CN203593957U - Expansion joint of railway prestressed concrete partial cable-stayed bridge end - Google Patents
Expansion joint of railway prestressed concrete partial cable-stayed bridge end Download PDFInfo
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- CN203593957U CN203593957U CN201320748591.1U CN201320748591U CN203593957U CN 203593957 U CN203593957 U CN 203593957U CN 201320748591 U CN201320748591 U CN 201320748591U CN 203593957 U CN203593957 U CN 203593957U
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- stayed bridge
- expansion joint
- prestressed concrete
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Abstract
The utility model relates to an expansion joint of a railway prestressed concrete partial cable-stayed bridge end. Higher technical requirements for an expansion joint of an urban railway long-span structure exist, the expansion joint needs to adapt to deformation of a bridge, and the requirement for durability is high. The expansion joint comprises two binding beams longitudinally adjacent, a beam joint with a longitudinal width is formed between the two binding beams, and the upper surfaces of the opposite ends of the adjacent beams are provided with beam end slots. The shoulder faces of the beam end slots in the two sides of the beam joint are fixedly provided with a plurality of steel supports which are transversely arranged and longitudinally opposite to one another, H-shaped steel longitudinal beams are fixed to the positions above all sets of longitudinal steel supports respectively, activity fly ash concrete plates are arranged above the H-shaped steel longitudinal beams, and a rubber water stop belt is arranged in the middle of the beam joint. The expansion joint can adapt to the long-span bridge body bridge deflection caused by the temperature changes, concrete shrinkage creeping and various loads and the longitudinal deformation caused by factors such as a bridge floor longitudinal slope, the train braking force and other factors, the sealing and waterproof performance is good, and construction and installation are easy and convenient.
Description
Technical field
the utility model belongs to bridge construction technical field of buildings, is specifically related to a kind of Railway Prestressed Concrete partial cable-stayed bridge beam-ends shrinkage joint.
Background technology
Along with the development of administrative region of a city railway, large across combining structure, the application in administrative region of a city railway is also more and more extensive, and prestressed concrete partial cable-stayed bridge beam is exactly a kind of application bridge type very widely.For prestressed concrete partial cable-stayed bridge beam, because its span is larger, strengthened by the impact of the factors such as temperature Change, concrete shrinkage and creep, the caused deflection of bridge span of various load, deck profile grade and braking force of train, bridge longitudinal strain is corresponding increasing also.Flexiblely be sewed with higher technical requirements, the distortion between the superstructure that shrinkage joint need adapt to cause due to above factor for what arrange between beam-ends and beam-ends (or abutment); The anchoring of expansion gap device needs firmly, with the globality that guarantees to connect; Expansion gap device durability need meet the demands, and prevents that rainwater from infiltrating; Easy for installation and be convenient to maintenance; And can solve fragment-free track slab and hang long problem at large-span structure beam-ends.
Summary of the invention
The purpose of this utility model is to provide a kind of Railway Prestressed Concrete partial cable-stayed bridge beam-ends shrinkage joint, can adapt to the larger distortion of prestressed concrete partial cable-stayed bridge beam body.
The technical scheme that the utility model adopts is:
A kind of Railway Prestressed Concrete partial cable-stayed bridge beam-ends shrinkage joint, is characterized in that:
Include longitudinally two adjacent binding beam bodies, the beam seam together with longitudinal width is set between two binding beam bodies, the end upper surface that adjacent beams body is relative is provided with beam-ends notch;
On the shoulder face of the beam-ends notch of beam seam both sides, be all fixed with transversely arranged multiple steel supports, and longitudinally relative, and every group of longitudinal steel support top is fixed with i shaped steel longeron one.
On the shoulder face of beam-ends notch, be provided with beam body pre-embedded steel slab, the lower shoe of steel support welds mutually with beam body pre-embedded steel slab, makes steel support be fixed on the shoulder face of beam-ends notch; Steel support upper plate welds mutually with the bottom wing listrium of i shaped steel longeron;
Beam body pre-embedded steel slab below is welded with many steel plate anchor bars longitudinal, that be embedded in advance Liang Tizhong, and steel plate anchor bar is bent into " Jiong " font, end bending, and bending place arranges horizontal anchor bar, connects whole row's steel plate anchor bar.
It is the fixing steel support of ball-type that beam stitches fixing steel support on a curb girder end slot mouth shoulder face, and on beam seam opposite side beam-ends notch shoulder face, fixing steel support is longitudinally-moving steel support.
I shaped steel longeron top is provided with active fly ash concrete slab, between i shaped steel longeron and active fly ash concrete slab, is connected by WELDING STUDS; The longitudinal groove of multiple tracks is offered in active fly ash concrete slab bottom, and i shaped steel longeron top card is in above-mentioned groove;
The track plates that active fly ash concrete slab end face and beam body top arrange is contour.
Between beam seam, be provided with rubber fastening band, rubber water-proof belt edge is fixed on the shoulder face of beam-ends notch by waterstop anchor bolt.
The utlity model has following advantage:
The utility model can adapt to the longitudinal strain of the bridge beam body that beam body that span is larger causes because of factors such as temperature Change, concrete shrinkage and creep, the caused deflection of bridge span of various load, deck profile grade and braking force of train, can resist the effect of cyclic reverse loading, reliable connection carried out with girder in shrinkage joint, water-tight is good, construction and installation are easy, can solve fragment-free track slab and hang long problem at large-span structure beam-ends.
Accompanying drawing explanation
Fig. 1 is that beam-ends shrinkage joint facade is arranged schematic diagram.
Fig. 2 is that schematic diagram is arranged in cross section, beam-ends shrinkage joint.
Fig. 3 is beam-ends shrinkage joint anchor bar layout schematic diagram.
Fig. 4 is beam-ends shrinkage joint anchoring full-page proof schematic diagram.
Fig. 5 is crossbeam elevational schematic view.
Fig. 6 is crossbeam I-I schematic diagram.
In figure, 1-ball-type is fixed steel support, 2-ball-type longitudinally-moving steel support, 3-steel plate anchor bar, 4-anchor bar, 5-i shaped steel longeron, 6-active fly ash concrete slab, 7-beam body pre-embedded steel slab, 8-track plates, 9-rubber fastening band, 10-waterstop anchor bolt, 11-beam body, 12-WELDING STUDS.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is described in detail.
The utility model relates to a kind of Railway Prestressed Concrete partial cable-stayed bridge beam-ends shrinkage joint, includes longitudinally adjacent 11 settings of two binding beam body 11, two binding beam bodies and have together the beam seam of longitudinal width, and width is 350mm.
Referring to Fig. 1, the end upper surface that adjacent beams body 11 is relative is provided with beam-ends notch, on the shoulder face of the beam-ends notch of beam seam both sides, is all fixed with transversely arranged multiple steel supports, and both sides all arrange two horizontal row's steel supports, 11 of every rows, and longitudinally relative.It is the fixing steel support 1 of ball-type that beam stitches fixing steel support on a curb girder end slot mouth shoulder face, and on beam seam opposite side beam-ends notch shoulder face, fixing steel support is longitudinally-moving steel support 2.
Referring to Fig. 2, every group of longitudinal steel support top is fixed with i shaped steel longeron 5 one, and Gong11 road, can effectively solve track plates beam-ends and hang long problem.The concrete fixed form of steel support is: referring to Fig. 1 and Fig. 3, be provided with beam body pre-embedded steel slab 7 on the shoulder face of beam-ends notch, the lower shoe of steel support welds mutually with beam body pre-embedded steel slab 7, makes steel support be fixed on the shoulder face of beam-ends notch.The bottom wing listrium of steel support upper plate and i shaped steel longeron 5 is thought welding.Beam body pre-embedded steel slab 7 belows are welded with many steel plate anchor bars 3 longitudinal, that be embedded in advance Liang Tizhong, and steel plate anchor bar 3 is bent into " Jiong " font, end bending, and bending place arranges horizontal anchor bar 4, connects whole row's steel plate anchor bar 3, referring to Fig. 3.I shaped steel longeron 5 can be in the time that beam body 11 be out of shape free-extension, and reserved 20cm gap between i shaped steel longeron 5 and adjacent orbit plate 8, while preventing that i shaped steel longeron 5 is flexible and track plates 8 base diebacks.
I shaped steel longeron 5 tops are provided with active fly ash concrete slab 6, between i shaped steel longeron 5 and active fly ash concrete slab 6, are connected by WELDING STUDS 12.Referring to Fig. 5 and Fig. 6, the longitudinal groove of multiple tracks is offered in active fly ash concrete slab 6 bottoms, i shaped steel longeron 5 top card in above-mentioned groove, lateral deflection that can restricted activity fly ash concrete plate 6.On the contact surface of i shaped steel longeron 5 and groove notch, be provided with damping rubber cushion block.The track plates 8 that active fly ash concrete slab 6 end faces and beam body 11 tops arrange is contour.The reserved 1cm of i shaped steel longeron 5 bottom surfaces and beam body 11 end faces space, reduces the resistance of i shaped steel longeron 5 when flexible.The material property that active fly ash concrete slab 6 is good can adapt to higher force request, and its end face and track plates 8 end faces are with high, to connect the double part-structure that does track plates of active fly ash concrete slab 6 with adjacent orbit plate 8 is suitable.
Between beam seam, be provided with rubber fastening band 9, rubber fastening band 9 edges are fixed on by waterstop anchor bolt 10 on the shoulder face of beam-ends notch, can effectively prevent that rainwater from infiltrating.
It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model manual, is claim of the present utility model and contains.
Claims (5)
1. a Railway Prestressed Concrete partial cable-stayed bridge beam-ends shrinkage joint, is characterized in that:
Include longitudinally two adjacent binding beam bodies (11), the beam seam together with longitudinal width is set between two binding beam bodies (11), the end upper surface that adjacent beams body (11) is relative is provided with beam-ends notch;
On the shoulder face of the beam-ends notch of beam seam both sides, be all fixed with transversely arranged multiple steel supports, and longitudinally relative, and every group of longitudinal steel support top is fixed with one i shaped steel longeron (5).
2. a kind of Railway Prestressed Concrete partial cable-stayed bridge beam-ends according to claim 1 shrinkage joint, is characterized in that:
On the shoulder face of beam-ends notch, be provided with beam body pre-embedded steel slab (7), the lower shoe of steel support welds mutually with beam body pre-embedded steel slab (7), makes steel support be fixed on the shoulder face of beam-ends notch; Steel support upper plate welds mutually with the bottom wing listrium of i shaped steel longeron (5);
Beam body pre-embedded steel slab (7) below is welded with many steel plate anchor bars (3) longitudinal, that be embedded in advance Liang Tizhong, steel plate anchor bar (3) is bent into " Jiong " font, end bending, bending place arranges horizontal anchor bar (4), connects whole row's steel plate anchor bar (3).
3. a kind of Railway Prestressed Concrete partial cable-stayed bridge beam-ends according to claim 2 shrinkage joint, is characterized in that:
It is the fixing steel support (1) of ball-type that beam stitches fixing steel support on a curb girder end slot mouth shoulder face, and on beam seam opposite side beam-ends notch shoulder face, fixing steel support is longitudinally-moving steel support (2).
4. a kind of Railway Prestressed Concrete partial cable-stayed bridge beam-ends according to claim 3 shrinkage joint, is characterized in that:
I shaped steel longeron (5) top is provided with active fly ash concrete slab (6), between i shaped steel longeron (5) and active fly ash concrete slab (6), is connected by WELDING STUDS (12); The longitudinal groove of multiple tracks is offered in active fly ash concrete slab (6) bottom, and i shaped steel longeron (5) top card is in above-mentioned groove;
The track plates (8) that active fly ash concrete slab (6) end face and beam body (11) top arrange is contour.
5. a kind of Railway Prestressed Concrete partial cable-stayed bridge beam-ends according to claim 4 shrinkage joint, is characterized in that:
Between beam seam, be provided with rubber fastening band (9), rubber fastening band (9) edge is fixed on the shoulder face of beam-ends notch by waterstop anchor bolt (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320748591.1U CN203593957U (en) | 2013-11-25 | 2013-11-25 | Expansion joint of railway prestressed concrete partial cable-stayed bridge end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320748591.1U CN203593957U (en) | 2013-11-25 | 2013-11-25 | Expansion joint of railway prestressed concrete partial cable-stayed bridge end |
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| Publication Number | Publication Date |
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| CN203593957U true CN203593957U (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320748591.1U Withdrawn - After Issue CN203593957U (en) | 2013-11-25 | 2013-11-25 | Expansion joint of railway prestressed concrete partial cable-stayed bridge end |
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| CN (1) | CN203593957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590329A (en) * | 2013-11-25 | 2014-02-19 | 中铁第一勘察设计院集团有限公司 | Expansion joint of railway prestressed concrete portion cable-stayed bridge beam end |
| CN117268915A (en) * | 2023-09-21 | 2023-12-22 | 同济大学 | Rigid pavement joint performance evaluation method based on joint width monitoring |
-
2013
- 2013-11-25 CN CN201320748591.1U patent/CN203593957U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590329A (en) * | 2013-11-25 | 2014-02-19 | 中铁第一勘察设计院集团有限公司 | Expansion joint of railway prestressed concrete portion cable-stayed bridge beam end |
| CN103590329B (en) * | 2013-11-25 | 2015-12-02 | 中铁第一勘察设计院集团有限公司 | Railway Prestressed Concrete partial cable-stayed bridge beam-ends shrinkage joint |
| CN117268915A (en) * | 2023-09-21 | 2023-12-22 | 同济大学 | Rigid pavement joint performance evaluation method based on joint width monitoring |
| CN117268915B (en) * | 2023-09-21 | 2024-05-03 | 同济大学 | Rigid pavement joint performance evaluation method based on joint width monitoring |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140514 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |