CN103276848B - Open-web flat beam, steel concrete flitch girder and construction method thereof - Google Patents
Open-web flat beam, steel concrete flitch girder and construction method thereof Download PDFInfo
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- CN103276848B CN103276848B CN201310231405.1A CN201310231405A CN103276848B CN 103276848 B CN103276848 B CN 103276848B CN 201310231405 A CN201310231405 A CN 201310231405A CN 103276848 B CN103276848 B CN 103276848B
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Abstract
The present invention discloses a kind of open-web flat beam, steel concrete flitch girder and construction method thereof, mainly for a kind of open-web flat beam is provided and apply this empty stomach plate-girder form steel concrete flitch girder.Open-web flat beam of the present invention, comprises some webs, the top flange plate be connected with described web respectively and bottom wing listrium, and described web arranges along the length direction spacing of described upper and lower frange plate.The present invention, is widely used, and economic performance is good, and easy construction.
Description
Technical field
The present invention relates to a kind of open-web flat beam, steel concrete flitch girder and construction method thereof.
Background technology
In steel building, girder steel is important supporting member, adopts at present the solid web section forms such as i iron, hot rolled H-shaped, welded H section steel more.On solid web section form basis, successively developed Honeycombed section beam both at home and abroad, Honeycomb Beam is the novel beam again welding and combine of shifting one's position after cutting by certain broken line on H type web.Honeycomb Beam significantly improves the Rigidity and strength of beam, and the situation underbeam alleviated in beam dead weight can bear larger load, is applied to larger span, saves steel, transport mounting cost, has very considerable economic worth.The hole of Honeycomb Beam web is not only attractive in appearance but also be convenient to lay pipeline, can reduce building floor height, reduce construction cost on the whole.According to foreign data introduction, replace solid web girder can save steel 25% ~ 50% with Honeycomb Beam, save paint and transport mounting cost 15% ~ 34.6%.But the hot rolled H-shaped processing and fabricating of the many employings of Honeycomb Beam forms at present, and the specification Honeycomb Beam edge of a wing thickness and the web thickness that are limited to H profile steel can not carry out Optimum Matching according to stressed needs, and processing relative complex.
In structure of steel structure building, building cover structure many employings profiled sheet Combined concrete plate-girder, this plate-girder system has short construction period, and field operation is convenient, and building integral is better than the advantages such as prefabricated assembled flooring; But also have floor structure height large, the out-of-flatness of superstructure soffit need do furred ceiling, fire prevention process at the bottom of profiled sheet plate, need be done, the shortcomings such as fire retardant anticorrosion expense is high.And in highrise building, due to equipment pipe laying and the longitudinal and transverse frame crossbeam on layer top, all need certain floor height, in Designing Structures of High Rising Buildings, often because of floor height restriction or the requirement increasing the aspects such as clear height, need the depth of section as far as possible reducing beam, traditional building cover structure can not meet the demands more greatly, in order to meet engineering demand just in the urgent need to development of new Structural Floor System due to structure height.
Summary of the invention
For the problems referred to above, the object of the invention one: provide one to be widely used, economic performance is good, while succession Honeycomb Beam advantage, has better economy, and processes easy open-web flat beam.
The object of the invention two: provide one to be widely used, comprehensive benefit is good, while inheriting tradition profiled sheet combination building advantage, and have that structure height is little, the smooth construction method without the need to furred ceiling, fire retardant anticorrosion cost saving, room layout Combined concrete slab and girder and this structure flexibly of superstructure soffit.
For achieving the above object, open-web flat beam of the present invention, comprises some webs, the top flange plate be connected with described web respectively and bottom wing listrium, and described web arranges along the length direction spacing of described upper and lower frange plate.
Further, web is one or more in H profile steel, drum steel or box steel.
Especially, the width of described bottom wing listrium is more than or equal to the width of top flange plate.
Further, described web is equidistantly arranged in parallel.
Particularly, described web plate section direction is arranged along perpendicular to upper and lower frange plate length direction.
Preferably, described web and described upper and lower frange plate connect by being weldingly connected.
For achieving the above object, steel concrete flitch girder of the present invention, comprise open-web flat beam and be overlapped on precast concrete plank and the concrete folding layer of the symmetrical both sides of described open-web flat beam, described open-web flat beam is above-mentioned open-web flat beam.
Further, described precast concrete plank is overlapped on the two ends of the bottom flange steel plate of girder steel.
Further, also comprise the two-way concrete slab net of building in concrete folding layer, the hole on the gap between described web or described web.
For achieving the above object, the construction method of steel concrete flitch girder of the present invention, preparation open-web flat beam, described open-web flat beam is above-mentioned open-web flat beam, precast concrete plank is laid in the bilateral symmetry of the bottom wing listrium of described open-web flat beam, after precast concrete plank has been laid, colligation two-way concrete slab net, after the colligation of two-way concrete slab net completes, cast-in-situ concrete overlapping layers forms Combined concrete plate-girder.
1, open-web flat beam of the present invention, the hole of web is not only attractive in appearance but also be convenient to lay pipeline, can reduce building floor height, reduce construction cost on the whole.
2, open-web flat beam of the present invention is compared with solid web girder, and deadweight is lighter, supporting capacity is higher; Compared with composite roof truss, architectural construction is simpler, and antiseptic property is better.
3, open-web flat beam of the present invention is compared with Honeycomb Beam, and easy to process, steel using amount is economized.
4, steel concrete flitch girder of the present invention has short construction period, and field operation is convenient, and building integral is better than the advantages such as prefabricated assembled flooring.
5, the hole of steel concrete flitch girder web of the present invention is not only attractive in appearance but also be convenient to lay pipeline, can reduce building floor height, reduce construction cost on the whole.
6, steel concrete flitch girder structure height of the present invention is less, in building height one timing, can increase building storey, in building floor height and the number of plies one timing, can reduce building height.
7, to have superstructure soffit smooth without the need to the many advantages such as furred ceiling, fire retardant anticorrosion cost saving, room layout be flexible for steel concrete flitch girder of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of the web employing i shaped steel of open-web flat beam of the present invention;
Fig. 2 is the lateral view of Fig. 1;
Fig. 3 is the elevation of Fig. 1;
Lateral view when Fig. 4 is the web employing box-type section of open-web flat beam of the present invention;
Fig. 5 is steel concrete flitch girder schematic diagram of the present invention;
Fig. 6 is the lateral view of Fig. 5.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.
Embodiment 1
As shown in Figures 1 to 4, the present embodiment open-web flat beam, is welded by top flange steel plate 11, bottom flange steel plate 12, shape steel web 13.
Choose upper bottom flange steel plate width, thickness and grade of steel according to designing requirement, choose the cross section of shape steel web, length, spacing and grade of steel according to designing requirement.In factory, cut out bottom flange steel plate to after hot rolled steel plate line setting, web shaped steel is cut into segment according to design length.After being located on the web of top flange by web shaped steel, welding, after having welded, for ease of web shaped steel and bottom flange Plate Welding, turns over and turn 90 degrees, and welds after bottom flange steel plate positions.
The present invention can be used as the more economical replacement scheme of one of Honeycomb Beam, can be widely used in the engineerings such as bridge, factory building, office building, steamer and crane bridge.
As illustrated in Figures 5 and 6, the present embodiment steel concrete flitch girder, comprises open-web flat beam 1, precast concrete plank 2, two-way concrete slab net 3 and cast-in-situ concrete overlapping layers 4.
Choose upper bottom flange steel plate width, thickness, grade of steel according to designing requirement, choose the cross section of shape steel web, length, spacing and grade of steel according to designing requirement.In factory, cut out bottom flange steel plate to after hot rolled steel plate line setting, web shaped steel is cut into segment according to design length.After being located on the web of top flange by web shaped steel, welding, after having welded, for ease of web shaped steel and bottom flange Plate Welding, turns over and turn 90 degrees, and after bottom flange steel plate positions, welding obtains open-web flat beam 1.Open-web flat beam 1, at the construction field (site) after installation in position, lays precast concrete plank 2 in open-web flat beam bottom flange bilateral symmetry.After precast concrete plank 2 has been laid, on-the-spot colligation two-way concrete slab net 3.After two-way concrete slab net 3 colligation completes, cast-in-situ concrete overlapping layers 4 forms Novel steel Combined concrete plate-girder floor system.
A kind of Novel steel Combined concrete plate-girder of the present invention as the better replacement scheme of a kind of comprehensive benefit of traditional profiled sheet flitch girder, can be able to be widely used in structure of steel structure building building cover structure.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should define with claim is as the criterion.
Claims (2)
1. the construction method of a steel concrete flitch girder, this steel concrete flitch girder comprises open-web flat beam, be overlapped on precast concrete plank and the concrete folding layer of the symmetrical both sides of described open-web flat beam and build the two-way concrete slab net in concrete folding layer, described open-web flat beam comprises some webs, the top flange plate be connected with described web respectively and bottom wing listrium, described web is along on described, the length direction of bottom wing listrium is equidistantly arranged in parallel, it is characterized in that: described web is H profile steel, one or more in drum steel or box steel, web and described on, bottom wing listrium connects by being weldingly connected, this construction method comprises the following steps:
A) prepare open-web flat beam: choose upper bottom flange steel plate width, thickness, grade of steel according to designing requirement, choose the cross section of shape steel web, length, spacing and grade of steel according to designing requirement; In factory, cut out bottom flange steel plate to after hot rolled steel plate line setting, web shaped steel is cut into segment according to design length; After being located on the web of top flange by web shaped steel, welding, after having welded, for ease of web shaped steel and bottom flange Plate Welding, turns over and turn 90 degrees, and after bottom flange steel plate positions, welding obtains open-web flat beam;
B) open-web flat beam is at the construction field (site) after installation in position, at two ends, open-web flat beam bottom flange symmetrical laying precast concrete plank, after precast concrete plank has been laid, on-the-spot colligation two-way concrete slab net, after the colligation of two-way concrete slab net completes, cast-in-situ concrete overlapping layers forms Novel steel Combined concrete plate-girder floor system.
2. the construction method of steel concrete flitch girder according to claim 1, is characterized in that: described web plate section direction is arranged along perpendicular to upper and lower frange plate length direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310231405.1A CN103276848B (en) | 2013-06-09 | 2013-06-09 | Open-web flat beam, steel concrete flitch girder and construction method thereof |
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| CN201310231405.1A CN103276848B (en) | 2013-06-09 | 2013-06-09 | Open-web flat beam, steel concrete flitch girder and construction method thereof |
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| CN103276848B true CN103276848B (en) | 2016-04-27 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109972781A (en) * | 2019-01-23 | 2019-07-05 | 贵州建工集团第一建筑工程有限责任公司 | A kind of combination layer beam and its manufacturing method |
| CN111058569B (en) * | 2019-12-27 | 2021-09-10 | 西安理工大学 | Multi-steel-beam and concrete combined super-flat beam and construction method of flat beam |
| CN111622403B (en) * | 2020-05-22 | 2021-07-09 | 江苏科技大学 | Cold-formed thin-wall section steel composite floor and modular prefabrication and assembly method thereof |
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| CN101215912A (en) * | 2008-01-10 | 2008-07-09 | 同济大学 | Double corrugated web plate steel box girder |
| CN101280547A (en) * | 2007-10-18 | 2008-10-08 | 清华大学 | Corrugated steel web box girder with steel-concrete combined board lower wing edges |
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| KR100969235B1 (en) * | 2009-05-15 | 2010-07-09 | 주식회사 제일테크노스 | Reduced thickness type steel beam and manufacturing method of the same |
| CN203347076U (en) * | 2013-06-09 | 2013-12-18 | 中冶建筑研究总院有限公司 | Steel and concrete flitch beam |
| CN203347105U (en) * | 2013-06-09 | 2013-12-18 | 中冶建筑研究总院有限公司 | Open-web flat beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5020267B2 (en) * | 2009-01-22 | 2012-09-05 | 中国電力株式会社 | Steel structural material |
| KR101011220B1 (en) * | 2010-07-02 | 2011-01-26 | 연세대학교 산학협력단 | Steel girder |
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- 2013-06-09 CN CN201310231405.1A patent/CN103276848B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280547A (en) * | 2007-10-18 | 2008-10-08 | 清华大学 | Corrugated steel web box girder with steel-concrete combined board lower wing edges |
| CN101215912A (en) * | 2008-01-10 | 2008-07-09 | 同济大学 | Double corrugated web plate steel box girder |
| CN201296988Y (en) * | 2008-02-29 | 2009-08-26 | 中冶集团建筑研究总院 | Honeycomb-typed beam deep-slab floor structure form and construction |
| KR100969235B1 (en) * | 2009-05-15 | 2010-07-09 | 주식회사 제일테크노스 | Reduced thickness type steel beam and manufacturing method of the same |
| CN203347076U (en) * | 2013-06-09 | 2013-12-18 | 中冶建筑研究总院有限公司 | Steel and concrete flitch beam |
| CN203347105U (en) * | 2013-06-09 | 2013-12-18 | 中冶建筑研究总院有限公司 | Open-web flat beam |
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Inventor after: Yue Qingrui Inventor after: Hou Zhaoxin Inventor after: Gong Chao Inventor after: Zheng Yun Inventor after: Yang Yiting Inventor after: Qiu Linbo Inventor after: Zhang Xiuxiang Inventor before: Hou Zhaoxin Inventor before: Gong Chao Inventor before: Yang Yiting Inventor before: Qiu Linbo Inventor before: Zhang Xiuxiang |
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