CN201148592Y - Circular steel tube concrete wing edge combination beam - Google Patents
Circular steel tube concrete wing edge combination beam Download PDFInfo
- Publication number
- CN201148592Y CN201148592Y CNU2008200280271U CN200820028027U CN201148592Y CN 201148592 Y CN201148592 Y CN 201148592Y CN U2008200280271 U CNU2008200280271 U CN U2008200280271U CN 200820028027 U CN200820028027 U CN 200820028027U CN 201148592 Y CN201148592 Y CN 201148592Y
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Abstract
The utility model provides a round steel concrete flange combined beam. A web plate is arranged along the length direction of a lower wing plate; the front surface and the back surface of the web plate are provided with a rib stiffener; the upper end of the web plate is provided with a steel pipe; self-compacting concrete is poured into the steel pipe. Compared with flat flange steel---concrete combined beam, the utility model has the advantages of low beam height, small self weight, high bearing capacity, high rigidity, good stability and safety, good anti-shock performance, low cost, etc. The round steel concrete flange combined beam can be promoted and used in the construction of highways, railways and urban bridges and is particularly suitable for bridge construction in the area with high requirements for limited clearance under bridges and earthquake resistance.
Description
Technical field
The utility model belongs to steel bridge and steel-concrete combined bridge technical field, is specifically related to have the steel-concrete combined bridge on the pressure-bearing round steel pipe concrete edge of a wing.
Background technology
The steel-concrete composite beam bridge is a kind of bridge type that grows up on steel bridge, concrete bridge basis, the steel-concrete composite beam bridge has been taken into account the advantage of steel bridge, concrete bridge, both shortcomings have been overcome simultaneously again, advantage such as have the bearing capacity height, rigidity is big, span ability is strong, the structural construction height is low, anti-seismic performance is good.Steel-concrete composite beam is normally combined with i section steel beam and concrete slab, is connected to whole force structure by shear connector between the two.Local buckling can appear during the wing plate pressurized of i section steel beam, brought into play more fully in order to make the bottom flange strength of materials, in design process, the distance that as far as possible will go up the bottom flange widens and makes web too high, it is very outstanding that the stable problem of web becomes, and the stable problem of web and compression flange becomes the principal element of control design.For avoiding wing plate local buckling, in design process, often take to increase the thickness of wing plate and measures such as stiffening rib are set, improve the wing plate stress performance, can cause the complex structure of steel-concrete composite beam like this, construction period increases, and has strengthened the construction cost of bridge.
At present, in bridge design and the work progress, do not see the research report of the steel-concrete composite beam of band round steel pipe concrete top flange at home.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of above-mentioned steel-concrete composite beam, and a kind of reasonable in design, simple in structure, use is easy to maintenance, supporting capacity is strong, construction cost is low round steel pipe concrete flange combining beam is provided.
Solving the problems of the technologies described above the technical scheme that is adopted is: be provided with web at the lower wing plate length direction, the front and rear surfaces of web is provided with stiffening rib, is provided with steel pipe in the upper end of web, cast self-compacting concrete in the steel pipe.
The width of lower wing plate of the present utility model is that 300～800mm, thickness are 14～40mm, and the thickness of web is 8～20mm, highly is 600～2200mm that the internal diameter of steel pipe is that 180～500mm, thickness of pipe wall are 8～20mm.
The width of lower wing plate of the present utility model is preferably 400～650mm, thickness is preferably 20～30mm, and the thickness of web is preferably 12～16mm, highly is preferably 900～1800mm, and the internal diameter of steel pipe is preferably 200～400mm, thickness of pipe wall is preferably 10～18mm.
The utility model adopts round steel pipe to replace the top flange of traditional i beam, and pours into a mould self-compacting concrete in round steel pipe, has formed the novel steel-concrete combination beam of band round steel pipe concrete top flange.The utility model is compared with dull and stereotyped edge of a wing steel-concrete composite beam, under the identical situation of steel using amount, deck-molding than dull and stereotyped edge of a wing steel-concrete composite beam is low, rigidity big, good stability, reduced the height of web, overcome because the excessive caused stability problem of web flakiness ratio, the distortion of the self-compacting concrete constraint tube wall in the steel pipe, steel pipe is internally filled out concrete lateral restraint effect and can be significantly improved concrete compressive strength simultaneously, thereby has improved the anti-pressure ability of top flange.Under the bearing capacity situation identical with rigidity, can reduce the physical dimension of steel-concrete composite beam, saved raw material, reduced the expense of bridge construction.The utlity model has advantages such as depth of beam is low, deadweight is little, bearing capacity is high, rigidity is high, good stability, safety is good, anti-seismic performance is good, cost is low, can in highway, railway and Urban Bridge construction, promote the use of, suit especially to use in the bridge limited at the bridge under-clearance, that the earthquake protection degree is had relatively high expectations the area build.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the A-A sectional drawing of Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail, but the utility model is not limited to these embodiment.
In Fig. 1, Fig. 2, the round steel pipe concrete flange combining beam of present embodiment is connected and composed by steel pipe 1, stiffening rib 2, web 3, lower wing plate 4, self-compacting concrete 5.
The lower wing plate 4 of present embodiment is a rectangular slab, the width of lower wing plate 4 is that 550mm, thickness are 25mm, the length of lower wing plate 4 designs by the span of bridge, be welded with web 3 at lower wing plate 4 length direction position of center line, web 3 is vertical with lower wing plate 4, the thickness of web 3 is 16mm, and the height of web 3 is 1400mm.Be welded with stiffening rib 2 on the front and rear surfaces of web 3, stiffening rib 2 is vertical, vertical with web 3 with lower wing plate 4, and the spacing of stiffening rib 2, width, thickness design according to related standards.Be welded to connect steel pipe 1 in the upper end of web 3, steel pipe 1 is a round steel pipe, and the length of steel pipe 1 is identical with the length of web 3, and the internal diameter of steel pipe 1 is that 320mm, thickness of pipe wall are 14mm.Cast self-compacting concrete 5 in steel pipe 1 has constituted the steel-concrete composite beam of being with round steel pipe concrete top flange.In the practical structures design process, the concrete physical dimension of steel pipe 1, stiffening rib 2, web 3, lower wing plate 4 should be taken all factors into consideration span, bearing capacity, the rigidity requirement of beam, and the intensity of material is calculated definite.This steel-concrete composite beam is compared with the steel-concrete composite beam on the dull and stereotyped edge of a wing, under the identical situation of steel using amount, good stability than dull and stereotyped edge of a wing steel-concrete composite beam, reduced the height of web, overcome because the excessive caused stability problem of web flakiness ratio, the distortion of the self-compacting concrete constraint tube wall in the steel pipe, the lateral restraint effect of steel pipe walls simultaneously also can significantly improve concrete compressive strength, and the anti-pressure ability of top flange is significantly improved.Under the bearing capacity situation identical with rigidity, can reduce the physical dimension of steel-concrete composite beam, saved raw material, reduced the bridge construction expense.This steel-concrete composite beam has advantages such as depth of beam is low, deadweight is little, bearing capacity is high, rigidity is big, good stability, safety is good, anti-seismic performance is good, construction cost is low.
In the present embodiment, the width of lower wing plate 4 is that 300mm, thickness are 14mm, and the length of lower wing plate 4 designs by the span of bridge, and the thickness of web 3 is 8mm, and the height of web 3 is 600mm, and the internal diameter of steel pipe 1 is that 180mm, thickness of pipe wall are 8mm.The annexation of other component and component is identical with embodiment 1.
Embodiment 3
In the present embodiment, the width of lower wing plate 4 is that 800mm, thickness are 40mm, and the length of lower wing plate 4 designs by the span of bridge, and the thickness of web 3 is 20mm, and the height of web 3 is 2200mm, and the internal diameter of steel pipe 1 is that 500mm, thickness of pipe wall are 20mm.The annexation of other component and component is identical with embodiment 1.
Also can design other concrete round steel pipe concrete flange combining beam according to above-mentioned principle; in design process; physical dimension should be according to span, bearing capacity, the rigidity requirement of beam, and bond material intensity calculates to determine, but all within protection domain of the present utility model.
Claims (3)
1, a kind of round steel pipe concrete flange combining beam, it is characterized in that: be provided with web (3) at lower wing plate (4) length direction, the front and rear surfaces of web (3) is provided with stiffening rib (2), is provided with steel pipe (1) in the upper end of web (3), cast self-compacting concrete (5) in the steel pipe (1).
2, according to the described round steel pipe concrete of claim 1 flange combining beam, it is characterized in that: the width of said lower wing plate (4) is that 300～800mm, thickness are 14～40mm, the thickness of web (3) is 8～20mm, highly is 600～2200mm that the internal diameter of steel pipe (1) is that 180～500mm, thickness of pipe wall are 8～20mm.
3, according to the described round steel pipe concrete of claim 1 flange combining beam, it is characterized in that: the width of said lower wing plate (4) wherein is that 400～650mm, thickness wherein are 20～30mm, the thickness of web (3) wherein is 12～16mm, highly wherein is 900～1800mm that the internal diameter of steel pipe (1) wherein is that 200～400mm, thickness of pipe wall wherein are 10～18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200280271U CN201148592Y (en) | 2008-01-03 | 2008-01-03 | Circular steel tube concrete wing edge combination beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200280271U CN201148592Y (en) | 2008-01-03 | 2008-01-03 | Circular steel tube concrete wing edge combination beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201148592Y true CN201148592Y (en) | 2008-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200280271U Expired - Fee Related CN201148592Y (en) | 2008-01-03 | 2008-01-03 | Circular steel tube concrete wing edge combination beam |
Country Status (1)
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| CN (1) | CN201148592Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892626A (en) * | 2010-08-02 | 2010-11-24 | 长安大学 | Steel pipe concrete flange combining beam with concrete fender |
| CN103556780A (en) * | 2013-10-29 | 2014-02-05 | 刘阳 | Flange buckling-preventing section steel and concrete composite beam |
| CN107227694A (en) * | 2017-07-27 | 2017-10-03 | 长安大学 | A kind of concrete-bridge transversely strengthening construction |
| CN108265883A (en) * | 2018-03-29 | 2018-07-10 | 攀枝花学院 | A kind of wine cup shape Section of Steel-concrete Composite Beam and its construction method |
-
2008
- 2008-01-03 CN CNU2008200280271U patent/CN201148592Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892626A (en) * | 2010-08-02 | 2010-11-24 | 长安大学 | Steel pipe concrete flange combining beam with concrete fender |
| CN101892626B (en) * | 2010-08-02 | 2012-11-14 | 长安大学 | Steel pipe concrete flange combining beam with concrete fender |
| CN103556780A (en) * | 2013-10-29 | 2014-02-05 | 刘阳 | Flange buckling-preventing section steel and concrete composite beam |
| CN103556780B (en) * | 2013-10-29 | 2016-05-18 | 华侨大学 | The anti-buckling shape steel-concrete combined beam in a kind of edge of a wing |
| CN107227694A (en) * | 2017-07-27 | 2017-10-03 | 长安大学 | A kind of concrete-bridge transversely strengthening construction |
| CN108265883A (en) * | 2018-03-29 | 2018-07-10 | 攀枝花学院 | A kind of wine cup shape Section of Steel-concrete Composite Beam and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20110103 |