CN103603264A - Beam end joint structure for long-span structural railway bridge deck system auxiliary projects - Google Patents
Beam end joint structure for long-span structural railway bridge deck system auxiliary projects Download PDFInfo
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- CN103603264A CN103603264A CN201310602611.9A CN201310602611A CN103603264A CN 103603264 A CN103603264 A CN 103603264A CN 201310602611 A CN201310602611 A CN 201310602611A CN 103603264 A CN103603264 A CN 103603264A
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Abstract
The invention relates to a beam end joint structure for long-span structural railway bridge deck system auxiliary projects. In the long-span structural railway bridge deck system auxiliary projects, large beam joints affect integrity of beams; if the beam joints are narrowed, longitudinal elongation deformation of the beams jam shield plates and vertical walls at the ends of the adjacent beams. According to the beam end joint structure, a beam joint is reserved between two beams, the beams are provided with shield plates, side vertical walls, middle vertical walls and protective walls, the shield plates and the side vertical walls are integrated, a cable channel forms between each side vertical wall and the corresponding middle vertical wall, another cable channel forms between each middle vertical wall and the corresponding protective wall, cover plates are arranged above the cable channels, beam end shield plates are disposed between the cover plates, a cover plate joint between each two beam end cover plates is as wide as side wall joints and narrower than the beam joint, a steel cover plate is disposed above each cover plate joint, and each steel cover plate is fixed to the corresponding beam end cover plate on one side through anchor bolts. The beam end joint structure has the advantages that the adverse effect of the too small beam end shield plates, the too small vertical walls and the too small cover plate joints upon load-bearing capacities of the beams is avoided, and the requirement for elongation deformation of the beams under adverse conditions is met.
Description
Technical field
the invention belongs to bridge construction technical field of buildings, be specifically related to the beam-ends seam construction that a kind of large-span structure railroad bridge bridge floor is conveyance system.
Background technology
Railroad bridge engineering bridge deck conveyance system is comprised of protecting wall, shield, cable channel (straight wall and limit straight wall, cover plate in comprising), railing (comprise column, every post and handrail) or sound barrier, mast foundation for overhead contact wire system, shrinkage joint, bridge surface waterproof layer and topping, spilled water hole etc.Generally shield, straight wall, the same length of cover plate, shield, as prefabricated units, connects as a whole at bridge location and beam body limit straight wall.When beam-ends beam seam for example, compared with hour (24m, 32m simply supported beam linear beam seam are 10cm), under the condition that meets the distortion of beam body vertical equity, can suitably adjust the precast length of shield, straight wall, cover plate, make beam-ends gap be controlled at 4cm.But for large span continuous beam connect simply supported beam, continuous beam connects continuous beam and other large-span structures, beam seam value reaches 20～30cm, if merely from angle attractive in appearance, beam-ends gap is also pressed 4cm and is controlled, under some the most unfavorable processing condition, the longitudinal tensile strain distortion due to beam body makes adjacent beams body two ends shield, straight wall dieback, thereby has a negative impact to beam body is stressed; If meet the requirement of some the most unfavorable processing condition underbeam body longitudinal tensile strains distortion, shield, straight wall, cover plate gap need 10～15cm, and gap is excessive, and to affect structure attractive in appearance, and sidewalk, termination cover plate need hang again, exist and overcome the cover plate problem of throwing.
Summary of the invention
The object of this invention is to provide the beam-ends seam construction that a kind of large-span structure railroad bridge bridge floor is conveyance system, problem is processed in the gap that has solved bridge deck conveyance system beam-ends shield, straight wall, cover plate.
The technical solution adopted in the present invention is:
Large-span structure railroad bridge bridge floor is the beam-ends seam construction of conveyance system, comprises two adjacent binding beam bodies, between the beam-ends of two binding beam bodies, be provided with vertical bridge to beam seam, it is characterized in that:
Every binding beam body top is from widthwise edge genesis, be disposed be parallel to vertical bridge to and perpendicular to shield, limit straight wall, middle straight wall and the protecting wall of beam body; Shield and limit straight wall connect for whole; Between limit straight wall and middle straight wall, middle straight wall and protecting wall, be cable channel;
Shield and limit straight wall are contour, and middle straight wall height is lower than shield, limit straight wall and protecting wall; Limit straight wall and protecting wall are provided with the shoulder contour with middle straight wall near the side of middle straight wall, set up cover plate on shoulder;
Between the limit straight wall of two binding beam bodies tops and between middle straight wall, be provided with vertical bridge to, abutment wall seam that width is identical, the width of abutment wall seam is less than the width of beam seam;
The vertical bridge of cover plate is less than limit straight wall and middle straight wall to length, between adjacent cover plate, the vertical bridge of limit straight wall and middle straight wall is provided with Bolster end cover to top, end, between adjacent beams end casing vertical bridge to the width of cover plate seam identical with the width that abutment wall stitches, the cover plate side of sewing on is provided with steel deck-plate, and steel deck-plate and the wherein Bolster end cover of a side fix by anchor bolt.
The vertical bridge of described beam seam is 20～30cm to width;
The vertical bridge of described cover plate seam is 10～15cm to the vertical bridge of width and abutment wall seam to width.
Between the shield of adjacent two binding beam body tops, be provided with elasticity macromolecule fill-in pad.
The whole top that shield and limit straight wall are coupled to is provided with the groove that intercepts water.
The present invention has the following advantages:
Seam construction involved in the present invention, avoided beam-ends shield, straight wall, cover plate gap is too small and cause to the stressed adverse effect of beam body; Overcome beam-ends shield, straight wall, cover plate gap excessive, and affected the problem that beam body is attractive in appearance; And guaranteed the requirement in some the most unfavorable processing condition underbeam body elongation strain.
Accompanying drawing explanation
Fig. 1 is beam end shield, straight wall, cover plate lateral arrangement schematic diagram.
Fig. 2 is that schematic diagram is processed in beam end straight wall, cover plate gap.
Fig. 3 is beam end steel deck-plate fixed pan schematic diagram.
Fig. 4 is that schematic diagram is processed in beam end shield gap.
In figure, 1-beam body, 2-limit straight wall, 3-cover plate, 4-Bolster end cover, 5-steel deck-plate, 6-anchor bolt, 7-shield, 8-elasticity macromolecule fill-in pad, the 9-groove that intercepts water, 10-protecting wall, straight wall in 11-.
The specific embodiment
Below in conjunction with the specific embodiment, the present invention will be described in detail.
The beam-ends seam construction that a kind of large-span structure railroad bridge bridge floor involved in the present invention is conveyance system, comprise between the beam-ends of two adjacent binding beam body 1, two binding beam bodies 1, be provided with vertical bridge to beam seam.Referring to Fig. 1, every binding beam body 1 top is from widthwise edge genesis, be disposed be parallel to vertical bridge to and perpendicular to shield 7, limit straight wall 2, middle straight wall 11 and the protecting wall 10 of beam body 1; Shield 7 connects for whole with limit straight wall 2; Between limit straight wall 2 and middle straight wall 11, middle straight wall 11 and protecting wall 10, be cable channel.Shield 7, limit straight wall 2 and protecting wall 10 are contour, and middle straight wall 11 height are lower than shield 7, limit straight wall 2 and protecting wall 10; Limit straight wall 2 and protecting wall 10 are provided with the shoulder contour with middle straight wall 11 near the side of middle straight wall 11, set up cover plate 3 on shoulder.
Referring to Fig. 2, between the limit straight wall 2 of two binding beam body 1 tops and between middle straight wall 11, be provided with vertical bridge to, abutment wall seam that width is identical, the width of abutment wall seam is less than the width of beam seam.The vertical bridge of cover plate 3 is less than limit straight wall 2 and middle straight wall 11 to length, between adjacent cover plate 3, the vertical bridge of limit straight wall 2 and middle straight wall 11 is provided with Bolster end cover 4 to top, end, between adjacent beams end casing 4 vertical bridge to the width of cover plate seam identical with the width that abutment wall stitches.Referring to Fig. 3, the cover plate side of sewing on is provided with steel deck-plate 5, can effectively solve the excessive or Bolster end cover 4 of cover plate between Bolster end cover 4 seam width and hang the problem that may throw; For adapting to beam body 1 dilatation, steel deck-plate 5 and the wherein Bolster end cover 4 of a side fix by anchor bolt 6.Wherein, the vertical bridge of beam seam is 20～30cm to width, and the vertical bridge of cover plate seam is 10～15cm to the vertical bridge of width and abutment wall seam to width.
Referring to Fig. 4, between the shield 7 of adjacent two binding beam body 1 tops, be provided with elasticity macromolecule fill-in pad 8, the continuity that has guaranteed shield 7, meets requirement attractive in appearance, and elasticity macromolecule fill-in pad 8 has ability and the good durability of higher adaptation beam body deformability on the other hand.
In Fig. 1, shield 7 is also provided with the whole top that limit straight wall 2 is coupled to the groove 9 that intercepts water.
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading manual of the present invention, is claim of the present invention and contains.
Claims (4)
1. large-span structure railroad bridge bridge floor is the beam-ends seam construction of conveyance system, comprises two adjacent binding beam bodies (1), between the beam-ends of two binding beam bodies (1), be provided with vertical bridge to beam seam, it is characterized in that:
Every binding beam body (1) top is from widthwise edge genesis, be disposed be parallel to vertical bridge to and perpendicular to shield (7), limit straight wall (2), middle straight wall (11) and the protecting wall (10) of beam body (1); Shield (7) connects for whole with limit straight wall (2); Between limit straight wall (2) and middle straight wall (11), middle straight wall (11) and protecting wall (10), be cable channel;
Shield (7) and limit straight wall (2) are contour, and middle straight wall (11) height is lower than shield (7), limit straight wall (2) and protecting wall (10); Limit straight wall (2) and protecting wall (10) are provided with the shoulder contour with middle straight wall (11) near the side of middle straight wall (11), set up cover plate (3) on shoulder;
Between the limit straight wall (2) of two binding beam bodies (1) tops and between middle straight wall (11), be provided with vertical bridge to, abutment wall seam that width is identical, the width of abutment wall seam is less than the width that beam stitches;
The vertical bridge of cover plate (3) is less than limit straight wall (2) and middle straight wall (11) to length, between adjacent cover plate (3), the vertical bridge of limit straight wall (2) and middle straight wall (11) is provided with Bolster end cover (4) to top, end, between adjacent beams end casing (4) vertical bridge to the width of cover plate seam identical with the width that abutment wall stitches, the cover plate side of sewing on is provided with steel deck-plate (5), and steel deck-plate (5) and the wherein Bolster end cover of a side (4) fix by anchor bolt (6).
2. the beam-ends seam construction that large-span structure railroad bridge bridge floor according to claim 1 is conveyance system, is characterized in that:
The vertical bridge of described beam seam is 20～30cm to width;
The vertical bridge of described cover plate seam is 10～15cm to the vertical bridge of width and abutment wall seam to width.
3. the beam-ends seam construction that large-span structure railroad bridge bridge floor according to claim 2 is conveyance system, is characterized in that:
Between the shield (7) of adjacent two binding beam body (1) tops, be provided with elasticity macromolecule fill-in pad (8).
4. the beam-ends seam construction that large-span structure railroad bridge bridge floor according to claim 3 is conveyance system, is characterized in that:
Shield (7) is provided with the groove that intercepts water (9) with the whole top that limit straight wall (2) is coupled to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602611.9A CN103603264B (en) | 2013-11-25 | 2013-11-25 | The beam end joint structure of large-span structure railroad bridge bridge floor system conveyance system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602611.9A CN103603264B (en) | 2013-11-25 | 2013-11-25 | The beam end joint structure of large-span structure railroad bridge bridge floor system conveyance system |
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| CN103603264A true CN103603264A (en) | 2014-02-26 |
| CN103603264B CN103603264B (en) | 2016-04-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223187A (en) * | 2016-08-30 | 2016-12-14 | 株洲时代新材料科技股份有限公司 | Shield for mining under railways |
| CN106245526A (en) * | 2016-09-30 | 2016-12-21 | 中铁上海工程局集团有限公司 | The splicing structure of mining under railways protecting wall, straight wall and shield and construction method |
| CN106498844A (en) * | 2016-12-01 | 2017-03-15 | 中铁第四勘察设计院集团有限公司 | A kind of high speed railway box beam bridge floor pre-fabricated electric cables groove |
| CN110106783A (en) * | 2019-05-31 | 2019-08-09 | 中铁第四勘察设计院集团有限公司 | Bridge structure and construction method on a kind of cable |
| CN110528386A (en) * | 2019-09-09 | 2019-12-03 | 中国建筑土木建设有限公司 | High-speed railway bridge deck system structure based on prefabricated cable grooves and construction method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223187A (en) * | 2016-08-30 | 2016-12-14 | 株洲时代新材料科技股份有限公司 | Shield for mining under railways |
| CN106245526A (en) * | 2016-09-30 | 2016-12-21 | 中铁上海工程局集团有限公司 | The splicing structure of mining under railways protecting wall, straight wall and shield and construction method |
| CN106498844A (en) * | 2016-12-01 | 2017-03-15 | 中铁第四勘察设计院集团有限公司 | A kind of high speed railway box beam bridge floor pre-fabricated electric cables groove |
| CN110106783A (en) * | 2019-05-31 | 2019-08-09 | 中铁第四勘察设计院集团有限公司 | Bridge structure and construction method on a kind of cable |
| CN110106783B (en) * | 2019-05-31 | 2023-12-15 | 中铁第四勘察设计院集团有限公司 | Cable upper bridge structure and construction method |
| CN110528386A (en) * | 2019-09-09 | 2019-12-03 | 中国建筑土木建设有限公司 | High-speed railway bridge deck system structure based on prefabricated cable grooves and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN103603264B (en) | 2016-04-13 |
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