CN103821082A - Double-connecting-rod mechanism for controlling expansion joint middle beams to be arranged at equal intervals - Google Patents
Double-connecting-rod mechanism for controlling expansion joint middle beams to be arranged at equal intervals Download PDFInfo
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- CN103821082A CN103821082A CN201410115300.4A CN201410115300A CN103821082A CN 103821082 A CN103821082 A CN 103821082A CN 201410115300 A CN201410115300 A CN 201410115300A CN 103821082 A CN103821082 A CN 103821082A
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- connecting rod
- central sill
- equal intervals
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Abstract
The invention discloses a double-connecting-rod mechanism for controlling expansion joint middle beams to be arranged at equal intervals. The double-connecting-rod mechanism comprises a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are arranged below the middle beams and connected through a rotary shaft, the free end of the first connecting rod and the free end of the second connecting rod are connected with hinge pins anchored in concrete in a rotary mode, a plurality of sliding rods are arranged on the first connecting rod at equal intervals, a plurality of sliding rods are arranged on the second connecting rod at equal intervals, and each middle beam is connected with the corresponding sliding rod in a matched mode through a sliding chute connected with the middle beam. According to the structure of a bridge expansion joint, the separation distances between all the middle beams are controlled through the double-connecting-rod mechanism, and compared with a traditional mode that the separation distances between middle beams are controlled through elastic control components, it is ensured that the separation distances of the middle beams are equal; according to the structure, replacement is convenient, maintenance is easy, and durability of the bridge expansion joint can be greatly improved.
Description
Technical field
The present invention relates to bridge expanssion joint field, be specifically related to a kind of equally spaced double connecting rod of shrinkage joint central sill of controlling.
Background technology
Bridge expanssion joint refers to the requirement for meeting bridge floor distortion, by between two beam-ends, shrinkage joint is set between beam-ends and abutment or in the articulated position of bridge, generally adopts modulus type shrinkage joint for Longspan Bridge.Generally there are two kinds of form of structure at existing modulus type shrinkage joint, multi-support type and single support type, multi-support type adopts crossbeam and central sill frame mode one to one, a displacement controlling box arranges multiple bearing cross beams, and same middle joist steel of each bearing cross beam fixed, in the situation that stroke requirement is larger, its central sill and crossbeam are more, displacement controlling box is also very large, is just difficult to realize manufacturing and install, and is no more than the situation of 560 ㎜ so the modulus shrinkage joint of multi-support type can only be applicable to displacement; The all central sills of single support type are all supported on same bearing cross beam, and can slide along bearing cross beam direction, and bearing cross beam is supported in the displacement controlling box at two ends.
In existing bridge modulus expanded joint structure, wherein case bay adopts Compress Spring or the mutual compressive force of shear spring or shearing force balance to regulate, and in big displacement quantity situation, crossbeam frictional resistance increases, spring regulating power declines relatively, very easily occurs each beam non-uniform phenomenon that stretches.And control spring generally adopts macromolecular material to make, long-time use is easily aging, and its elastic performance reduces, and can not accurately guarantee that central sill seam broad gap is consistent, likely cause the water-proof sealing rubber strip between central sill to tear, had a strong impact on the endurance quality of expanded joint structure.Adopt the uniform mechanism structure complexity of control spring control, each control spring, by central sill balance internal force, after a certain central sill destroys, is difficult for removing separately this central sill, and needs to change whole shrinkage joint, brings great inconvenience to maintenance.
Summary of the invention
In view of this, the object of this invention is to provide a kind of equally spaced double connecting rod of shrinkage joint central sill of controlling, can guarantee in the lower case bay of any stroke unanimously, greatly improve the endurance quality of expanded joint structure.
The present invention addresses the above problem by following technological means: a kind of equally spaced double connecting rod of shrinkage joint central sill of controlling, comprise two side bars and be arranged on many central sills between two side bars, between side bar and central sill and between central sill, there is water-proof sealing rubber strip, central sill is supported on many crossbeams, described central sill is connected with holddown spring and crossbeam by support spring, crossbeam two ends are arranged in displacement controlling box by bearing, also comprise and being arranged on below central sill, the first connecting rod connecting by rotating shaft and second connecting rod, the free end of first connecting rod and second connecting rod is rotationally connected with the bearing pin being anchored in mixed earth, described first connecting rod and second connecting rod equal intervals are provided with many slide bars, all central sills are respectively connected with slide bar coupling by a connected chute.
Further, the equally spaced double connecting rod in described control central sill shrinkage joint is according to two covers of shrinkage joint length setting or overlaps more.
Beneficial effect of the present invention: the equally spaced double connecting rod of control of the present invention shrinkage joint central sill, comprise and being arranged on below central sill, the first connecting rod connecting by rotating shaft and second connecting rod, the free end of first connecting rod and second connecting rod is rotationally connected with the bearing pin being anchored in mixed earth, described first connecting rod and second connecting rod equal intervals are provided with many slide bars, all central sills are respectively connected with slide bar coupling by a connected chute, the bridge expanssion joint of this structure, by the spacing of all central sills of double connecting rod control, compared with the traditional spacing of passing through elasticity control element control central sill, can accurately guarantee that the spacing between central sill is consistent, and this structure is changed convenient, safeguard simple, can greatly improve the endurance quality of bridge expanssion joint.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, invention is further described.
Fig. 1 is that intention is overlooked in general assembly of the present invention;
Fig. 2 is A-A structural representation;
Fig. 3 is B-B structural representation.
The specific embodiment
Below with reference to accompanying drawing, the present invention is described in detail, as shown in Figure 1 to Figure 3: the equally spaced double connecting rod of this control shrinkage joint central sill, comprise and be anchored at two side bars 1 of bridge plate seam crossing both sides and be arranged on the many central sills 2 between two side bars, between side bar and central sill and between central sill, there is water-proof sealing rubber strip 3, below side bar and central sill, there are many crossbeams 4, described central sill is connected with beam supporting by bearing 5, crossbeam two ends are connected with displacement controlling box 6 supportings by bearing, also comprise and being arranged on below central sill, the first connecting rod 8 connecting by rotating shaft 7 and second connecting rod 9, the free end of first connecting rod and second connecting rod is rotationally connected with the bearing pin 10 being anchored in mixed earth, described first connecting rod and second connecting rod equal intervals are provided with many slide bars 11, all central sills are respectively connected with slide bar 11 couplings by a connected chute 12, whole stretching device arranges a displacement controlling box 6 every 2m, the length of first connecting rod and second connecting rod can increase with the increase of stroke, by the spacing between double connecting rod control central sill, can make spacing even, greatly improve the endurance of structure.
As the further improvement of technique scheme, central sill equally spaced double connecting rod in described control shrinkage joint is symmetrically arranged many covers, can improve the reliability and stability of spacing control.
Finally explanation is, above embodiment is only unrestricted in order to art scheme of the present invention to be described, although with reference to preferred embodiment to the present invention detailed description, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement art scheme of the present invention, and the aim and the scope that do not depart from the present invention program, it all should be encompassed in the middle of the present invention's profit claimed range.
Claims (2)
1. control the equally spaced double connecting rod of shrinkage joint central sill for one kind, comprise two side bars (1) and be arranged on the many central sills (2) between two side bars, between side bar and central sill and between central sill, there is water-proof sealing rubber strip (3), below side bar and central sill, there are many crossbeams (4), described central sill is connected with beam supporting by bearing (5), crossbeam two ends are connected with displacement controlling box (6) supporting by bearing, it is characterized in that: also comprise and being arranged on below central sill, the first connecting rod (8) and the second connecting rod (9) that connect by rotating shaft (7), the free end of first connecting rod and second connecting rod is rotationally connected with the bearing pin (10) being anchored in mixed earth, described first connecting rod and second connecting rod equal intervals are provided with many slide bars (11), all central sills are respectively connected with slide bar (11) coupling by a connected chute (12).
2. the equally spaced double connecting rod of control according to claim 1 shrinkage joint central sill, is characterized in that: central sill equally spaced double connecting rod in described control shrinkage joint is symmetrically arranged many covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115300.4A CN103821082B (en) | 2014-03-26 | 2014-03-26 | Control the expansion joint equally spaced double connecting rod of central sill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115300.4A CN103821082B (en) | 2014-03-26 | 2014-03-26 | Control the expansion joint equally spaced double connecting rod of central sill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103821082A true CN103821082A (en) | 2014-05-28 |
| CN103821082B CN103821082B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410115300.4A Expired - Fee Related CN103821082B (en) | 2014-03-26 | 2014-03-26 | Control the expansion joint equally spaced double connecting rod of central sill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103821082B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762874A (en) * | 2015-04-08 | 2015-07-08 | 杨皓玮 | Joint expansion and contraction device for assembled bridge and mounting method of joint expansion and contraction device |
| CN108611971A (en) * | 2018-05-09 | 2018-10-02 | 温州中城晟泰市政工程有限公司 | A kind of bridge extension joint |
| CN109629408A (en) * | 2019-01-08 | 2019-04-16 | 中冶南方工程技术有限公司 | A kind of Double slit type expansion joint of comb plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2548257A1 (en) * | 1975-10-28 | 1977-05-05 | Stalko Metallbau Gmbh & Co | Bridge joint gap spanning structure - with connecting guide rods ends mounted on vertically movable hinge joints |
| CN2057427U (en) * | 1989-06-09 | 1990-05-23 | 襄樊市汉江公路桥工程指挥部 | Tumbler auto-controlled device for bridge expansion joints |
| CN2221050Y (en) * | 1995-04-25 | 1996-02-28 | 衡水橡胶股份有限公司 | Bridge extension seem device |
| CN201258460Y (en) * | 2008-09-05 | 2009-06-17 | 毛勒桥梁附件有限公司 | Rotating shaft type bridge expansion device |
-
2014
- 2014-03-26 CN CN201410115300.4A patent/CN103821082B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2548257A1 (en) * | 1975-10-28 | 1977-05-05 | Stalko Metallbau Gmbh & Co | Bridge joint gap spanning structure - with connecting guide rods ends mounted on vertically movable hinge joints |
| CN2057427U (en) * | 1989-06-09 | 1990-05-23 | 襄樊市汉江公路桥工程指挥部 | Tumbler auto-controlled device for bridge expansion joints |
| CN2221050Y (en) * | 1995-04-25 | 1996-02-28 | 衡水橡胶股份有限公司 | Bridge extension seem device |
| CN201258460Y (en) * | 2008-09-05 | 2009-06-17 | 毛勒桥梁附件有限公司 | Rotating shaft type bridge expansion device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762874A (en) * | 2015-04-08 | 2015-07-08 | 杨皓玮 | Joint expansion and contraction device for assembled bridge and mounting method of joint expansion and contraction device |
| CN108611971A (en) * | 2018-05-09 | 2018-10-02 | 温州中城晟泰市政工程有限公司 | A kind of bridge extension joint |
| CN109629408A (en) * | 2019-01-08 | 2019-04-16 | 中冶南方工程技术有限公司 | A kind of Double slit type expansion joint of comb plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103821082B (en) | 2016-08-24 |
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Granted publication date: 20160824 Termination date: 20180326 |