CN105064697A - Roof grid elevating method - Google Patents

Roof grid elevating method Download PDF

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Publication number
CN105064697A
CN105064697A CN201510420050.XA CN201510420050A CN105064697A CN 105064697 A CN105064697 A CN 105064697A CN 201510420050 A CN201510420050 A CN 201510420050A CN 105064697 A CN105064697 A CN 105064697A
Authority
CN
China
Prior art keywords
lifting
rod
lift unit
place
roof grid
Prior art date
Application number
CN201510420050.XA
Other languages
Chinese (zh)
Inventor
沈建东
沈虎
沈龙
Original Assignee
安徽跨宇钢结构网架工程有限公司
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 安徽跨宇钢结构网架工程有限公司 filed Critical 安徽跨宇钢结构网架工程有限公司
Priority to CN201510420050.XA priority Critical patent/CN105064697A/en
Publication of CN105064697A publication Critical patent/CN105064697A/en

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Abstract

The invention discloses a roof grid elevating method, comprising assembly, primary elevating, standing for inspection, secondary elevating, mounting of a gate truss understructure, tertiary elevating, demounting and the like. The method has the advantages of low mounting cost and high construction efficiency; a construction platform is safe and reliable, construction difficulty is greatly reduced, and all quality, safety, construction period and the like are all benefited.

Description

Roof grid structure method for improving

Technical field:

The present invention relates to a kind of roof grid structure method for improving.

Background technology:

In engineer operation, large for span, highly high building, building lifting platform is one of first-selection of convenient construction, and suitable lifting platform must take into account cost, safety and easy construction.

Summary of the invention:

In order to solve the problem existing for background technology, the present invention is by the following technical solutions:

A kind of roof grid structure method for improving, comprises the steps:

(1) structure ± roof grid structure lift unit is assemblied into entirety by 0.000 absolute altitude place, only assembled design elevation place and with the rod member of upper part of truss place, gate, utilize space truss structure post that lifting platform is set, and between structural column and falsework, set up 5 groups of connecting rods, hydraulic synchronizing lifting system is installed;

(2) hydraulic synchronizing lifting system is debugged, and check lift unit and promote temporary measure whether meet design requirement, confirm errorless after start examination promote, after utilizing hydraulic synchronizing lifting system that roof grid structure lift unit Integral lifting is about 150mm, suspend promote;

(3) leave standstill after 12 hours, again check lift unit and promote temporary measure whether meet design requirement, confirm errorless after utilize hydraulic synchronizing lifting system that roofing lift unit Integral lifting is about 7.0m after, suspend and promote and start gate truss the latter half structure (design elevation sentences the rod member of lower part) is installed, and the lifting at truss place, gate interim ball and reinforcing rod member are replaced to lower edge layer plane;

(4), after utilizing hydraulic synchronizing lifting system that roofing lift unit is overall increased to design elevation, install and the rear dress rod member at the bearing place of suspension centre and the rear dress rod member at truss place, gate are not set;

(5) after installation, remove after the release of hydraulic synchronizing lifting system level, the rear dress rod member being provided with the bearing place promoting suspension centre is installed, complete the installation work of roof grid structure.

It is low that the present invention has installation cost, the advantage that efficiency of construction is high, and operation platform is safe and reliable, greatly reduces installation difficulty, all favourable in quality, safety and duration etc.

Accompanying drawing illustrates:

Fig. 1 is step (1) schematic diagram;

Fig. 2 is step (2) schematic diagram;

Fig. 3 is step (3) schematic diagram;

Fig. 4 is step (4) schematic diagram;

Fig. 5 is step (5) schematic diagram.

Detailed description of the invention:

For certain experiment hall engineering, engineering design absolute altitude is 28.300m, and truss place, gate absolute altitude is 20.300m:

A kind of roof grid structure method for improving, comprises the steps:

(1) structure ± roof grid structure lift unit 1 is assemblied into entirety by 0.000 absolute altitude place, truss place, gate is assembled+28.300m and the rod member with upper part only, utilize space truss structure post 2 that lifting platform 3 is set, and between structural column 2 and falsework 4, set up 5 groups of connecting rods 5, install hydraulic synchronizing lifting system (comprise hydraulic rockshaft 6, be connected with lifting platform by special-purpose steel twisted wire 73 interim ball 8 etc.);

(2) check roof grid structure lift unit 1 and promote temporary measure and whether meet designing requirement, after confirming to meet designing requirement, hydraulic pressure lift synchro system takes the method for hierarchical loading to carry out prestrain, namely load successively with the order of design lifting force 20%, 40%, 60%, 70%, 80%, 90%, 95%, 100%, until rack lift unit 1 departs from assembled moulding bed 10 and promotes about 150mm, suspend and promote;

(3) leave standstill after 12 hours, again check lift unit 1 and promote temporary measure whether meet design requirement, confirm errorless after utilize hydraulic synchronizing lifting system that roofing lift unit 1 Integral lifting is about 7.0m after, suspend and promote and start gate truss the latter half structure (+28.300m is with the rod member of lower part) is installed, and the lifting at truss place, gate interim ball 8 and reinforcing rod member 9 are replaced to lower edge layer plane;

(4), after utilizing hydraulic synchronizing lifting system that roofing lift unit 1 is overall increased to+28.300m, install and the rear dress rod member at the bearing place of suspension centre and the rear dress rod member at truss place, gate are not set;

(5) after installation, remove after the release of hydraulic synchronizing lifting system level, the rear dress rod member being provided with the bearing place promoting suspension centre is installed, complete the installation work of roof grid structure.

Claims (3)

1. a roof grid structure method for improving, is characterized in that, comprises the steps:
(1) structure ± roof grid structure lift unit is assemblied into entirety by 0.000 absolute altitude place, only assembled design elevation place and with the rod member of upper part of truss place, gate, utilize rack lattice column that lifting platform is set, and between lattice column and falsework, set up 5 groups of connecting rods, hydraulic synchronizing lifting system is installed;
(2) hydraulic synchronizing lifting system is debugged, and check lift unit and promote temporary measure whether meet design requirement, confirm errorless after start examination promote, after utilizing hydraulic synchronizing lifting system that roof grid structure lift unit Integral lifting is about 150mm, suspend promote;
(3) leave standstill after 12 hours, again check lift unit and promote temporary measure whether meet design requirement, confirm errorless after utilize hydraulic synchronizing lifting system that roofing lift unit Integral lifting is about 7.0m after, suspend and promote and start gate truss the latter half structure (design elevation sentences the rod member of lower part) is installed, and the lifting at truss place, gate interim ball and reinforcing rod member are replaced to lower edge layer plane;
(4), after utilizing hydraulic synchronizing lifting system that roofing lift unit is overall increased to design elevation, install and the rear dress rod member at the bearing place of suspension centre and the rear dress rod member at truss place, gate are not set;
(5) after installation, remove after the release of hydraulic synchronizing lifting system level, the rear dress rod member being provided with the bearing place promoting suspension centre is installed, complete the installation work of roof grid structure.
2. a kind of roof grid structure method for improving according to claim 1, it is characterized in that, in the lifting process of described step (3) and/or (4), when lift unit conflicts mutually with platform connecting rod, this connecting rod is removed, after unit lifting position to be hoisted exceeds this connecting rod, then connecting rod is recovered.
3. a kind of roof grid structure method for improving according to claim 1, it is characterized in that, in step (2), hydraulic pressure lift synchro system takes the method for hierarchical loading to carry out prestrain, namely loads successively with the order of design lifting force 20%, 40%, 60%, 70%, 80%, 90%, 95%, 100%.
CN201510420050.XA 2015-07-15 2015-07-15 Roof grid elevating method CN105064697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510420050.XA CN105064697A (en) 2015-07-15 2015-07-15 Roof grid elevating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510420050.XA CN105064697A (en) 2015-07-15 2015-07-15 Roof grid elevating method

Publications (1)

Publication Number Publication Date
CN105064697A true CN105064697A (en) 2015-11-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108532767A (en) * 2018-05-09 2018-09-14 中建七局安装工程有限公司 Lifting construction method after space Reticulated dome is first pushed up by ring expansion
CN110185151A (en) * 2019-05-22 2019-08-30 三箭建设工程集团有限公司 More hydraulic device synchronization of jacking up construction methods of wide span steel roof frame

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04111829A (en) * 1990-08-30 1992-04-13 Shimizu Corp Method for constructing large-span roof
JPH04161566A (en) * 1990-10-24 1992-06-04 Tokyu Constr Co Ltd Constructing apparatus for large space building
CN103075016A (en) * 2013-01-22 2013-05-01 北京工业大学 Installing method of extendable latticed shell structure
CN103225408A (en) * 2013-04-18 2013-07-31 成军 Construction method for long-span net rack multiple-mast independent type integral lifting
CN104389433A (en) * 2014-10-21 2015-03-04 北京建工土木工程有限公司 Integral hoisting system and construction method for steel truss support concrete heavy roof system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04111829A (en) * 1990-08-30 1992-04-13 Shimizu Corp Method for constructing large-span roof
JPH04161566A (en) * 1990-10-24 1992-06-04 Tokyu Constr Co Ltd Constructing apparatus for large space building
CN103075016A (en) * 2013-01-22 2013-05-01 北京工业大学 Installing method of extendable latticed shell structure
CN103225408A (en) * 2013-04-18 2013-07-31 成军 Construction method for long-span net rack multiple-mast independent type integral lifting
CN104389433A (en) * 2014-10-21 2015-03-04 北京建工土木工程有限公司 Integral hoisting system and construction method for steel truss support concrete heavy roof system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
178288706LIN: "网架提升施工方案", 《百度文库HTTP://WENKU.BAIDU.COM/LINK?URL=DAAGA6EZIFWOGQXYU-U5MI_H2GFIPZCNUZX889YKR9QZEKW-OIYO0KIU_CDTLDKFYFONT0_J88ST9AEBTSED4OWG-GGVXJSE0GKLWORPNEI》 *
邹森: "网架结构的整体提升技术研究与应用", 《中国学位论文全文数据库》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108532767A (en) * 2018-05-09 2018-09-14 中建七局安装工程有限公司 Lifting construction method after space Reticulated dome is first pushed up by ring expansion
CN110185151A (en) * 2019-05-22 2019-08-30 三箭建设工程集团有限公司 More hydraulic device synchronization of jacking up construction methods of wide span steel roof frame

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Application publication date: 20151118

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