CN100395410C - Grooved steel-concrete combination beam - Google Patents
Grooved steel-concrete combination beam Download PDFInfo
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- CN100395410C CN100395410C CNB2006100021395A CN200610002139A CN100395410C CN 100395410 C CN100395410 C CN 100395410C CN B2006100021395 A CNB2006100021395 A CN B2006100021395A CN 200610002139 A CN200610002139 A CN 200610002139A CN 100395410 C CN100395410 C CN 100395410C
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- steel box
- box beam
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Abstract
The present invention relates to a grooved steel-concrete combined beam which belongs to a range of bridge bracing components which are applied to an urban track bridge, a railway bridge, and a highway bridge thereof. The grooved steel-concrete combined beam is composed of an open-top steel box beam, concrete poured in the steel box beam and an anti-sheared connector melted and welded in the steel box beam, wherein the open-top steel box beam is composed of a bottom plate and a web plate, and the cross-section of the open-top steel box beam adopts a U shape or a W shape. The steel beam and the concrete are integrated by the anti-sheared connector into a whole and the anti-compression property of the concrete is fully played. A steel plate can resist pulling stress from each direction and avoid surface rupture; the anti-sheared connector can transfer the shear force between the steel box beam and the concrete to avoid the separation of the steel box beam from the concrete. The grooved steel-concrete combined beam of the present invention has the advantages of simple and quick construction, prevention of surface rupture, etc. besides the advantages of a pre-stressed concrete grooved beam and has wide application prospect in the fields of bridge structure, etc.
Description
Technical field
The present invention relates to a kind of grooved girder steel-concrete combination beam that can be applicable to city rail bridge, railroad bridge and highway bridge.Belong to the bridge construction technical field.
Background technology
Traditional city rail elevated bridge generally adopts deck type box-type section or T type cross section, and the building integral height is big.Not only bigger to the civic landscape influence, the dough figurine group causes sense of depression over the ground, and easily near resident is produced noise jamming.Trough girder is a kind of form of structure that functions such as carrying, noise reduction and operation system are organically combined, and can reach the purpose that reduces structure height and reduce vision, noise pollution simultaneously.With respect to the deck type beam bridge, the trough girder in U type cross section can utilize bearing plate track and train, reduces track absolute altitude and integral bridge height, reduces the influence to surrounding enviroment; But girder is the double as noise barrier simultaneously, has saved sound insulating panel, helps reducing pollution from environmental noise; U type beam inboard is easy to arrange equipment such as communication, electric power, the space availability ratio height in whole eight cross sections; The top flange can be used as access path and passenger's emergency evacuation passage or makes the moon as the part of platform; Defencive function when having derail.Existing trough girder all adopts the prestressed reinforced concrete scheme, is subjected to the restriction of prestressed concrete own characteristic, and the particularly too complicated construction technology and the reduction of durability afterwards that is easy to ftracture and ftracture bring a lot of difficulties for the application of trough girder.
Summary of the invention
The purpose of this invention is to provide a kind of grooved girder steel-concrete combination beam that can significantly improve structural bearing capacity, rigidity, cracking resistance and workability.
Technical scheme of the present invention is as follows:
A kind of grooved girder steel-concrete combination beam is characterized in that: this compound beam is by open-topped steel case beam, is cast in the steel concrete of steel case beam inboard and the shear connector that is welding on the steel case beam inboard constitutes; Described opening steel case beam is made up of base plate and web, and its section adopts U type or W type.
Technical characterictic of the present invention also is: the upper end of described web is provided with top board, concreting on the top board.Described shear connector adopts peg.
The present invention has the following advantages with respect to prior art and the high-lighting effect: the present invention is combined by grooved girder steel and concrete two parts, and steel work is a produce in factory partly, is easy to ensure the quality of products; Concrete directly utilizes steel plate to carry out cast in situs, and non-mould construction also is easy to control quality; Steel work part weight is lighter, brings convenience to installation in position; Structure tensile region encased steel plate has been avoided concrete cracking, and is convenient to safeguard good endurance; Structure construction is simple, and the girder steel base plate all can be given full play to tensile strength horizontal and vertical, with respect to prestressed reinforced concrete construction simplified construction greatly, avoids the difficulty of reinforcing bar binding, welding and prestressing force two directions tension; Bearing and joint construction are simple, by bolt or welding, can form multi-joint structure easily, thereby can further strengthen the rigidity of structure and improve the comfortableness of driving.
Description of drawings
Fig. 1 is the schematic cross-section of U type cross section monorail grooved compound beam.
Fig. 2 is the schematic cross-section of U type cross section two-rail grooved compound beam.
Fig. 3 is the schematic cross-section of W type cross section two-rail grooved compound beam.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
The invention provides the grooved girder steel-concrete combination beam that can significantly improve structural bearing capacity, rigidity, cracking resistance and workability.In Fig. 1, Fig. 2 and grooved girder steel-concrete combination beam structural representation shown in Figure 3, melting welding shear connector 3 on prefabricated profiled upper opening steel case beam.At the medial surface concreting 2 of steel case beam, and be combined into one with steel case beam.Dispose the steel bar stress and the distributing bar of some in the concrete 2.
Working procedure of the present invention is:
Grooved girder steel-concrete combination beam of the present invention is made up of steel work and back pouring concrete two parts, and the two is combined into whole co-operation by the shear connector 3 of melting welding on steel plate.Steel case beam is made up of base plate 4 and web 5, and its section form is determined according to instructions for use, can be U type or W type, and steel plate thickness calculates definite according to beam span and beam width.For striding the less situation in footpath, web 5 should occupy the total height.For striding the bigger situation in footpath,, can be provided with top board 6 in web 5 upper ends for improving the bearing capacity and the rigidity of combined beam structure.Concrete 2 planted agents are provided with reinforcing bar as required, are used to improve the shear-carrying capacity of shear connector, participate in whole stressed to improve the bearing capacity of combined beam structure simultaneously.The thickness of concrete 2 is 100～300mm.Shear connector 3 generally should adopt peg, needs melting welding in base plate 4, web 5 and top board 6 a concrete side to be arranged, peg diameter 16～22mm, and height 80～220mm, spacing 100～250mm can adopt rectangular mesh shape or plum blossom shape to arrange.
Claims (3)
1. grooved girder steel-concrete combination beam is characterized in that: this compound beam is by open-topped grooved girder steel, is cast in the steel concrete (2) of flute profile girder steel inboard and the shear connector (3) that is welding on the flute profile girder steel inboard constitutes; Described flute profile girder steel is made up of base plate (4) and web (5), and its section adopts U type or W type; The thickness of described concrete (2) is 100mm～300mm.
2. according to the described grooved girder steel-concrete combination beam of claim 1, it is characterized in that: be provided with top board (6) in the upper end of described web (5), top board (6) is gone up concreting (7).
3. according to claim 1 or 2 described grooved girder steel-concrete combination beams, it is characterized in that: described shear connector adopts peg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100021395A CN100395410C (en) | 2006-01-19 | 2006-01-19 | Grooved steel-concrete combination beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100021395A CN100395410C (en) | 2006-01-19 | 2006-01-19 | Grooved steel-concrete combination beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1800495A CN1800495A (en) | 2006-07-12 |
| CN100395410C true CN100395410C (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100021395A Expired - Fee Related CN100395410C (en) | 2006-01-19 | 2006-01-19 | Grooved steel-concrete combination beam |
Country Status (1)
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| CN (1) | CN100395410C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286915A (en) * | 2011-08-30 | 2011-12-21 | 北京城建设计研究总院有限责任公司 | Urban railway traffic continuous basin type beam |
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| CN102691256A (en) * | 2012-04-13 | 2012-09-26 | 清华大学 | Composite channel steel-concrete beam employing novel shear connector and construction method |
| CN102619163A (en) * | 2012-04-13 | 2012-08-01 | 清华大学 | Middle bearing type opened-box-section steel-concrete combination beam and construction method thereof |
| CN104099859B (en) * | 2014-06-20 | 2016-04-13 | 中铁大桥勘测设计院集团有限公司 | Highway and railway clad steel-mixed bondbeam |
| CN104452568A (en) * | 2014-11-28 | 2015-03-25 | 林同棪国际工程咨询（中国）有限公司 | Steel plate girder pedestrian overbridge |
| CN106758745A (en) * | 2016-12-30 | 2017-05-31 | 长沙理工大学 | A kind of arch bridge and its construction method |
| CN108193600B (en) * | 2018-01-04 | 2019-06-25 | 武汉理工大学 | Improve the method and composite structure box beam of long-span continuous rigid-framed bridge cracking resistance |
| CN111979896B (en) * | 2020-08-26 | 2022-04-01 | 中铁二院工程集团有限责任公司 | Groove-shaped combination beam of pre-buried profile steel |
| CN112049007B (en) * | 2020-09-21 | 2022-06-24 | 湖南工学院 | Channel steel-concrete composite beam and manufacturing method thereof |
| CN114232462A (en) * | 2021-12-29 | 2022-03-25 | 哈尔滨工业大学 | Urban rail transit corrugated steel-concrete U-shaped combination beam and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064907A (en) * | 1992-04-07 | 1992-09-30 | 四川省交通厅公路规划勘察设计院 | Wire-mesh cement thin-walled box-girder |
| JP2004225290A (en) * | 2003-01-21 | 2004-08-12 | Ishikawajima Harima Heavy Ind Co Ltd | Composite floor-slab girder |
| CN1664239A (en) * | 2005-04-06 | 2005-09-07 | 湖南大学 | Steel-concrete combination backbone beam with big cantilever corrugated steel web overhanging beam |
| CN1676754A (en) * | 2004-04-01 | 2005-10-05 | 蔡耀中 | Shape steel-concrete combined beam |
-
2006
- 2006-01-19 CN CNB2006100021395A patent/CN100395410C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064907A (en) * | 1992-04-07 | 1992-09-30 | 四川省交通厅公路规划勘察设计院 | Wire-mesh cement thin-walled box-girder |
| JP2004225290A (en) * | 2003-01-21 | 2004-08-12 | Ishikawajima Harima Heavy Ind Co Ltd | Composite floor-slab girder |
| CN1676754A (en) * | 2004-04-01 | 2005-10-05 | 蔡耀中 | Shape steel-concrete combined beam |
| CN1664239A (en) * | 2005-04-06 | 2005-09-07 | 湖南大学 | Steel-concrete combination backbone beam with big cantilever corrugated steel web overhanging beam |
Non-Patent Citations (4)
| Title |
|---|
| 东海大桥主跨420m钢-混凝土箱形结合梁斜拉桥新技术. 邵长宇，颜爱华，邓青儿.桥梁建设，第2004卷第2期. 2004 |
| 东海大桥主跨420m钢-混凝土箱形结合梁斜拉桥新技术. 邵长宇，颜爱华，邓青儿.桥梁建设，第2004卷第2期. 2004 * |
| 外包钢-混凝土结合梁的静力分析. 马波.江苏大学硕士学位论文. 2005 |
| 外包钢-混凝土结合梁的静力分析. 马波.江苏大学硕士学位论文. 2005 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286915A (en) * | 2011-08-30 | 2011-12-21 | 北京城建设计研究总院有限责任公司 | Urban railway traffic continuous basin type beam |
| CN102286915B (en) * | 2011-08-30 | 2013-06-19 | 北京城建设计研究总院有限责任公司 | Urban railway traffic continuous basin type beam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1800495A (en) | 2006-07-12 |
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Granted publication date: 20080618 Termination date: 20110119 |