CN105113801A - Lifting method of large-span steel structure - Google Patents
Lifting method of large-span steel structure Download PDFInfo
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- CN105113801A CN105113801A CN201510432274.2A CN201510432274A CN105113801A CN 105113801 A CN105113801 A CN 105113801A CN 201510432274 A CN201510432274 A CN 201510432274A CN 105113801 A CN105113801 A CN 105113801A
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Abstract
The invention relates to a lifting method of a large-span steel structure. The method includes the steps of 1, preparing for construction; 2, positioning multiple machines; 3, performing assembly and grouping; 4, re-checking dimensions; 5, determining lift points and binding ropes; 6, checking for overall lifting; 7, aligning bolts with holes; 8, fastening all bolts; and 9, removing a lift. By using the lifting method, temporary scaffolds to be set up in the construction process of a steel structural roof are greatly decreased, and aerial work is greatly reduced; site space is made full use, thereby enabling convenience and quickness; reserving or removing a roof and even setting up scaffolds in the lifting process of indoor raking machinery of similar structure are not required, thereby enabling significant benefit; lifting machinery of small tonnage is satisfactory to construction in resource-deficient areas and is easy to popularize.
Description
Technical field
The invention belongs to mechanical erection field, particularly a kind of large-span steel hanging method.
Background technology
Large span three hinged arch steel roof truss and supporting scraper, be used widely in the engineering such as power plant, chemical fertilizer factory, cement plant, storage at home.This form structure has top hinge connection, crown hinge is high, span is large, roofing is steep, the number of components is many, adopt high-strength bolt connection, fabrication and installation required precision high, and difficulty of construction is large.When large span three hinged arch steel roof truss (more than 42m) and large span scraper (48m) engineering construction, the method of usual employing be aerial group to installation, a large amount of cripples to be set up during construction, need a large amount of work high above the ground, need large-tonnage lifting machine, bring the problems such as cost is high, security risk large, difficult quality guarantee thus.
Summary of the invention
The object of the invention is for the shortcoming existed in background technology and problem in addition improvement and bring new ideas, providing a kind of large-span steel hanging method, is a kind of more economical, safe, efficient construction method.
Technical scheme of the present invention is a kind of large-span steel hanging method, it is characterized in that comprising following steps:
(1) preparation of construction: the steel structure transportation completed by sectional making, to job site, carries out an acceptance inspection to structural member according to acceptance criteria;
(2) multimachine erect-position: select 4 automobile loop wheel machines, interval prepares to lift steel construction piece by afterbody orientation side by side;
(3) assembled group pair: more piece steel construction piece is fixedly connected with, is spliced into Eight characters arch;
(4) size is reviewed: the size of in-site measurement Eight characters arch steel structure, determines that it meets design drawing and related specifications standard;
(5) suspension centre is determined, rigging ties up: according to design drawing and related specifications standard, find loop wheel machine Heave Here accurately, tied up by rigging and put in place, installs fixing life security wire rope at steel work back;
(6) integral lifting inspection: steel work rises and is raised to liftoff 500mm place, the connection of each structural member of parking checking and position by 4 loop wheel machine cooperations, guarantees consistent with design drawing and related specifications standard;
(7) bolt is to hole: 4 loop wheel machines coordinate steel structure hoisting vertical, make whole bolt in place to hole;
(8) fastening whole bolt;
(9) loop wheel machine is removed: all loop wheel machine decoupling devices also remove rigging, and lifting completes.
In an embodiment wherein, described steel work is scraper.
In an embodiment wherein, described scraper span is 30m-60m.
In an embodiment wherein, described scraper span is 48m.
A kind of large-span steel hanging method, is characterized in that comprising following steps:
(1) preparation of construction: the steel structure transportation completed by sectional making, to job site, carries out an acceptance inspection to structural member according to acceptance criteria;
(2) multimachine erect-position: select 3 automobile loop wheel machines, interval prepares to lift steel construction piece by afterbody orientation side by side;
(3) assembled group pair: more piece steel construction piece is spliced into two groups, group internal fixtion connects, and is hinged, forms mobilizable Eight characters arch between two groups;
(4) size is reviewed: the size of in-site measurement Eight characters arch steel structure, determines that it meets design drawing and related specifications standard;
(5) suspension centre is determined, rigging ties up: according to design drawing and related specifications standard, find loop wheel machine Heave Here accurately, tied up by rigging and put in place, installs fixing life security wire rope at steel work back;
(6) integral lifting inspection: steel work rises and is raised to liftoff 500mm place, the connection of each structural member of parking checking and position by 3 loop wheel machine cooperations, guarantees consistent with design drawing and related specifications standard;
(7) bolt is to hole: 3 loop wheel machines coordinate steel structure hoisting vertical, make whole bolt in place to hole;
(8) fastening whole bolt;
(9) loop wheel machine remove: three loop wheel machines unload completely, after move, prepare the lifting of next Pin steel work;
(10) step (2)-(7) are repeated, make the 2nd Pin steel structure bolt in place to hole, middle loop wheel machine unloading reaches firm single Pin steel work and namely stops action, and the loop wheel machine decoupling device of two, left and right also removes rigging, lift all connecting elementss between two Pin steel work respectively, fastening whole bolt;
Repeat step (10), until install all single Pin steel work.
In an embodiment wherein, described steel work is three hinged arch steel roof truss.
In an embodiment wherein, the span of described three hinged arch steel roof truss is 30m-60m.
In an embodiment wherein, the span of described three hinged arch steel roof truss is 42m.
Beneficial effect of the present invention comprises: in steel roof truss work progress except lower channel sets up scaffold (the complete external scaffolding of the oblique plate-beam construction of concrete is reserved), without the need to setting up any construction scaffolding, decrease a large amount of cripples to set up, greatly reduce work high above the ground simultaneously; Make full use of space, place, under swash plate beam, stacking order puts the rerolled steel structure making completion, and three 25 tons of autocranes orderly erect-position side by side, due to every Pin case bay 6m, the group that erect-position once can complete one group of list Pin beam to and Components installation between installation in position and two Pin beams, convenient and swift; At assembled group of the indoor scraper equipment of analog structure form in integral hoisting, utilize simple frock to shorten lifting vertical distance, multiple spot, multimachine stand up and lift, and roofing top cover need not be reserved or remove, and more need not set up scaffold, remarkable benefit; Lifting machine tonnage is little, only needs 25 tons of autocranes, even if also can meet in the construction of scarcity of resources area, is easy to promote.As can be seen here, the technology of the present invention, change conventional aerial group to the construction method of installing, save a large amount of labours, decrease a large amount of scaffold buildings, reduce security risk, shorten the duration, economic benefit, social benefit are remarkable.
Accompanying drawing explanation
Fig. 1 is that in scraper hanging method, suspension centre selects schematic diagram.
Fig. 2 is that in three hinged arch steel roof truss hanging method, suspension centre selects schematic diagram.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.First-selected embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, the object of these embodiments is provided to be make to disclosure of the present invention more thoroughly comprehensively.
It should be noted that, when element is considered to " setting " on another element, it can be directly arrange or be connected on another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein are identical with the implication that those skilled in the art of the present invention understand usually with scientific terminology.The term used in manual, just in order to describe concrete enforcement object, is not intended to limit the present invention.
A kind of large-span steel hanging method, is characterized in that comprising following steps:
(1) preparation of construction: the steel structure transportation completed by sectional making, to job site, carries out an acceptance inspection to structural member according to acceptance criteria;
(2) multimachine erect-position: select 4 automobile loop wheel machines, interval prepares to lift steel construction piece by afterbody orientation side by side;
(3) assembled group pair: more piece steel construction piece is spliced into two groups, group internal fixtion connects, and is hinged, forms mobilizable Eight characters arch between two groups, as shown in Figure 1;
(4) size is reviewed: the size of in-site measurement splayed steel work, determines that it meets design drawing and related specifications standard;
(5) suspension centre is determined, rigging ties up: according to design drawing and related specifications standard, find loop wheel machine Heave Here accurately, rigging is tied up and puts in place, at steel work back, fixing life security wire rope is installed, according to the design feature of large-span steel, utilize PDMS modeling software, simulate single Pin steel work ground group to rear occupation of land size, single Pin steel work integral hoisting operating mode, parameters and the problem of meeting in scientific and effective analysis hoisting process, determine the erect-position point, crane effective operation radius etc. of single Pin steel work integral hoisting suspension centre, crane, as shown in Figure 1;
(6) integral lifting inspection: steel work rises and is raised to liftoff 500mm place, the connection of each structural member of parking checking and position by 4 loop wheel machine cooperations, guarantees consistent with design drawing and related specifications standard;
(7) bolt is to hole: 4 loop wheel machines coordinate steel structure hoisting vertical, make whole bolt in place to hole;
(8) fastening whole bolt;
(9) loop wheel machine is removed: all loop wheel machine decoupling devices also remove rigging, and lifting completes.
Especially, described steel work is scraper.
Preferably, described scraper span is 30m-60m.
Preferably, described scraper span is 48m.
A kind of large-span steel hanging method, is characterized in that described step is as follows:
(1) preparation of construction: the steel structure transportation completed by sectional making, to job site, carries out an acceptance inspection to structural member according to acceptance criteria;
(2) multimachine erect-position: select 3 automobile loop wheel machines, interval prepares to lift steel construction piece by afterbody orientation side by side;
(3) assembled group pair: more piece steel construction piece is spliced into two groups, group internal fixtion connects, and is hinged, forms mobilizable Eight characters arch between two groups;
(4) size is reviewed: the size of in-site measurement Eight characters arch steel structure, determines that it meets design drawing and related specifications standard;
(5) suspension centre is determined, rigging ties up: according to design drawing and related specifications standard, find loop wheel machine Heave Here accurately, rigging is tied up and puts in place, at steel work back, fixing life security wire rope is installed, according to the design feature of large-span steel, utilize PDMS modeling software, simulate single Pin steel work ground group to rear occupation of land size, single Pin steel work integral hoisting operating mode, parameters and the problem of meeting in scientific and effective analysis hoisting process, determine the erect-position point, crane effective operation radius etc. of single Pin steel work integral hoisting suspension centre, crane, as shown in Figure 2;
(6) integral lifting inspection: steel work rises and is raised to liftoff 500mm place, the connection of each structural member of parking checking and position by 3 loop wheel machine cooperations, guarantees consistent with design drawing and related specifications standard;
(7) bolt is to hole: 3 loop wheel machines coordinate steel structure hoisting vertical, make whole bolt in place to hole;
(8) fastening whole bolt;
(9) loop wheel machine remove: all loop wheel machines unload completely, after move, prepare the lifting of next Pin steel work;
(10) step (2)-(7) are repeated, make the 2nd Pin steel structure bolt in place to hole, middle loop wheel machine unloading reaches firm single Pin steel work and namely stops action, and the loop wheel machine decoupling device of two, left and right also removes rigging, lift all connecting elementss between two Pin joist steel structures respectively, fastening whole bolt;
Repeat step (10), until install all single Pin steel work.
Especially, described steel work is three hinged arch steel roof truss.
Preferably, the span of described three hinged arch steel roof truss is 30m-60m.
Preferably, the span of described three hinged arch steel roof truss is 42m.
Embodiment of the present invention is only the description carried out the preferred embodiment of the present invention; not design of the present invention and scope are limited; under the prerequisite not departing from design philosophy of the present invention; the various modification that in this area, engineers and technicians make technical scheme of the present invention and improvement; protection scope of the present invention all should be fallen into; the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (8)
1. a large-span steel hanging method, is characterized in that comprising following steps:
(1) preparation of construction: the steel structure transportation completed by sectional making, to job site, carries out an acceptance inspection to structural member according to acceptance criteria;
(2) multimachine erect-position: select 4 automobile loop wheel machines, interval prepares to lift steel construction piece by afterbody orientation side by side;
(3) assembled group pair: more piece steel construction piece is fixedly connected with, is spliced into Eight characters arch;
(4) size is reviewed: the size of in-site measurement Eight characters arch steel structure, determines that it meets design drawing and related specifications standard;
(5) suspension centre is determined, rigging ties up: according to design drawing and related specifications standard, find loop wheel machine Heave Here accurately, tied up by rigging and put in place, installs fixing life security wire rope at steel work back;
(6) integral lifting inspection: steel work rises and is raised to liftoff 500mm place, the connection of each structural member of parking checking and position by 4 loop wheel machine cooperations, guarantees consistent with design drawing and related specifications standard;
(7) bolt is to hole: 4 loop wheel machines coordinate steel structure hoisting vertical, make whole bolt in place to hole;
(8) fastening whole bolt;
(9) loop wheel machine is removed: all loop wheel machine decoupling devices also remove rigging, and lifting completes.
2. a kind of large-span steel hanging method according to claim 1, is characterized in that described steel work is scraper.
3. a kind of large-span steel hanging method according to claim 2, is characterized in that described scraper span is 30m-60m.
4. a kind of large-span steel hanging method according to claim 3, is characterized in that described scraper span is 48m.
5. a large-span steel hanging method, is characterized in that comprising following steps:
(1) preparation of construction: the steel structure transportation completed by sectional making, to job site, carries out an acceptance inspection to structural member according to acceptance criteria;
(2) multimachine erect-position: select 3 automobile loop wheel machines, interval prepares to lift steel construction piece by afterbody orientation side by side;
(3) assembled group pair: more piece steel construction piece is spliced into two groups, group internal fixtion connects, and is hinged, forms mobilizable Eight characters arch between two groups;
(4) size is reviewed: the size of in-site measurement Eight characters arch steel structure, determines that it meets design drawing and related specifications standard;
(5) suspension centre is determined, rigging ties up: according to design drawing and related specifications standard, find loop wheel machine Heave Here accurately, tied up by rigging and put in place, installs fixing life security wire rope at steel work back;
(6) integral lifting inspection: steel work rises and is raised to liftoff 500mm place, the connection of each structural member of parking checking and position by 3 loop wheel machine cooperations, guarantees consistent with design drawing and related specifications standard;
(7) bolt is to hole: 3 loop wheel machines coordinate steel structure hoisting vertical, make whole bolt in place to hole;
(8) fastening whole bolt;
(9) loop wheel machine remove: three loop wheel machines unload completely, after move, prepare the lifting of next Pin steel work;
(10) step (2)-(7) are repeated, make the 2nd Pin steel structure bolt in place to hole, middle loop wheel machine unloading reaches firm single Pin steel work and namely stops action, and the loop wheel machine decoupling device of two, left and right also removes rigging, lift all connecting elementss between two Pin steel work respectively, fastening whole bolt;
Repeat step (10), until install all single Pin steel work.
6. a kind of large-span steel hanging method according to claim 5, is characterized in that described steel work is three hinged arch steel roof truss.
7. a kind of large-span steel hanging method according to claim 6, is characterized in that the span of described three hinged arch steel roof truss is 30m-60m.
8. a kind of large-span steel hanging method according to claim 7, is characterized in that the span of described three hinged arch steel roof truss is 42m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510432274.2A CN105113801B (en) | 2015-07-22 | 2015-07-22 | A kind of large-span steel hanging method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510432274.2A CN105113801B (en) | 2015-07-22 | 2015-07-22 | A kind of large-span steel hanging method |
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| CN105113801A true CN105113801A (en) | 2015-12-02 |
| CN105113801B CN105113801B (en) | 2017-08-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524298A (en) * | 2017-08-11 | 2017-12-29 | 中国化学工程第六建设有限公司 | Gate-type scraper construction method of installation applied to highlands |
| CN114775800A (en) * | 2022-05-24 | 2022-07-22 | 浙江精工钢结构集团有限公司 | Large-span arch-shaped steel structure non-support mounting method |
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| CN102777047A (en) * | 2012-08-22 | 2012-11-14 | 河北二十冶工程技术有限公司 | Assembling and splicing installation method of large-span tube-truss roof beam |
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2015
- 2015-07-22 CN CN201510432274.2A patent/CN105113801B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102777047A (en) * | 2012-08-22 | 2012-11-14 | 河北二十冶工程技术有限公司 | Assembling and splicing installation method of large-span tube-truss roof beam |
Non-Patent Citations (4)
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| 徐乃祥: ""全装配半圆三铰拱的运输和吊装"", 《建筑技术》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524298A (en) * | 2017-08-11 | 2017-12-29 | 中国化学工程第六建设有限公司 | Gate-type scraper construction method of installation applied to highlands |
| CN107524298B (en) * | 2017-08-11 | 2019-05-07 | 中国化学工程第六建设有限公司 | Gate-type scraper construction method of installation applied to highlands |
| CN114775800A (en) * | 2022-05-24 | 2022-07-22 | 浙江精工钢结构集团有限公司 | Large-span arch-shaped steel structure non-support mounting method |
| CN114775800B (en) * | 2022-05-24 | 2023-06-27 | 浙江精工钢结构集团有限公司 | Large-span arch steel structure unsupported installation method |
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| CN105113801B (en) | 2017-08-29 |
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