CN202530365U - Half-through type opening box-shaped section steel-concrete composite beam - Google Patents
Half-through type opening box-shaped section steel-concrete composite beam Download PDFInfo
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- CN202530365U CN202530365U CN201220160507XU CN201220160507U CN202530365U CN 202530365 U CN202530365 U CN 202530365U CN 201220160507X U CN201220160507X U CN 201220160507XU CN 201220160507 U CN201220160507 U CN 201220160507U CN 202530365 U CN202530365 U CN 202530365U
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- 239000004567 concrete Substances 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 230000000295 complement effect Effects 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model relates to a half-through type opening box-shaped section steel-concrete composite beam, and belongs to the technical field of bridge structure. The composite beam comprises an opening box-shaped beam, stud connecting pieces and a concrete slab, wherein the opening box-shaped beam comprises two upper flange plates, two web plates, a base plate and a middle horizontal plate fixedly connected together; in the box-shaped space formed by the two web plates, the base plate and the middle horizontal plate, diaphragm plates are arranged every certain distance in the bridge longitudinally; the size of the diaphragm plates is matched with the box-shaped space, and the diaphragm plates are fixedly connected with surrounding steel plates; the stud connecting pieces are welded with the upper flange plates, middle horizontal plates and the web plates above the middle horizontal plates; and bar-mat reinforcements are arranged above the plates and cast with concrete to form a concrete slab. The half-through type opening box-shaped section steel-concrete composite beam is a bridge form with simple structure, reasonable stress and convenience for construction; and the beam can be widely applied.
Description
Technical field
The utility model relates to a kind of half-through opening box tee section steel-concrete composite beam that can be applicable to urban track traffic bridge, railroad bridge and highway bridge, belongs to the bridge construction technical field.
Background technology
In the actual engineering, the superstructure of railroad bridge and urban track traffic bridge generally adopts the T section or the box-girder of deck type.Sometimes in order to increase structure bottom headroom or to reduce depth of fill, the channel section beam of lower support type has also obtained application in some railroad bridges and urban track traffic bridge.The channel section beam of lower support type is owing to be opening section, and anti-twisting property and anti-distortion ability are relatively poor, and the design and the comparatively complicacy of constructing.The half-through beam bridge has combined the characteristics of deck type beam bridge and lower support type beam bridge, under some design condition, has very big competitive advantage.The superstructure of railroad bridge that has built up and urban track traffic bridge is main with prestressed reinforced concrete structure mainly.In recent years, adopt steel-concrete composite beam rapid in China's development as the bridge of superstructure.Because steel-concrete composite beam has advantages such as rigidity is big, bearing capacity is high, depth of section is little, anti-crack ability is good, in bridge engineering, has broad application prospects.
The utility model content
The purpose of the utility model is in conjunction with the characteristics of half-through beam bridge and steel-concrete composite beam, to propose the opening box tee section steel-concrete composite beam of the half-through of a kind of simple structure, reasonable stress, easy construction to the problem that exists in the prior art.The technical scheme of the utility model is following:
The opening box tee section steel-concrete composite beam of a kind of half-through of the utility model is characterized in that, this compound beam comprises opening steel case beam, peg connector 7 and concrete slab 6; Described opening steel case beam comprises two top flange plates 1 that are fixed together, two webs 2, base plate 3 and middle part level board 4; In the box-shaped space that two webs 2, base plate 3, middle part level board 4 form, vertically every at a distance from one diaphragm of a segment distance setting 5 along bridge; Described diaphragm 5 is complementary with described box-shaped space, and is fixed together with on every side steel plate; On described top flange plate 1, middle part level board 4 and the web 2 of middle part level board more than 4, be welded with peg connector 7, and arrange that above it reinforced mesh and concreting form concrete slab 6.
The utility model has the following advantages with respect to prior art and gives prominence to effect:
The utility model is compared the T shape and the box-girder bridge of deck type, has bigger under-clearance.When T shape and box-girder bridge can not satisfy bridge bottom headroom and require, the utility model was a good selection scheme; The utility model is compared the flute profile beam bridge of lower support type, has bigger anti-twisting property and anti-distortion ability, and is stressed more reasonable.The utility model has adopted steel-concrete combined structure, has advantages such as rigidity is big, bearing capacity is high, anti-crack ability is good, compares traditional prestressed reinforced concrete structure, and it is more convenient to construct.The utility model can be applicable to urban track traffic bridge, railroad bridge and highway bridge.
Description of drawings
Fig. 1 is the schematic cross-section of the utility model;
Among the figure: the 1-top flange plate; The 2-web; The 3-base plate; 4-middle part level board; The 5-diaphragm; The 6-concrete slab; 7-peg connector.
The specific embodiment
Below in conjunction with accompanying drawing, the practical implementation method of the utility model is further described.
The utility model is a kind of opening box tee section steel-concrete composite beam of half-through, and is as shown in Figure 1.The utility model comprises opening steel case beam, peg connector 7 and concrete slab 6; Opening steel case beam comprises affixed (welding) together two top flange plates 1, two webs 2, base plate 3 and middle part level board 4.In the box-shaped space that two webs 2, base plate 3, middle part level board 4 form, vertically every at a distance from one diaphragm of a segment distance setting 5 along bridge.The concrete spacing of diaphragm 5 should be confirmed according to calculating and engineering actual conditions.The size of diaphragm 5 and box-shaped space are complementary, and with steel plate on every side affixed (welding) together.Diaphragm 5 can improve the anti-distortion ability in whole cross section, can support middle part level board 4 simultaneously, improves the lateral stiffness of structure.On described top flange plate 1, middle part level board 4 and the web 2 of middle part level board more than 4, be welded with peg connector 7, and arrange that above it reinforced mesh (not shown) and concreting form concrete slab 6.The reinforced mesh of arranging in the concrete is used to improve the shear-carrying capacity of peg connector, and controls concrete non-load crack.Peg connector 7 can guarantee top flange plate, web and middle part level board and concrete collaborative work, forms the steel plate-concrete compoboard.The compoboard that the middle part level board 4 and the steel concrete of opening steel case beam are combined to form directly bears train load, and gives other positions of compound beam with Load Transfer.
The described diaphragm 5 of the utility model can vertically whenever be provided with together at a distance from 4～8m at bridge; The centre of diaphragm 5 has the hole, is the needs of maintenance on the one hand, is to save steel on the other hand.
The job practices of the utility model is:
In steel work processing factory, two top flange plates, two webs, base plate and middle part level board welding processing are accomplished opening steel case beam; And on top flange plate, middle part level board and the web more than the level board of middle part, welded peg connector 7; The diaphragm that welding size and box-shaped space are complementary in the box-shaped space; Behind the girder steel installation in position, on two top flange plates, middle part level board and the web more than the level board of middle part, arrange reinforced mesh and side form, concreting is accomplished construction.
Claims (3)
1. the opening box tee section steel-concrete composite beam of a half-through is characterized in that, this compound beam comprises opening steel case beam, peg connector (7) and concrete slab (6); Described opening steel case beam comprises two top flange plates (1), two webs (2), base plate (3) and the middle part level board (4) that is fixed together; In the box-shaped space that two webs (2), base plate (3), middle part level board (4) form, vertically whenever be provided with diaphragm (5) at a distance from a segment distance along bridge; Described diaphragm (5) and described box-shaped space are complementary, and are fixed together with on every side steel plate; On described top flange plate (1), middle part level board (4) and the web (2) more than the middle part level board (4), be welded with peg connector (7), and arrange that above it reinforced mesh and concreting form concrete slab (6).
2. opening box tee section steel-concrete composite beam according to claim 1 is characterized in that, described diaphragm (5) vertically whenever is being provided with together at a distance from 4～8m along bridge.
3. opening box tee section steel-concrete composite beam according to claim 1 and 2 is characterized in that the centre of described diaphragm (5) has the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220160507XU CN202530365U (en) | 2012-04-13 | 2012-04-13 | Half-through type opening box-shaped section steel-concrete composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220160507XU CN202530365U (en) | 2012-04-13 | 2012-04-13 | Half-through type opening box-shaped section steel-concrete composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202530365U true CN202530365U (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220160507XU Expired - Lifetime CN202530365U (en) | 2012-04-13 | 2012-04-13 | Half-through type opening box-shaped section steel-concrete composite beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202530365U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106836639A (en) * | 2017-04-11 | 2017-06-13 | 南京工业大学 | FRP box-shaped section-concrete combined beam provided with bidirectional shear keys |
-
2012
- 2012-04-13 CN CN201220160507XU patent/CN202530365U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106836639A (en) * | 2017-04-11 | 2017-06-13 | 南京工业大学 | FRP box-shaped section-concrete combined beam provided with bidirectional shear keys |
| CN106836639B (en) * | 2017-04-11 | 2022-09-23 | 南京工业大学 | FRP box-shaped section-concrete combined beam provided with bidirectional shear keys |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |