CN106121116A - Construction method of concave beam string - Google Patents
Construction method of concave beam string Download PDFInfo
- Publication number
- CN106121116A CN106121116A CN201610528084.5A CN201610528084A CN106121116A CN 106121116 A CN106121116 A CN 106121116A CN 201610528084 A CN201610528084 A CN 201610528084A CN 106121116 A CN106121116 A CN 106121116A
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- Prior art keywords
- construction
- construction method
- winding
- box beam
- stretch
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- 238000010276 construction Methods 0.000 title claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 23
- 239000000725 suspension Substances 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/14—Suspended roofs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the technical field of beam string construction, in particular to a construction method of a concave beam string, which comprises the following steps: A. installing a pipe truss at one end, then performing segmented construction of an upper chord box girder, wherein the construction sequence is that the construction is performed from one end to the other end, the upper chord box girder at one end is installed firstly, a roof secondary girder is inserted in the middle of the upper chord box girder for installation, and then the pipe truss at the other end, the upper chord box girder and the roof secondary girder are installed; B. installing a support rod; C. installing a lower-chord stay cable, wherein the stay cable comprises a main cable and a corner brace stay rod; in the tensioning process of the lower chord stay cable, the upper chord box girder can generate upward displacement and automatically separate from the temporary support frame, so that automatic unloading is realized. The construction method ensures that the tensioned unit is under the lateral restraint of the structures at two sides in the structural plane, thereby ensuring the plane stability of the beam string during tensioning construction and ensuring the structural rigidity in the construction stage.
Description
Technical field
The present invention relates to beam string technical field of construction, more specifically to a kind of concave shape beam string construction method.
Background technology
Tension string beam structure is the one large-span prestressed self-balance structure system that developed recently gets up, typically by winding up just
Property pressurized girder steel or steel truss, lower flexible prestressed cable and several struts between the two etc. three part composition, its
Basic loading characteristic is to make strut produce thrust upwards by stretch-draw lower edge high intensity drag-line so that the buckstay that winds up produce with
Internal force contrary under external load effect, reduces integrally-built deformation, improves the bearing capacity of structure.The letter of tension string beam structure system
Single, stress is clear and definite, version is various, given full play to the advantage of hard and soft bi-material, and manufacture, transport, construct simple and direct
Convenient, therefore more and more applied in large span venue class engineering.But existing concave shape tension string beam structure is because of it
Rope support system has the trend of plane instability so that it has certain defect in case history.Executing of the most existing beam string
Work operation causes the construction period longer.
Summary of the invention
The technical problem to be solved in the present invention is that providing a kind of ensures its planar stability during beam string stretching construction
Concave shape beam string construction method.
The present invention is achieved in that a kind of concave shape beam string construction method, comprises the following steps:
A. installing the tubular truss of one end, the section construction of the box beam that then carries out winding up, sequence of construction is to another from one end
End construction, first installs one end and winds up box beam, insert roofing secondary beam and install in the middle of box beam of winding up, then install other end tubular truss,
Box beam of winding up and roofing secondary beam；
B., strut is installed；
C. installing lower edge drag-line, described drag-line includes main rope and angle brace pull bar, and described main rope uses two ends once to open simultaneously
Drawing, the tension process of main rope falls behind two Pin and winds up the installation of box beam, and described stretch-draw is divided into some grades of stretch-draw, described angle brace pull bar to adopt
Put in place with single-ended single tension；
D. during lower edge cable tension, box beam of winding up can produce a displacement upwards, automatic and temporary support
Depart from, it is achieved automatically unload.
Further, the installation at high altitude temporary support form of box beam of winding up described in is that single-point type supports or gate type support, institute
Stating single-point type to be supported for being supported, by bracing frame and top frame, box beam of winding up, described gate type support is by two
Box beam of winding up is supported by support and frame head piece.
Further, the installation at high altitude temporary support form of box beam of winding up described in is gate type support.
Further, in described step C, before last two Pin main rope stretch-draw, other end tubular truss and roofing secondary beam should be complete
Portion installs and puts in place.
Further, in described step C, described drag-line also includes suspension cable and roof support rope, all uses single-ended one
Secondary stretch-draw puts in place.
Further, in described step C, described main rope uses dual control principle, force in control cable and deformation, controls target
For, the Suo Li after stretch-draw reaches theoretical stretching force.
Further, in described step C, described main rope uses Pyatyi stretch-draw, every grade of stretch-draw degree is 30%, 50%,
75%, 90% and 100%.
Compared with prior art, there is following beneficial effect: this construction method ensures to be in structural plan by tensioned unit
Under the sidewise restraint of interior structure on two sides, thus ensure its planar stability during beam string stretching construction, it is ensured that its rank of constructing
The rigidity of structure of section, especially final structure system are transformed into the rigidity of structure using state phase, each work from Construction State
Sequence forms cross construction, substantially reduces the structure integral construction duration, possesses good economic benefit.
Accompanying drawing explanation
The structural representation of Fig. 1: the embodiment of the present invention；
The strut side portion structure schematic diagram of Fig. 2: Fig. 1 embodiment.
In figure: 1-winds up box beam 2-roofing secondary beam 3-strut 4-main rope 5-suspension cable 6-angle brace pull bar
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.
A kind of concave shape beam string construction method, comprises the following steps:
A. installing the tubular truss (not shown) of one end, the section construction of the box beam 1 that then carries out winding up, sequence of construction is
From one end to the other side construct, one end is first installed and winds up box beam 1, in the middle of box beam 1 of winding up, insert roofing secondary beam 2 install, then pacify
Dress other end tubular truss, box beam of winding up 1 and roofing secondary beam 2；
B., strut 3 is installed；
C. installing lower edge drag-line, drag-line includes main rope 4 and angle brace pull bar 6, and main rope 4 uses two ends single tension simultaneously, main
The tension process of rope 4 falls behind two Pin and winds up the installation of box beam 1, and stretch-draw is divided into some grades of stretch-draw, angle brace pull bar 6 use single-ended once
Stretch-draw puts in place；
D. during lower edge cable tension, box beam of winding up 1 can produce a displacement upwards, automatic and temporary support
Depart from, it is achieved automatically unload.
The installation at high altitude temporary support form of box beam of winding up 1 is that single-point type supports or gate type support, and single-point type is supported for leading to
Crossing bracing frame and top frame to be supported box beam 1 of winding up, gate type support is to upper by two seat supports framves and frame head piece
String box beam 1 is supported.
The installation at high altitude temporary support form of box beam of winding up 1 is gate type support.It is advantageous that at the strong point bracing frame with
Beam string body construction Lothrus apterus, it is simple to strut 3 and the installation of lower edge drag-line.
In step C, before last two Pin main rope 4 stretch-draw, other end tubular truss and roofing secondary beam 2 should all be installed and put in place.
In step C, drag-line also includes suspension cable 5 and roof support rope (not shown), all uses and single-ended once opens
Move position to.
In step C, main rope 4 uses dual control principle, force in control cable and deformation, controls target and is, the Suo Lida after stretch-draw
To theoretical stretching force.
In step C, main rope 4 uses Pyatyi stretch-draw, and every grade of stretch-draw degree is 30%, 50%, 75%, 90% and 100%,
Stretch-draw is reasonable, and structure is firm.
This construction method ensures to be in structural plan under the sidewise restraint of structure on two sides by tensioned unit, thus ensures
Its planar stability during beam string stretching construction, it is ensured that the rigidity of structure of its construction stage, especially final structure system from
Construction State is transformed into the rigidity of structure using state phase, and each operation forms cross construction, substantially reduces structure overall
Construction period, possesses good economic benefit.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (7)
1. a concave shape beam string construction method, it is characterised in that comprise the following steps:
A. installing the tubular truss of one end, the section construction of the box beam that then carries out winding up, sequence of construction is for from one end to the other side to execute
Work, first installs one end and winds up box beam, insert roofing secondary beam and install in the middle of described box beam of winding up, then install other end tubular truss,
Box beam of winding up and roofing secondary beam；
B., strut is installed；
C. installing lower edge drag-line, described drag-line includes main rope and angle brace pull bar, and described main rope uses two ends single tension, institute simultaneously
The tension process stating main rope falls behind the installation of box beam of winding up described in two Pin, and described stretch-draw is divided into some grades of stretch-draw, and described angle brace draws
Bar uses single-ended single tension to put in place；
D. during lower edge cable tension, described in box beam of winding up can produce a displacement upwards, automatically and temporary support
Depart from, it is achieved automatically unload.
A kind of concave shape beam string construction method the most according to claim 1, it is characterised in that described in wind up the height of box beam
Empty assembled temporary support form is that single-point type supports or gate type support, and described single-point type is supported for by bracing frame and top frame
To winding up, box beam is supported, and described gate type support is for be supported box beam of winding up by two seat supports framves and frame head piece.
A kind of concave shape beam string construction method the most according to claim 2, it is characterised in that described in wind up the height of box beam
Empty assembled temporary support form is gate type support.
A kind of concave shape beam string construction method the most according to claim 1, it is characterised in that in described step C,
Before rear two Pin main rope stretch-draw, other end tubular truss and roofing secondary beam should all be installed and put in place.
A kind of concave shape beam string construction method the most according to claim 1, it is characterised in that in described step C, institute
State drag-line and also include suspension cable and roof support rope, all use single-ended single tension to put in place.
A kind of concave shape beam string construction method the most according to claim 1, it is characterised in that in described step C, institute
Stating main rope and use dual control principle, force in control cable and deformation, controlling target is, the Suo Li after stretch-draw reaches theoretical stretching force.
A kind of concave shape beam string construction method the most according to claim 1, it is characterised in that in described step C, institute
Stating main rope and use Pyatyi stretch-draw, every grade of stretch-draw degree is 30%, 50%, 75%, 90% and 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610528084.5A CN106121116B (en) | 2016-07-06 | 2016-07-06 | Construction method of concave beam string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610528084.5A CN106121116B (en) | 2016-07-06 | 2016-07-06 | Construction method of concave beam string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106121116A true CN106121116A (en) | 2016-11-16 |
| CN106121116B CN106121116B (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610528084.5A Active CN106121116B (en) | 2016-07-06 | 2016-07-06 | Construction method of concave beam string |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625530A (en) * | 2018-06-26 | 2018-10-09 | 上海天华建筑设计有限公司 | Tension string beam structure and its construction method |
| CN111535503A (en) * | 2020-05-08 | 2020-08-14 | 安徽伟宏钢结构集团股份有限公司 | Low-cost construction method for concave beam string |
| CN112411758A (en) * | 2020-10-28 | 2021-02-26 | 上海宝冶工程技术有限公司 | Three-section one-line quick installation method for truss string structure of large-span pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05187063A (en) * | 1992-01-09 | 1993-07-27 | Daiwa House Ind Co Ltd | Framework having large span and method for constructing the same |
| JP2005009231A (en) * | 2003-06-20 | 2005-01-13 | Shimizu Corp | Method of constructing steel structure |
| CN102296750A (en) * | 2011-05-31 | 2011-12-28 | 中铁十局集团建筑工程有限公司 | Wide span prestressed beam string structure and its construction method |
| CN102635186A (en) * | 2012-04-09 | 2012-08-15 | 浙江东南网架股份有限公司 | Double-layer spoke type space string-structure steel roof truss and pre-stressed tension method thereof |
| CN104110086A (en) * | 2014-05-23 | 2014-10-22 | 浙江东南网架股份有限公司 | Suspended dome and plane prestress combined structure, tensioning tool and construction method |
| CN104695715A (en) * | 2015-03-12 | 2015-06-10 | 中交一航局第四工程有限公司 | Construction method of beam string structure of roof |
-
2016
- 2016-07-06 CN CN201610528084.5A patent/CN106121116B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05187063A (en) * | 1992-01-09 | 1993-07-27 | Daiwa House Ind Co Ltd | Framework having large span and method for constructing the same |
| JP2005009231A (en) * | 2003-06-20 | 2005-01-13 | Shimizu Corp | Method of constructing steel structure |
| CN102296750A (en) * | 2011-05-31 | 2011-12-28 | 中铁十局集团建筑工程有限公司 | Wide span prestressed beam string structure and its construction method |
| CN102635186A (en) * | 2012-04-09 | 2012-08-15 | 浙江东南网架股份有限公司 | Double-layer spoke type space string-structure steel roof truss and pre-stressed tension method thereof |
| CN104110086A (en) * | 2014-05-23 | 2014-10-22 | 浙江东南网架股份有限公司 | Suspended dome and plane prestress combined structure, tensioning tool and construction method |
| CN104695715A (en) * | 2015-03-12 | 2015-06-10 | 中交一航局第四工程有限公司 | Construction method of beam string structure of roof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625530A (en) * | 2018-06-26 | 2018-10-09 | 上海天华建筑设计有限公司 | Tension string beam structure and its construction method |
| CN108625530B (en) * | 2018-06-26 | 2024-01-19 | 上海天华建筑设计有限公司 | Beam string structure and construction method thereof |
| CN111535503A (en) * | 2020-05-08 | 2020-08-14 | 安徽伟宏钢结构集团股份有限公司 | Low-cost construction method for concave beam string |
| CN112411758A (en) * | 2020-10-28 | 2021-02-26 | 上海宝冶工程技术有限公司 | Three-section one-line quick installation method for truss string structure of large-span pipe |
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| Publication number | Publication date |
|---|---|
| CN106121116B (en) | 2018-05-04 |
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Address after: 3801, 38 / F, Zhongjian science and engineering building, No. 3331, Weilan Coast Community Center Road, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: China Construction Science And Industry Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Futian District Che Kung Temple Binhe Tairan industry tipping 17 storey building No. 17A Patentee before: China Construction Steel Structure Corp.,Ltd. |