critical 中国建筑第八工程局有限公司
Priority to CN2012104930157A priority Critical patent/CN102926546A/en
Publication of CN102926546A publication Critical patent/CN102926546A/en

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Abstract

The invention discloses an installation method of the inclined net rack of a roof, comprising the steps of firstly, flatly placing and assembling the integrated net rack on a ground layer, and installing a steel column support system; secondly, connecting a hoisting system above the steel column support system, wherein the hoisting system comprises a steel strand for connecting the integrated net rack, and hoisting the integrated net rack to a predetermined height in the same proportion; thirdly, hoisting the integrated net rack in different proportions according to a fixed axis and a design angle, and turning the integrated net rack to a design angle; and finally, integrally and synchronously hoisting the integrated net rack again to a design installation elevation. In the way, lots of steel tube temporary supports are saved, the potential safety hazards of overhead working are reduced, construction quality is guaranteed, and construction progress is accelerated.

Description

A kind of sloped roof rack mounting method

Technical field

The present invention relates to a kind of rack mounting method, especially, relate to a kind of job practices of sloped roof rack erection ﹠ lift.

Background technology

Large tracts of land sloped roof steel mesh frame lifting is installed the general Synchronous lifting mounting means that adopts, assembly unit is carried out at moulding and angle of inclination ground floor is finished oblique rack according to roofing after, namely on ground floor, respectively weld lower edge welded spherical node inclined plane according to roof grid structure falsework is set one by one, hold rack lower edge solder sphere, ball node is on the inclined plane, angle of inclination after finish with roofing at the angle of inclination, the roofing Elements of Space Grid Truss construct on the ground complete after, utilize support, adopt the load-bearing of flexible steel twisted wire, the lift cylinder cluster, computer control, the hydraulic synchronizing lifting principle is carried out integral roofing rack Synchronous lifting installation in position.

This job practices is larger for the roof grid structure area, the angle of inclination is excessive, the roof grid structure that inclined plane length is long is installed, need to a large amount of falseworks be set at ground floor, simultaneously too high at the falsework scaffolding height on top, rack inclined plane, not only have the potential safety hazard of operation and construction, also be unfavorable for quality control and the inspection of rack welding, construction speed is also numerous and diverse thereupon operation and seriously be affected.Therefore for the sloped roof Elements of Space Grid Truss a kind of new job practices of necessary proposition is installed.

Summary of the invention

Main purpose of the present invention provides a kind of sloped roof steel mesh frame lifting construction method of installation, by roof grid structure being kept flat on the ground assembly unit, adopting Integral synchronous to mention certain altitude and then asynchronous lifting upset rack to become set angle of inclination, the last combined method of Synchronous lifting installation in position, conveniently carry out the installation in position of sloped roof Elements of Space Grid Truss.Specifically, comprise the steps:

At first keep flat the whole rack of assembly unit in ground floor, and the steel column support system is installed;

It connects Hoisting System inferior to steel column support system top, and Hoisting System comprises steel strand connecting overall rack, and whole rack is promoted to predetermined altitude in proportion;

Again, according to being dead axle and design angle, whole rack being carried out different proportion promote, make whole rack turn to design angle;

At last, again whole rack is carried out Integral synchronous and promote, in place to the design and installation absolute altitude.

Preferably, described Hoisting System is hydraulic lifting system.

Preferably, described steel column support system comprises the complex root steel column, and Hoisting System can be mounted on the part steel column.

Preferably, hydraulic lifting system is the lift cylinder cluster.

Preferably, described steel strand are the flexible steel twisted wire.

The invention has the beneficial effects as follows: not only saved a large amount of steel pipe falseworks, also reduced high-altitude working safety hidden danger, guaranteed construction quality, accelerated construction speed.

Description of drawings

Fig. 1 is that roof grid structure keeps flat the assembly unit schematic diagram;

Fig. 2 is that the roof grid structure Synchronous lifting is to the certain altitude view;

Fig. 3 is that the asynchronous lifting of roof grid structure turn to design heeling condition schematic diagram;

Fig. 4 is that the whole rack of roofing rises to the design point schematic diagram that installation is finished in the position.

The specific embodiment

By reference to the accompanying drawings sloped roof rack mounting method of the present invention is described in further detail.

Please referring to Fig. 1, in the present embodiment, this roof grid structure is Elements of Space Grid Truss, forms a whole rack 10 by some steel rack parts assemblies, and this assembly unit keeps flat at ground floor by designing requirement to be carried out.And steel column support system 20 is installed, this steel column support system 20 comprises complex root steel column 200.

As shown in Figure 2, be installed with a Hoisting System (not shown) at steel column support system 20 tops, can select all or part of steel column 200 to be fixedly connected with described Hoisting System, in the present embodiment, adopt hydraulic lifting system, and utilize computer control to promote hydraulic lifting system, Hoisting System with steel strand as promoting rigging, be connected on the rack 10, form some hoist points at rack 10, regulate hydraulic lifting system, each hoist point of whole rack 10 is promoted in proportion, make that each hoist point remains a constant speed in lifting process, synchronously, so whole rack 10 is promoted to predetermined altitude.

As shown in Figure 3, according to both dead axle and design angle, under computer control, each hoist point of whole rack 10 is carried out the lifting of different proportion, namely each hoist point is arranged different hoisting velocities, make each hoist point reach the different displacements that promote, the rack tip tilt is to certain design angle δ, to agree with required roofing gradient.

As shown in Figure 4, last more as shown in Figure 2 step is carried out each hoist point integral body and promoted in proportion, and is in place to the design and installation absolute altitude.

Preferably, steel strand can be the flexible steel twisted wire.

Preferably, hydraulic lifting system is the lift cylinder cluster.

Although roof grid structure mounting method of the present invention is described with reference to current instantiation, but those skilled in the art should be realized that, above example only is that the present invention is described, also can make the variation of various equivalences and revises and all will drop in the scope of claims of the present invention in the situation that do not break away from spirit of the present invention.

Claims (5)

1. a sloped roof rack mounting method is characterized in that, comprises the steps:
At first keep flat the whole rack of assembly unit in ground floor, and the steel column support system is installed;
It is inferior to installing Hoisting System on the steel column support system, and Hoisting System and whole rack form plural hoist point, utilizes described Hoisting System that each hoist point of whole rack is promoted to predetermined altitude in proportion;
Again, according to being dead axle and design angle, each hoist point of whole rack being carried out different proportion promote, make whole rack turn to design angle;
At last, again whole rack is carried out Integral synchronous and promote, in place to the design and installation absolute altitude.
2. sloped roof rack mounting method as claimed in claim 1 is characterized in that, described Hoisting System is hydraulic lifting system.
3. inclination rack mounting method as claimed in claim 1 is characterized in that, described steel column support system comprises the complex root steel column, and Hoisting System is mounted on the part steel column.
4. sloped roof rack mounting method as claimed in claim 2 is characterized in that, described hydraulic lifting system is the lift cylinder cluster.
5. sloped roof rack mounting method as claimed in claim 1 is characterized in that, described Hoisting System connects described each hoist point of whole rack by the flexible steel twisted wire.
CN2012104930157A 2012-11-28 2012-11-28 Installation method of inclined net rack of roof CN102926546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104930157A CN102926546A (en) 2012-11-28 2012-11-28 Installation method of inclined net rack of roof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104930157A CN102926546A (en) 2012-11-28 2012-11-28 Installation method of inclined net rack of roof

Publications (1)

Publication Number Publication Date
CN102926546A true CN102926546A (en) 2013-02-13

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Family Applications (1)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103352576A (en) * 2013-07-24 2013-10-16 山东锦城钢结构有限责任公司 Externally expanding, assembling, converting and lifting method for medium/small span steel structure roof net rack
CN103498562A (en) * 2013-09-23 2014-01-08 江卫青 Multi-roof-unit synchronous lifting method
CN103669886A (en) * 2013-12-20 2014-03-26 上海市机械施工集团有限公司 Installation method for annular steel structure
CN103696576A (en) * 2013-12-12 2014-04-02 上海通用金属结构工程有限公司 Method for constructing industrial heat supply station figured-steel structural roof
CN104481148A (en) * 2014-12-11 2015-04-01 中国十七冶集团有限公司 Construction method of super-long thin-wall color steel tile roof
CN107165419A (en) * 2017-05-24 2017-09-15 山东莱钢建设有限公司 A kind of installation method of steel roof truss
CN108678180A (en) * 2018-05-09 2018-10-19 中建七局安装工程有限公司 Space Reticulated dome ladder lifting construction method

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH0882100A (en) * 1994-09-08 1996-03-26 Takenaka Komuten Co Ltd Lift-up method for constructing catwalk
JP2903945B2 (en) * 1993-06-10 1999-06-14 株式会社大林組 Large span structure and construction method thereof
CN101988308A (en) * 2010-09-30 2011-03-23 中国华西企业有限公司 Non-support installation method of long-span spatial bolt ball steel reticulated shell dome
CN102425274A (en) * 2011-10-14 2012-04-25 安徽鲁班建设投资集团有限公司 Connecting pieces for overall installation of solar panels of large-span hemispherical roof and installation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2903945B2 (en) * 1993-06-10 1999-06-14 株式会社大林組 Large span structure and construction method thereof
JPH0882100A (en) * 1994-09-08 1996-03-26 Takenaka Komuten Co Ltd Lift-up method for constructing catwalk
CN101988308A (en) * 2010-09-30 2011-03-23 中国华西企业有限公司 Non-support installation method of long-span spatial bolt ball steel reticulated shell dome
CN102425274A (en) * 2011-10-14 2012-04-25 安徽鲁班建设投资集团有限公司 Connecting pieces for overall installation of solar panels of large-span hemispherical roof and installation method thereof

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Title
刘建普,钟华,陈杰: "钢网架整体液压提升翻转施工", 《施工技术》, vol. 37, no. 01, 31 May 2008 (2008-05-31), pages 240 - 244 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103352576A (en) * 2013-07-24 2013-10-16 山东锦城钢结构有限责任公司 Externally expanding, assembling, converting and lifting method for medium/small span steel structure roof net rack
CN103498562A (en) * 2013-09-23 2014-01-08 江卫青 Multi-roof-unit synchronous lifting method
CN103696576A (en) * 2013-12-12 2014-04-02 上海通用金属结构工程有限公司 Method for constructing industrial heat supply station figured-steel structural roof
CN103669886A (en) * 2013-12-20 2014-03-26 上海市机械施工集团有限公司 Installation method for annular steel structure
CN104481148A (en) * 2014-12-11 2015-04-01 中国十七冶集团有限公司 Construction method of super-long thin-wall color steel tile roof
CN104481148B (en) * 2014-12-11 2016-06-15 中国十七冶集团有限公司 A kind of ultralong thin walled color steel roofing construction method
CN107165419A (en) * 2017-05-24 2017-09-15 山东莱钢建设有限公司 A kind of installation method of steel roof truss
CN108678180A (en) * 2018-05-09 2018-10-19 中建七局安装工程有限公司 Space Reticulated dome ladder lifting construction method

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Application publication date: 20130213