CN105064697A - Roof grid elevating method - Google Patents
Roof grid elevating method Download PDFInfo
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- 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
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- lifting
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- grid structure
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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
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%.
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 |
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| CN105064697A true CN105064697A (en) | 2015-11-18 |
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Family Applications (1)
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| CN201510420050.XA Pending CN105064697A (en) | 2015-07-15 | 2015-07-15 | Roof grid elevating method |
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| CN (1) | CN105064697A (en) |
Cited By (7)
| 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 |
| CN110273478A (en) * | 2019-06-27 | 2019-09-24 | 巨匠建设集团股份有限公司 | A kind of rack entirety lift structure |
| CN111444650A (en) * | 2020-03-25 | 2020-07-24 | 中国十七冶集团有限公司 | Integral lifting construction method for large-span net rack roof structure |
| CN111877790A (en) * | 2020-07-01 | 2020-11-03 | 上海建工集团股份有限公司 | Construction method for integrally jacking and replacing new and old steel roof |
| CN112081250A (en) * | 2020-08-03 | 2020-12-15 | 上海建工一建集团有限公司 | House integral lifting system and house integral lifting method |
| CN112081248A (en) * | 2020-08-03 | 2020-12-15 | 上海建工一建集团有限公司 | Roof integral lifting system and roof integral lifting method |
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| 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 |
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| JPH04111829A (en) * | 1990-08-30 | 1992-04-13 | Shimizu Corp | Method for constructing large-span roof |
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Cited By (9)
| 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 |
| CN110273478A (en) * | 2019-06-27 | 2019-09-24 | 巨匠建设集团股份有限公司 | A kind of rack entirety lift structure |
| CN111444650A (en) * | 2020-03-25 | 2020-07-24 | 中国十七冶集团有限公司 | Integral lifting construction method for large-span net rack roof structure |
| CN111444650B (en) * | 2020-03-25 | 2023-01-24 | 中国十七冶集团有限公司 | Integral lifting construction method for large-span net rack roof structure |
| CN111877790A (en) * | 2020-07-01 | 2020-11-03 | 上海建工集团股份有限公司 | Construction method for integrally jacking and replacing new and old steel roof |
| CN111877790B (en) * | 2020-07-01 | 2021-11-09 | 上海建工集团股份有限公司 | Construction method for integrally jacking and replacing new and old steel roof |
| CN112081250A (en) * | 2020-08-03 | 2020-12-15 | 上海建工一建集团有限公司 | House integral lifting system and house integral lifting method |
| CN112081248A (en) * | 2020-08-03 | 2020-12-15 | 上海建工一建集团有限公司 | Roof integral lifting system and roof integral lifting method |
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Application publication date: 20151118 |
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| WD01 | Invention patent application deemed withdrawn after publication |