CN112281645B - Unit beam type multidirectional displacement telescopic device - Google Patents
Unit beam type multidirectional displacement telescopic device Download PDFInfo
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- CN112281645B CN112281645B CN202011188697.1A CN202011188697A CN112281645B CN 112281645 B CN112281645 B CN 112281645B CN 202011188697 A CN202011188697 A CN 202011188697A CN 112281645 B CN112281645 B CN 112281645B
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 54
- 238000013016 damping Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 238000004873 anchoring Methods 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000035939 shock Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 230000009191 jumping Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/062—Joints having intermediate beams
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/065—Joints having sliding plates
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Abstract
The invention discloses a unit beam type multidirectional displacement telescopic device which comprises a unit beam, a damping displacement support, a back-off chain plate, a concrete end support bracket, a guy cable device, a limiting device and a water stopping device, wherein the unit beam is connected with the back-off chain plate through a connecting rod; the unit beams are respectively fixed on support brackets at two sides of the beam end and supported by adopting a damping displacement support, and a limiting device and a cable device are arranged between the movable unit beams to control transverse deformation; the unit beams are staggered, guided and telescopic in a sliding manner, so that the seam crossing telescopic function of the telescopic device is realized; the back-off chain plate is connected at the end part of the telescopic unit beam and is arranged between the fixed unit beams, the bottom of the back-off chain plate is buckled with the fixed unit beams, and the unit beams and the back-off chain plate form a cross beam seam construction plane which is parallel and level to the road surface, so that smooth passing of vehicles is ensured. The invention improves the driving comfort, reduces the structural size of the bridge expansion joint mounting groove, reduces the shock absorption and the noise reduction, meets the requirements of the beam body on multidirectional displacement and the large-span bridge structure displacement, and is convenient to install, replace and maintain due to the unitized design.
Description
Technical Field
The invention belongs to the technical field of bridge expansion and contraction, and particularly relates to a unit beam type multidirectional displacement expansion and contraction device.
Background
The telescopic device is required to be used on the bridge to meet the telescopic requirement of the bridge. The expansion device is a key part in a bridge member and plays an important role in realizing the function of the bridge. The common bridge expansion device is provided with a plate type rubber expansion device, a section steel modulus type expansion device, a comb plate type expansion device and the like. In the process of construction and operation of the bridge, the bridge beam end can deform under the actions of vehicle load, the contraction and creep of the bridge material, foundation settlement, wind load and the like.
The profile steel modulus formula telescoping device in the existing market, its longitudinal extension clearance that exists is big, flexible uneven, the impact force is concentrated, the car jump is serious, the concrete is breakable, flexible part spoilage is high, manufacturing cost is big, design reserve groove depth phenomenon such as deep is comparatively outstanding. In particular to a suspension bridge, a cable-stayed bridge, an inclined bridge and a bent bridge, because the bridge structure inevitably has multidirectional displacement, the defect that the requirement of transverse and multidirectional displacement is not met is seriously exposed in the using process. The bridge module type expansion device is difficult to meet the requirement of multidirectional displacement of a cable-stayed bridge, a suspension bridge and the like with high requirements on vertical deformation and large longitudinal and transverse displacement. The expansion joint of the comb plate is low in steel plate building height, poor in bending resistance, and prone to causing vibration, looseness and plate breakage due to uneven installation, and the comb plate with the deflection structure has the situation that two points of supports and the plate end are tilted after deflection, so that driving safety is affected.
Disclosure of Invention
The invention aims to provide a unit beam type multidirectional displacement telescopic device adopting a modular and unit design.
The purpose of the invention can be realized by the following technical scheme: the unit beam type multidirectional displacement telescopic device comprises a unit beam, a damping multidirectional displacement support, a back-off panel, a concrete end supporting bracket, a guy cable device, a limiting device and a water stopping device, wherein the unit beam is divided into a fixed unit beam and a telescopic unit beam, and the fixed unit beam is arranged on the damping multidirectional displacement support of the concrete end supporting bracket;
the telescopic unit beams are arranged on the shock absorption multidirectional displacement support of the steel beam side support bracket flat plate, the fixed unit beams are arranged on the shock absorption multidirectional displacement support of the concrete end support bracket, a limiting device is arranged between the telescopic unit beams, and a transverse inhaul cable device is arranged at the bottom of the telescopic unit beams;
furthermore, limit devices are arranged on two sides of the end, close to the beam end, of each telescopic unit beam, the telescopic unit beams and the fixed unit beams are staggered, guided and telescopic mutually, a reversing panel is arranged between the telescopic unit beams and the fixed unit beams, a telescopic end cover plate is fixed at the end part, a sealing strip is arranged between the telescopic end cover plate and the vertical plate of the support bracket, the cross section of each telescopic unit beam is I-shaped, contact plates are extended from two sides of each fixed unit beam to be in contact with the inner surface of each telescopic unit beam and slide in a guiding mode, and a guide rail sliding pair is arranged between the unit beams.
Furthermore, the rubber sleeves of the limiting device are arranged on two sides of the limiting frame and clamped into the limiting frame, the other end of the rubber sleeve is connected with the support bracket vertical plate through bolts, and the limiting device limits transverse torsion and longitudinal vehicle load displacement of the telescopic unit beam.
Further, the back-off link joint is established ties through the back-off panel connecting axle and is constituteed to the back-off panel, back-off link joint one end is connected at flexible unit beam-ends portion, arranges in between the fixed unit roof beam, bottom and the mutual lock joint of fixed unit roof beam, the back-off link joint is along with flexible unit roof beam longitudinal sliding, and road surface length changes along with flexible, and the girder end is arranged perpendicularly after the guide of concrete end support bracket is passed through to the change section region, the balancing weight is connected to the back-off link joint other end, back-off link joint and unit roof beam form with the bridge seam structure plane of road parallel and level.
Furthermore, the front of the inverted panel is provided with a protruding block with a hole, the rear of the inverted panel is provided with a groove with a hole, the front and the rear of the inverted panel are connected in series through a connecting shaft, and the bottom of the inverted panel is provided with an inverted T-shaped structure and is buckled on a contact plate on a fixed unit beam.
Furthermore, the damping multidirectional displacement support is formed by compounding, vulcanizing and molding an upper steel plate, a lower steel plate, a middle steel plate and rubber, wherein the upper steel plate and the lower steel plate are provided with anchor bolts, the upper part of the support is fixed with the telescopic unit beam and the fixed unit beam bottom plate by the anchor bolts, and the lower part of the support is connected with the support bracket flat plate.
Furthermore, the concrete end support frame is composed of an anchoring plate, a guide vertical plate, a limiting vertical plate, an upper guide plate, a lower guide plate and a bracket supporting plate, wherein the bottom and the rear side of the guide vertical plate are connected with the anchoring plate, the front side of the guide vertical plate is connected with the limiting vertical plate, square through holes are formed among the limiting vertical plate, the guide vertical plate, the upper guide plate and the lower guide plate, a plurality of through holes are formed in the rear part of the anchoring plate, and transverse steel bars are connected with steel bars in a beam end groove in a transverse mode for anchoring to form a concrete beam end support bracket anchoring system.
Furthermore, the transverse inhaul cable device is composed of a base, a pressing plate, an inhaul cable and an anchoring bolt, wherein the base is fixed at the bottom of the fixed unit beam, the inhaul cable is fixed on the base through the pressing plate, and the fixed unit beam is transversely connected in series through the inhaul cable for limiting.
Furthermore, the vertical plate of the support bracket is fixed with the flat plate of the support bracket, the stiffening plate of the support bracket is fixed with the flat plate of the support bracket and the steel beam end, the vertical plate of the support bracket is tightly attached to the steel beam end, and the flat plate of the support bracket is provided with a damping multidirectional displacement support.
Furthermore, the water stop device consists of a water stop belt, a water stop belt pressing plate and screws, wherein the water stop belt is fixed on the support bracket flat plate at two sides of the beam end and the end surface of the bracket supporting plate respectively by the water stop belt pressing plate and the screws.
The invention has the beneficial effects that:
(1) the unit beam type multidirectional displacement telescopic device adopts the longitudinally arranged unit beams which are transversely arranged in parallel, and the inverted chain plates are arranged between the unit beams, so that the net spacing of transverse arrangement is reduced, and steps and gaps in the driving direction of a vehicle are avoided, thereby avoiding the occurrence of vehicle jumping and noise.
(2) The seam structure is striden to telescoping device adopts the unit roof beam form, has increased the structure building height, has improved the material and has utilized the overall arrangement, has increased structure bending resistance, has improved structure security performance.
(3) The bottom of the unit beam is provided with a damping multidirectional displacement support, so that the impact effect of vehicle load on the telescopic device and the bridge can be reduced, the unit beam can adapt to the telescopic device along with the expansion, plane rotation, vertical rotation and transverse rotation of the bridge, the projecting or sinking of the structure of the telescopic device can not be generated, the driving safety and the vehicle jumping can not be influenced, the surface is always smooth, and the driving smoothness and safety are facilitated.
(4) The invention solves the problems of serious vehicle jumping, high driving noise and poor uniform displacement capability of the traditional modulus type expansion device, also solves the problems of large size of a comb seam installation groove, high installation precision requirement, unsuitable pedestrian passing through a seam type comb plate seam and the like, can improve driving comfort, reduce the structural size of a bridge expansion joint installation groove, reduce vibration and noise, meet the requirements of multidirectional displacement of a beam body and displacement of a large-span bridge structure, and is convenient to install, replace and maintain due to unitized design.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of a telescoping device according to the present invention in elevation;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an axial schematic view of the telescoping device of the present invention;
FIG. 4 is a partial schematic view of the telescoping device of the present invention with the telescoping end cover removed
FIG. 5 is a cross-sectional view A-A of FIG. 2;
FIG. 6 is a partial cross-sectional view taken along line B-B of FIG. 2;
FIG. 7 is a schematic view of a concrete beam attachment support bracket;
FIG. 8 is a schematic elevation view of a concrete beam attachment support bracket;
FIG. 9 is a schematic view of an inverted panel;
FIG. 10 is a schematic view of a shock absorbing deflection mount;
the labels in the figure are: 1. a telescoping unit beam; 1-1, a guide rail sliding pair; 2. fixing the unit beam; 3. a back-off panel; 3-1, connecting shaft; 4. a telescopic end cover plate; 5. a steel beam end; 6. a support bracket vertical plate; 7. a damping multidirectional displacement support; 7-1, anchoring bolts; 8. a limiting device; 8-1, rubber sleeve; 8-2, a limiting frame; 8-3, fixing bolts; 9. a support bracket plate; 10. a support bracket stiffener plate; 11. a water stop; 12. a water stop pressing plate; 13. a screw; 14. a concrete end support bracket; 14-1, an anchor plate; 14-2, a guide vertical plate; 14-3, a limiting vertical plate; 14-4, an upper guide plate; 14-5, a lower guide plate; 14-6, a bracket supporting plate; 15. a balancing weight; 16. transverse reinforcing steel bars; 17. a concrete beam end; 18. a base; 19. pressing a plate; 20. a cable; 21. a sealing strip.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-10, the invention is a unit beam type multidirectional displacement telescopic device, which comprises a unit beam, a damping multidirectional displacement support 7, a back-off panel 3, a concrete end support bracket 14, a cable device, a limiting device 8 and a water stopping device, wherein the unit beam is divided into a fixed unit beam 2 and a telescopic unit beam 1, and the fixed unit beam 2 is arranged on the damping multidirectional displacement support 7 of the concrete end support bracket 14;
the telescopic unit beams 1 are arranged on a damping multidirectional displacement support 7 of a steel beam side support bracket flat plate 9, the fixed unit beams 2 are arranged on the damping multidirectional displacement support 7 of a concrete end support bracket 14, a limiting device 8 is arranged between the telescopic unit beams 1, a transverse inhaul cable device is arranged at the bottom of the telescopic unit beams, the unit beams are transversely connected into a whole, transverse displacement is limited, and driving safety is ensured;
the nearly beam-ends both sides in flexible unit roof beam 1 end are provided with stop device 8, flexible unit roof beam 1 and fixed unit roof beam 2 crisscross each other, mutual direction, slip flexible each other are provided with back-off panel 3 between, the flexible end cover board 4 of end fixing, set up sealing strip 21 between flexible end cover board 4 and support bracket riser 6 the cross-section of flexible unit roof beam 1 is "worker" style of calligraphy, and the upper contact board restriction back-off panel reciprocates, the back-off panel longitudinal movement under the upper contact board is spacing prevents to drop the dislocation.
The back-off link joint is constituteed through back-off panel connecting axle 3-1 series connection to back-off panel 3, back-off link joint one end is connected at 1 tip of flexible unit roof beam, arranges in between fixed unit roof beam 2, bottom and the mutual lock joint of fixed unit roof beam 2, the back-off link joint is along with flexible unit roof beam 1 longitudinal sliding, and road surface length changes along with flexible, and the girder end is arranged perpendicularly in after the change section region leads through concrete end support bracket 14, balancing weight 15 is connected to the back-off link joint other end, back-off link joint and unit roof beam form with the bridge seam structure plane of road parallel and level, ensure the smooth-going safety.
The front of the inverted panel 3 is provided with a protruded block with holes, the rear is provided with a groove with holes, the front and the rear are connected in series through a connecting shaft 3-1, the bottom is provided with an inverted T-shaped structure, and the inverted T-shaped structure is buckled on a contact plate on the fixed unit beam 2, so that the vertical jumping caused by the running of a vehicle is prevented, and the running safety is improved.
The damping multidirectional displacement support 7 is formed by compounding, vulcanizing and molding an upper steel plate, a lower steel plate, a middle steel plate and rubber, wherein the rubber has the damping and flexible connecting functions and can realize the bearing and rotating functions, the upper steel plate and the lower steel plate of the support are provided with anchor bolts 7-1, the upper part of the support is fixed with the bottom plates of the telescopic unit beam 1 and the fixed unit beam 2 by the anchor bolts 7-1, and the lower part of the support is connected with the support bracket flat plate 9.
The concrete end support bracket 14 is composed of an anchoring plate 14-1, a guide vertical plate 14-2, a limiting vertical plate 14-3, an upper guide plate 14-4, a lower guide plate 14-5 and a bracket supporting plate 14-6, the bottom and the rear side of the guide vertical plate 14-2 are connected with the anchoring plate 14-1, the front side is connected with the limiting vertical plate 14-3, square through holes are formed among the limiting vertical plate 14-3, the guide vertical plate 14-2, the upper guide plate 14-4 and the lower guide plate 14-5, a plurality of through holes are formed in the rear part of the anchoring plate 14-1, and transverse steel bars 16 are connected and anchored with steel bars in a beam end groove to form a concrete beam end support bracket anchoring system.
The transverse inhaul cable device is composed of a base 18, a pressing plate 19, inhaul cables 20 and fixing bolts, the base 18 is fixed to the bottom of the fixed unit beam 2, the pressing plate 19 fixes the inhaul cables 20 on the base 18, the inhaul cables 20 enable the fixed unit beam 2 to be transversely connected in series for limiting, integrity of the telescopic device is kept, and the unit beam can be prevented from falling off and then falling off.
The supporting bracket vertical plate 6 is fixed with the supporting bracket flat plate 9, the supporting bracket stiffening plate 10 is fixed with the supporting bracket flat plate 9 and the steel beam end 5, the supporting bracket vertical plate 6 is tightly attached to the steel beam end 5, and the supporting bracket flat plate 9 is provided with a damping multidirectional displacement support 7.
The water stop device consists of a water stop belt 11, a water stop belt pressing plate 12 and screws 13, wherein the water stop belt 11 is fixed on the end faces of the support bracket flat plate 9 and the bracket supporting plate 14-6 on the two sides of the beam end by the water stop belt pressing plate 12 and the screws 13 respectively, so that water between beam joints is prevented from falling into the bottom of the beam joints, and the use environment of a component on the lower part of a bridge is prevented from being influenced.
The unit beam type multidirectional displacement telescopic device adopts the unit beams which are longitudinally arranged and are transversely arranged in parallel, and the inverted chain plates are arranged between the unit beams, so that the net spacing of transverse arrangement is reduced, and steps and gaps in the driving direction of a vehicle are avoided, thereby avoiding the occurrence of vehicle jumping and noise. The seam structure is striden to telescoping device adopts the unit roof beam form, has increased the structure building height, has improved the material and has utilized the overall arrangement, has increased structure bending resistance, has improved structure security performance. The bottom of the unit beam is provided with a damping multidirectional displacement support, so that the impact effect of vehicle load on the telescopic device and the bridge can be reduced, the unit beam can adapt to the telescopic device along with the expansion, plane rotation, vertical rotation and transverse rotation of the bridge, the projecting or sinking of the structure of the telescopic device can not be generated, the driving safety and the vehicle jumping can not be influenced, the surface is always smooth, and the driving smoothness and safety are facilitated.
The invention solves the problems of serious vehicle jumping, high driving noise and poor uniform displacement capability of the traditional modulus type expansion device, also solves the problems of large size of a comb seam installation groove, high installation precision requirement, unsuitable pedestrian passing through a seam type comb plate seam and the like, can improve driving comfort, reduce the structural size of a bridge expansion joint installation groove, reduce vibration and noise, meet the requirements of multidirectional displacement of a beam body and displacement of a large-span bridge structure, and is convenient to install, replace and maintain due to unitized design.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (7)
1. Unit beam type multidirectional displacement telescopic device is characterized in that: the unit beam type multidirectional displacement telescopic device comprises a unit beam, a damping multidirectional displacement support (7), a back-off panel (3), a concrete end supporting bracket (14), a guy cable device, a limiting device (8) and a water stopping device, wherein the unit beam is divided into a fixed unit beam (2) and a telescopic unit beam (1), and the fixed unit beam (2) is arranged on the damping multidirectional displacement support (7) of the concrete supporting bracket (14);
the telescopic unit beams (1) are arranged on a damping multidirectional displacement support (7) of a steel beam side support bracket flat plate (9), the fixed unit beams (2) are arranged on the damping multidirectional displacement support (7) of a concrete end support bracket (14), a limiting device (8) is arranged between the telescopic unit beams (1), and a transverse cable device is arranged at the bottom of the telescopic unit beams;
limiting devices (8) are arranged on two sides of the near beam end of the telescopic unit beam (1), the telescopic unit beam (1) and the fixed unit beam (2) are staggered, guided and telescopic mutually, a back-off panel (3) is arranged between the telescopic unit beam and the fixed unit beam, a telescopic end cover plate (4) is fixed at the end part of the telescopic unit beam, a sealing strip (21) is arranged between the telescopic end cover plate (4) and a supporting bracket vertical plate (6), the cross section of the telescopic unit beam (1) is I-shaped, contact plates extending out of two sides of the fixed unit beam (2) are in contact with the inner surface of the telescopic unit beam and slide in a guiding manner, and a guide rail sliding pair (1-1) is arranged between the unit beams;
the inverted panel (3) is connected in series through an inverted panel connecting shaft (3-1) to form an inverted chain plate, one end of the inverted chain plate is connected to the end part of the telescopic unit beam (1) and is arranged between the fixed unit beams (2), the bottom of the inverted chain plate is buckled with the fixed unit beams (2), the inverted chain plate longitudinally slides along with the telescopic unit beams (1), the length of a road surface changes along with the expansion, a change section area is vertically arranged at the beam end after being guided by a concrete end supporting bracket (14), the other end of the inverted chain plate is connected with a balancing weight (15), and the inverted chain plate and the unit beams form a cross beam joint structure plane which is level with a road;
the front of the inverted buckle panel (3) is provided with a protruding block with a hole, the rear is provided with a groove with a hole, the front and the rear are connected in series through a connecting shaft (3-1), the bottom is provided with an inverted T-shaped structure, and the inverted T-shaped structure is buckled on a contact plate on the fixed unit beam (2).
2. The unit beam multi-directional displacement telescopic device according to claim 1, wherein: rubber sleeves (8-1) of the limiting device (8) are arranged on two sides of the limiting frame (8-2) and clamped into the limiting frame (8-2), the other end of the limiting device is connected with a fixing bolt (8-3) of a vertical plate (6) of the supporting bracket, and the limiting device (8) limits transverse torsion and longitudinal vehicle load displacement of the telescopic unit beam (1).
3. The unit beam multi-directional displacement telescopic device according to claim 1, wherein: the damping multidirectional displacement support (7) is formed by compounding, vulcanizing and molding an upper steel plate, a lower steel plate, a middle steel plate and rubber, wherein the upper steel plate and the lower steel plate are provided with anchor bolts (7-1), the upper part of the support is fixed with the bottom plates of the telescopic unit beam (1) and the fixed unit beam (2) by the anchor bolts (7-1), and the lower part of the support is connected with the support bracket flat plate (9).
4. The unit beam multi-directional displacement telescopic device according to claim 1, wherein: the concrete end support bracket (14) consists of an anchoring plate (14-1), a guide vertical plate (14-2), a limiting vertical plate (14-3), an upper guide plate (14-4), a lower guide plate (14-5) and a bracket supporting plate (14-6), wherein the bottom and the rear side of the guide vertical plate (14-2) are connected with the anchoring plate (14-1), the front side of the guide vertical plate is connected with the limiting vertical plate (14-3), square through holes are formed among the limiting vertical plate (14-3), the guide vertical plate (14-2), the upper guide plate (14-4) and the lower guide plate (14-5), a plurality of through holes are formed in the rear part of the anchoring plate (14-1), and transverse steel bars (16) are connected with steel bars in a beam end groove to be anchored to form a concrete beam end support bracket anchoring system.
5. The unit beam multi-directional displacement telescopic device according to claim 1, wherein: the transverse inhaul cable device is composed of a base (18), a pressing plate (19), inhaul cables (20) and fixing bolts, wherein the base (18) is fixed at the bottom of the fixed unit beam (2), the pressing plate (19) fixes the inhaul cables (20) on the base (18), and the inhaul cables (20) enable the fixed unit beam (2) to be transversely connected in series for limiting.
6. The unit beam multi-directional displacement telescopic device according to claim 1, wherein: the support bracket vertical plate (6) is fixed with the support bracket flat plate (9), the support bracket stiffening plate (10) is fixed with the support bracket flat plate (9) and the steel beam end (5), the support bracket vertical plate (6) is tightly attached to the steel beam end (5), and the support bracket flat plate (9) is provided with a damping multidirectional displacement support (7).
7. The unit beam multi-directional shift telescopic device according to claim 4, wherein: the water stop device is composed of a water stop belt (11), a water stop belt pressing plate (12) and screws (13), wherein the water stop belt (11) is fixed on the support bracket flat plate (9) and the bracket supporting plate (14-6) end faces on the two sides of the beam end by the water stop belt pressing plate (12) and the screws (13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188697.1A CN112281645B (en) | 2020-10-30 | 2020-10-30 | Unit beam type multidirectional displacement telescopic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188697.1A CN112281645B (en) | 2020-10-30 | 2020-10-30 | Unit beam type multidirectional displacement telescopic device |
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| Publication Number | Publication Date |
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| CN112281645A CN112281645A (en) | 2021-01-29 |
| CN112281645B true CN112281645B (en) | 2021-12-07 |
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| CN202011188697.1A Active CN112281645B (en) | 2020-10-30 | 2020-10-30 | Unit beam type multidirectional displacement telescopic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE928048C (en) * | 1953-02-19 | 1955-05-23 | Dortmunder Union Brueckenbau A | Gap cover for bridges and similar structures |
| DE1256245B (en) * | 1962-12-05 | 1967-12-14 | Gutehoffnungshuette Sterkrade | Covering device for expansion joints in bridges and similar structures |
| EP1719839A3 (en) * | 2005-05-03 | 2009-11-04 | RW Sollinger Hütte GmbH | Roller cover for road joints |
| CN105463987B (en) * | 2015-12-30 | 2017-11-28 | 中铁第四勘察设计院集团有限公司 | Modularization, big corner, multi-directional deflection retractor device and bridge |
| CN105507141A (en) * | 2016-01-20 | 2016-04-20 | 常熟市双惠路桥工程构件有限公司 | Bridge expansion joint device |
| CN107190641B (en) * | 2017-07-06 | 2019-06-04 | 陕西恒宇工程材料有限公司 | A kind of modular multi-directional deflection comb plate bridge expansion device of very large displacement |
| CN109594469A (en) * | 2018-11-16 | 2019-04-09 | 宁波路宝科技实业集团有限公司 | A kind of bridge expansion joint installation |
| CN109457601B (en) * | 2018-11-26 | 2020-08-25 | 重庆工程职业技术学院 | Protective structure of highway bridge |
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2020
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| CN112281645A (en) | 2021-01-29 |
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