CN101701493A - Template support system of box type girder cast-in-place concrete floor plate of steel frame construction - Google Patents
Template support system of box type girder cast-in-place concrete floor plate of steel frame construction Download PDFInfo
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- CN101701493A CN101701493A CN200910154044A CN200910154044A CN101701493A CN 101701493 A CN101701493 A CN 101701493A CN 200910154044 A CN200910154044 A CN 200910154044A CN 200910154044 A CN200910154044 A CN 200910154044A CN 101701493 A CN101701493 A CN 101701493A
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Abstract
The invention discloses a template support system of a box type girder cast-in-place concrete floor plate of steel frame construction, which comprises a box type section girder, a bracket, horizontal scaffold steel pipes, vertical scaffold steel pipes, steel pipe fasteners, a wood template, tie bar steel pipes and arris wood, wherein the two horizontal scaffold steel pipes and a plurality of vertical scaffold steel pipes are connected by the steel pipe fasteners to form scaffold steel pipe girders; more than two scaffold steel pipe girders are connected with more than two tie bar steel pipes by the steel pipe fasteners; the bracket is welded to the box type section girder; the lower ends of the scaffold steel pipe girders are arranged at the bracket, the arris wood is arranged at the upper ends of the scaffold steel pipe girders, and the wood template is arranged on the arris wood; the bracket adopts angle iron of 100*10 and has the length of 200mm; the lengths of welding seams of a limb back and a limb tip of the bracket and the box type section girder are not smaller than 100mm respectively, and the height of the welding seams is 6mm. The invention adopts the wood template, has optional manufacture and assembly, omits the push and support of the steel pipes and reduces scene workload. The template support system can carry out multilayer stereo operation, thereby accelerating the construction progress.
Description
Technical field
The present invention relates to building field, relate in particular to a kind of formwork bracing system of steel framed structure box type girder cast-in-place concrete floor.
Background technology
Multi-rise building adopts steel work, has from heavy and light, advantage such as anti-seismic performance is good, speed of application is fast, environment pollution is little, and China's multi-rise building adopts steel work more and more general.What steel framed structure application at present was more is common cast-in-place concrete floor and profiled sheet-cast-in-situ concrete composite floor.
But also there is following problem in it:
1) common cast-in-place concrete floor need be installed a large amount of the templates supports in flooring, and construction speed is slow.
2) profiled sheet need be provided with the end anchor firmware, has increased the complexity of construction.
3) if will consider the compound action of profiled sheet and concrete floor, removing needs to adopt special shape or special tectonic, to the durability of steel plate with prevent fires requirement is also arranged; Otherwise the template of steel plate during just as floor slab construction is promptly ineffective after construction is finished, and needs to consume great deal of steel.
4) profiled sheet can not bear separately and not tie hard concrete load and working load, need establish and vertically support between striding temporarily, comprises sub-truss and shores in the steel pipe of flooring, has slowed down construction speed, increases Master Cost.
Summary of the invention
The objective of the invention is to overcome the prior art deficiency, a kind of formwork bracing system of steel framed structure box type girder cast-in-place concrete floor is provided.
The formwork bracing system of steel framed structure box type girder cast-in-place concrete floor comprises box-type section beam, bracket, horizontal scaffold member steel pipe, vertical scaffolding steel pipe, steel tube fastener, wooden form, tie-rod steel pipe, stupefied wood; 2 horizontal scaffold member steel pipes and many vertical scaffolding steel pipes are connected to form the scaffolding steel pipe truss by steel tube fastener, the above scaffolding steel pipe truss of 2 Pin is connected by steel tube fastener with 2 above tie-rod steel pipes, bracket is welded in the box-type section beam, scaffolding steel pipe truss lower end places bracket, the stupefied wood of scaffolding steel pipe truss upper ends, place wooden form on the stupefied wood, bracket adopts 100 * 10 angle steel, 200 millimeters of length, the limb back of the body of bracket, the fusion length of acropodium and box-type section beam respectively is not less than 100 millimeters, weld bead height is 6 millimeters, acropodium at the bottom of the box-type section beam 20 millimeters.
Described two adjacent box-type section case bays are during less than 3 meters, and adjacent two Pin scaffolding steel pipe truss spaces are not more than 2.5 meters; When two adjacent box-type section case bays were 3 meters to 5 meters, adjacent two Pin scaffolding steel pipe truss spaces were not more than 0.9 meter; When two adjacent box-type section case bays were 5 meters to 7 meters, adjacent two Pin scaffolding steel pipe truss spaces were not more than 0.5 meter.The aspect ratio box-type section depth of beam of described scaffolding steel pipe truss is little 10 centimetres to 12 centimetres.Place the spacing of stupefied wood on the described horizontal scaffold member steel pipe at 20 centimetres to 30 centimetres.The upper surface of described wooden form flushes with the box-type section top surface of the beam.
The present invention compares the beneficial effect that has with background technology:
1) adopt wooden form, it is random to make assembly unit.
2) save steel pipe and shored, reduced the site work amount.
3) template is supported on the bottom flange of beam among the present invention, for various work post operations provide spacious working platform, can the layer stereo operation, and accelerating construction progress.
Description of drawings
Fig. 1 is the sectional drawing of support arrangement;
Fig. 2 is the plan view of support arrangement;
Among the figure: box-type section beam 1, bracket 2, horizontal scaffold member steel pipe 3, vertical scaffolding steel pipe 4, steel tube fastener 5, wooden form 6, tie-rod steel pipe 7, stupefied wooden 9.
The specific embodiment
The formwork bracing system of steel framed structure box type girder cast-in-place concrete floor comprises box-type section beam 1, bracket 2, horizontal scaffold member steel pipe 3, vertical scaffolding steel pipe 4, steel tube fastener 5, wooden form 6, tie-rod steel pipe 7, stupefied wooden 9; 2 horizontal scaffold member steel pipes 3 are connected to form scaffolding steel pipe truss 8 with many vertical scaffolding steel pipes 4 by steel tube fastener 5, the above scaffolding steel pipe truss 8 of 2 Pin is connected by steel tube fastener 5 with 2 above tie-rod steel pipes 7, bracket 2 is welded in box-type section beam 1, scaffolding steel pipe truss 8 lower ends place bracket 2, scaffolding steel pipe truss 8 upper ends stupefied wooden 9, place wooden form 6 on stupefied wooden 9, bracket 2 adopts 100 * 10 angle steel, 200 millimeters of length, the limb back of the body of bracket 2, the limb shoulder respectively is not less than 100 millimeters with the fusion length of box-type section beam 1, weld bead height is 6 millimeters, acropodium at the bottom of the box-type section beam 20 millimeters.
Described two adjacent box-type section beam 1 spacings are during less than 3 meters, and adjacent two Pin scaffolding steel pipe truss, 8 spacings are not more than 2.5 meters; When two adjacent box-type section beam 1 spacings were 3 meters to 5 meters, adjacent two Pin scaffolding steel pipe truss, 8 spacings were not more than 0.9 meter; When two adjacent box-type section beam 1 spacings were 5 meters to 7 meters, adjacent two Pin scaffolding steel pipe truss, 8 spacings were not more than 0.5 meter.The aspect ratio box-type section beam 1 of described scaffolding steel pipe truss 8 is highly little 10 centimetres to 12 centimetres.Place stupefied wooden 9 spacing on the described horizontal scaffold member steel pipe 3 at 20 centimetres to 30 centimetres.The upper surface of described wooden form 6 flushes with box-type section beam 1 end face.
Embodiment.Be provided with a steel framed structure, box-type section case bay 3m, scaffolding steel pipe rise of a truss 0.4m, spacing 2.5m.Wooden form thickness 18mm, stupefied wood adopts 50mm * 100mm, stupefied wooden spacing 300mm, modulus of elasticity of wood 10000N/mm
2, flexural strength 13N/mm
2The scaffolding steel pipe truss adopts
The Q235 steel of 48 * 2mm, modulus of elasticity 2.06 * 10
5N/mm
2, intensity 215N/mm
2The dead load standard value is: template deadweight 0.3kN/m
2, the thick ordinary concrete plate of 150mm 3.6kN/m
2The mobile load standard value is: constructor and equipment 2.5kN/m
2During the supporting capacity checking computations, the design load on the template is 1.2 * 3.9+1.4 * 2.5=8.18kN/m
2, template is the one-way slabs of span 2.5m, gets the wide strip of 0.3m, its maximum stress in bend is
Being subjected to line load on the scaffolding steel pipe truss is 8.18 * 2.5=20.45kN/m, and span 3m bears moment of flexure by the horizontal scaffold member steel pipe, maximum stress
Vertical scaffolding steel pipe bears shearing, maximum stress
During deformation analysis, disregard shear strain, the load of template is 0.3+3.6=3.9 kN/m
2, the template maximum defluxion is
Being subjected to line load on the scaffolding steel pipe truss is 3.9 * 2.5=9.75kN/m, scaffolding steel pipe truss maximum defluxion
All meet the demands.
Claims (5)
1. the formwork bracing system of a steel framed structure box type girder cast-in-place concrete floor is characterized in that comprising box-type section beam (1), bracket (2), horizontal scaffold member steel pipe (3), vertical scaffolding steel pipe (4), steel tube fastener (5), wooden form (6), tie-rod steel pipe (7), stupefied wood (9); 2 horizontal scaffold member steel pipes (3) are connected to form scaffolding steel pipe truss (8) with many vertical scaffolding steel pipes (4) by steel tube fastener (5), the above scaffolding steel pipe truss of 2 Pin (8) are connected by steel tube fastener (5) with 2 above tie-rod steel pipes (7), bracket (2) is welded in box-type section beam (1), scaffolding steel pipe truss (8) lower end places bracket (2), the stupefied wood of scaffolding steel pipe truss (8) upper ends (9), stupefied wood (9) is gone up and is placed wooden form (6), bracket (2) adopts 100 * 10 angle steel, 200 millimeters of length, the limb back of the body of bracket (2), the fusion length of acropodium and box-type section beam (1) respectively is not less than 100 millimeters, weld bead height is 6 millimeters, acropodium at the bottom of the box-type section beam 20 millimeters.
2. the formwork bracing system of a kind of steel framed structure box type girder cast-in-place concrete floor according to claim 1, when it is characterized in that described two adjacent box-type section beam (1) spacings less than 3 meters, adjacent two Pin scaffolding steel pipe truss (8) spacings are not more than 2.5 meters; When two adjacent box-type section beam (1) spacings were 3 meters to 5 meters, adjacent two Pin scaffolding steel pipe truss (8) spacings were not more than 0.9 meter; When two adjacent box-type section beam (1) spacings were 5 meters to 7 meters, adjacent two Pin scaffolding steel pipe truss (8) spacings were not more than 0.5 meter.
3. the formwork bracing system of a kind of steel framed structure box type girder cast-in-place concrete floor according to claim 1 is characterized in that the aspect ratio box-type section beam (1) of described scaffolding steel pipe truss (8) is highly little 10 centimetres to 12 centimetres.
4. the formwork bracing system of a kind of steel framed structure box type girder cast-in-place concrete floor according to claim 1 is characterized in that the last spacing of stupefied wood (9) of placing of described horizontal scaffold member steel pipe (3) is at 20 centimetres to 30 centimetres.
5. the formwork bracing system of a kind of steel framed structure box type girder cast-in-place concrete floor according to claim 1 is characterized in that the upper surface of described wooden form (6) flushes with box-type section beam (1) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101540449A CN101701493B (en) | 2009-10-22 | 2009-10-22 | Template support system of box type girder cast-in-place concrete floor plate of steel frame construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101540449A CN101701493B (en) | 2009-10-22 | 2009-10-22 | Template support system of box type girder cast-in-place concrete floor plate of steel frame construction |
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| Publication Number | Publication Date |
|---|---|
| CN101701493A true CN101701493A (en) | 2010-05-05 |
| CN101701493B CN101701493B (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101540449A Expired - Fee Related CN101701493B (en) | 2009-10-22 | 2009-10-22 | Template support system of box type girder cast-in-place concrete floor plate of steel frame construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711112A (en) * | 2012-10-09 | 2014-04-09 | 中国葛洲坝集团股份有限公司 | Combined type bailey frame load-bearing shelving used for pouring large-span concrete beam |
| CN110005193A (en) * | 2019-03-27 | 2019-07-12 | 中建三局集团有限公司 | A kind of shuttering supporting mechanism of high-precision concrete roof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100537975C (en) * | 2007-07-31 | 2009-09-09 | 龙信建设集团有限公司 | The job practices of inclined drawing steel truss high-supported formwork structure system |
| CN201206327Y (en) * | 2008-05-28 | 2009-03-11 | 霍起家 | Preform formwork of cast-in-place concrete rib floor |
| CN101560829B (en) * | 2008-10-27 | 2011-01-26 | 杭州二建建设有限公司 | Buckled type steel pipe scaffold formwork support with large height-width ratio |
-
2009
- 2009-10-22 CN CN2009101540449A patent/CN101701493B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711112A (en) * | 2012-10-09 | 2014-04-09 | 中国葛洲坝集团股份有限公司 | Combined type bailey frame load-bearing shelving used for pouring large-span concrete beam |
| CN103711112B (en) * | 2012-10-09 | 2015-09-02 | 中国葛洲坝集团股份有限公司 | Build large-span concrete beam combined type Bailey bracket bearing bent frame |
| CN110005193A (en) * | 2019-03-27 | 2019-07-12 | 中建三局集团有限公司 | A kind of shuttering supporting mechanism of high-precision concrete roof |
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| Publication number | Publication date |
|---|---|
| CN101701493B (en) | 2011-08-31 |
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Effective date of registration: 20110713 Address after: 310027 Hangzhou, Zhejiang Province, Xihu District, Zhejiang Road, No. 38, No. Applicant after: Zhejiang University Co-applicant after: Zhejiang University of Finance & Economics Address before: 310027 Hangzhou, Zhejiang Province, Zhejiang Road, No. 38 Applicant before: Zhejiang University |
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