CN211547311U - Steel wire rope damping and shock-absorbing expansion joint and bridge - Google Patents

Steel wire rope damping and shock-absorbing expansion joint and bridge Download PDF

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Publication number
CN211547311U
CN211547311U CN201921867192.0U CN201921867192U CN211547311U CN 211547311 U CN211547311 U CN 211547311U CN 201921867192 U CN201921867192 U CN 201921867192U CN 211547311 U CN211547311 U CN 211547311U
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wire rope
steel wire
expansion joint
bridging
structures
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万维东
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Wuhan Dongjiu Yonghuan Engineering Technology Co ltd
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Wuhan Dongjiu Yonghuan Engineering Technology Co ltd
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Abstract

The utility model discloses a wire rope damping shock attenuation expansion joint and bridge. The steel wire rope damper comprises a steel wire rope damper and two anchoring structures which are symmetrically arranged, wherein the steel wire rope damper is fixed between the two anchoring structures, the top edge of one side, opposite to the two anchoring structures, of the two anchoring structures is provided with a side longitudinal beam, a waterproof structure is arranged between the two side longitudinal beams, and the steel wire rope damper and the side longitudinal beams are arranged in parallel to the side walls of the anchoring structures. The utility model adopts the steel wire rope damper as the energy dissipation component, so that the expansion joint has the energy dissipation and shock absorption functions and the structure is simple; the telescopic function is achieved by utilizing the telescopic effect of the cross bracing support system, the deflection requirement of the engineering structure during temperature change is met, the movement is more flexible, the structure is novel, and the installation and the maintenance are very convenient.

Description

Steel wire rope damping and shock-absorbing expansion joint and bridge
Technical Field
The utility model belongs to the technical field of civil engineering, concretely relates to wire rope damping expansion joint and bridge.
Background
"expansion and contraction" is the most fundamental physical property of a structure or structural member. For a bridge structure, when the temperature rises, a beam body can extend; when the temperature is reduced, the beam body can be shortened, the characteristic has important influence on the stress of the bridge structure, and the use and the safety of the structure are influenced, so that the expansion joint can be arranged when the bridge structure reaches a certain length to adapt to the deformation caused by the temperature change.
At present, the common expansion joints of bridges are provided with modulus expansion joints and comb plate expansion joints.
1) Modulus type expansion joint
Each bearing force sliding component (beam, middle beam and support frame) of the modulus type expansion device is supported on an elastic support, and each group of bearing component units adopts an elastic support system of a beam and a displacement system under the combined action of shearing springs connected in series.
When the vehicle passes through the telescopic device, impact loads such as horizontal, vertical and torsional loads are generated. Vertical force and torque are transmitted through the middle beam, the side beam, the cross beam and the elastic support, horizontal acting force is transmitted through the displacement spring, and impact load is safely and reliably transmitted to the beam body and the abutment through the rubber material buffering load.
The displacement control system realizes the uniform control of the seam width by pushing the middle beam to move uniformly by virtue of the displacement springs which are connected in series and symmetrically arranged below the middle beam, so that the seam widths of all units are kept consistent; the symmetrically arranged structure has a double protection function.
The middle beam and the side beam of the telescopic device are provided with the cavities formed by machining, the rubber sealing belt is pre-pressed through the special fixture and embedded in the cavities to be tightly combined with the cavities, rainwater on the bridge floor can be reliably isolated, and the lower part structure of the bridge is prevented from being corroded by the rainwater.
2) Expansion joint of comb plate
The comb plate expansion device mainly comprises a short toothed plate, a long toothed plate, a waterproof sealing belt, a rebound spring, a multidirectional shifting seat, an anchoring bolt and the like. The novel comb plate stretching device adopts a tension-compression spherical support structure, and the rotation of the beam body is realized through the spherical surface. The elastic block at the lower part of the tension and compression support can release predeformation, can compensate the clearance generated after the spherical surfaces are worn, and ensures that the two spherical surfaces are always in a joint state.
The modular expansion joints and the expansion joints of the comb plate are two types of expansion devices which are most widely applied in bridge expansion joint products, are also the most easily damaged components in earthquakes, and are often required to be replaced after the earthquakes. In recent years, the two types of expansion devices make certain technical progress in the aspects of shock absorption and noise reduction through technical innovation, but because of the lack of a clear damping system, the energy dissipation and shock absorption effects of the expansion devices are very limited, and the damage of an earthquake to a structure or the expansion device is not fundamentally overcome.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the deficiencies of the prior art, providing a wire rope damping shock attenuation expansion joint and bridge that simple structure, shock attenuation are effectual.
The utility model adopts the technical proposal that: the utility model provides a wire rope damping shock attenuation expansion joint, includes two anchor structures of wire rope attenuator and symmetrical arrangement, the wire rope attenuator is fixed in between two anchor structures, the relative one side top edge of two anchor structures is equipped with the limit longeron, sets up waterproof construction between two limit longerons, wire rope attenuator and limit longeron all are on a parallel with the anchor structure lateral wall and arrange.
Further, still including being fixed in the top layer bridging braced system between two anchor structures, top layer bridging braced system includes well longeron, floorbar, slider and two rows of bridging structures, two rows of bridging structures distribute in the both ends of well longeron, set up a plurality of wire rope dampers between two rows of bridging structures, the top and the one end of side longeron and well longeron of bridging structure are connected, and the bottom and the floorbar one end and the slider of bridging structure are connected, the slider can vertically slide.
Furthermore, the cross brace structure comprises a plurality of cross braces, the top of one side of each cross brace positioned at the edge is connected with one end of the side longitudinal beam, the bottom of each cross brace positioned at the edge is connected with the sliding block, the top of the other side of each cross brace positioned at the edge is connected with one end of the middle longitudinal beam, and the bottom of each cross brace positioned at the edge is connected with one end of the bottom beam; the top of the middle scissor brace is connected with one end of the middle longitudinal beam, and the bottom of the middle scissor brace is connected with one end of the bottom beam.
Furthermore, the cross brace comprises a first brace rod and a second brace rod, and the middle parts of the first brace rod and the second brace rod are connected through a pin shaft to form an X-shaped structure.
Furthermore, the edges of the side longitudinal beams and the middle longitudinal beams are all linear or the edges of the side longitudinal beams and the middle longitudinal beams are concave-convex shapes matched with each other.
Furthermore, one side of the steel wire rope damper is fixedly connected with the bottom of the middle longitudinal beam, the other side of the steel wire rope damper is fixedly connected with the top of the bottom beam, and the middle longitudinal beam and the bottom beam are vertically arranged correspondingly.
Further, still include one or more bottom bridging braced system, bottom bridging braced system sets up in top layer bridging braced system's below, and when including a plurality of bottom bridging braced system, a plurality of bottom bridging braced system arrange from top to bottom along gap depth direction, set up one or more wire rope attenuator in the bottom bridging braced system, be connected through floorbar and slider between bottom bridging braced system and the top layer bridging braced system, connect through round pin axle and slider between the adjacent bottom bridging braced system.
Furthermore, one side of the steel wire rope damper is fixed on a first connecting node between two corresponding scissors braces in the two rows of scissors brace structures, the other side of the steel wire rope damper is fixed on a second connecting node between the other two corresponding scissors braces in the two rows of scissors brace structures, the first connecting node and the second connecting node are arranged adjacently or across the nodes, and the first connecting node and the second connecting node are arranged horizontally, obliquely or vertically.
Furthermore, two sides of the steel wire rope damper are respectively and fixedly connected with the front baffle plates of the two anchoring structures.
Further, the steel wire rope damper comprises a first rope clamp, a second rope clamp and a steel wire rope, wherein the first rope clamp, the second rope clamp and the steel wire rope are of linear structures, the first rope clamp, the second rope clamp and the steel wire rope are arranged in parallel to the side wall of the anchoring structure, and the steel wire rope is fixed between the first rope clamp and the second rope clamp.
Further, the steel wire rope is a linear structure formed by spirally winding steel wire rope strands.
Further, wire rope includes the wire rope circle of a plurality of separations, and a plurality of wire rope circles are the linear type and distribute, and the one end of a plurality of wire rope circles all is fixed in on the first rope clip, and the other end of a plurality of wire rope circles all is fixed in on the second rope clip.
Further, the anchor structure includes apron, bottom plate, swash plate, preceding baffle and curb plate, apron, bottom plate, swash plate, preceding baffle and curb plate are connected and are formed confined steel anchor case structure, the limit longeron is fixed in the junction of apron and preceding baffle, the apron is equipped with joint strip all around, be equipped with stiffening rib on bottom plate and the swash plate.
The utility model provides a bridge, includes the left beam body, the right beam body and foretell wire rope damping shock attenuation expansion joint, wire rope damping shock attenuation expansion joint is installed in the gap between the left beam body and the right beam body, two anchor structures respectively with left beam body and right beam body fixed connection.
The utility model adopts the steel wire rope damper as the energy dissipation component, so that the expansion joint has the energy dissipation and shock absorption functions and the structure is simple; the telescopic function is achieved by utilizing the telescopic effect of the cross brace supporting system, and the displacement requirement of the structure under the condition of temperature change is met. The bridging support system of each expansion joint unit comprises two rows of bridging structures, and each row of bridging structures does not need to be synchronous in the displacement and expansion process, so that the multidirectional displacement function of the beam end can be realized, and the movement is more flexible. The utility model discloses wire rope attenuator combines with bridging braced system, in the same direction as bridge to can both the energy dissipation shock attenuation with horizontal bridge, novel structure, and it is all very convenient to install and maintain.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic view of the wire rope damper of the present invention.
Fig. 3 is a schematic view of the anchoring structure of the present invention.
Fig. 4 is a schematic plan view of the anchoring structure of the present invention.
Fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.
FIG. 6 is a cross-sectional view taken at I-I in FIG. 5.
FIG. 7 is a sectional view taken along line II-II in FIG. 5.
Fig. 8 is a schematic view of the top scissor support system of fig. 5.
Fig. 9 is a schematic view of the connection of the wire rope damper of fig. 5.
Fig. 10 is a schematic view of a side rail and a center rail according to the present invention.
Fig. 11 is a schematic structural view of embodiment 3 of the present invention.
Fig. 12 is a schematic structural view of embodiment 4 of the present invention.
In the figure: 1-an anchoring structure; 2-a wire rope damper; 3-a top-level scissor-brace support system; 4-water stop belt; 5-a gap; 6-side stringer; 7-a center stringer; 8-a bottom beam; 9-a slide block; 10-a cross brace structure; 11-a cross brace; 12-a first brace bar; 13-a second brace bar; 14-a pin shaft; 15-bottom layer scissor-brace support system; 16-a first connection node; 17-a second connecting node; 18-a first cord gripper; 19-a second rope clamp; 20-a steel wire rope; 22-a cover plate; 23-a base plate; 24-a sloping plate; 25-a front baffle; 26-side plate; 27-a sliding member; 28-a stiffener; 29-anchor bolts; 30-an expansion slot; 31-left connector; 32-right connector; 33-a connecting strap; 34-a groove; 35-left beam body; 36-right beam body; 37-sealing rubber strip.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1-4, the utility model provides a wire rope damping shock attenuation expansion joint, two anchor structures 1 including wire rope attenuator 2 and symmetrical arrangement, wire rope attenuator 2 is fixed in between two anchor structures 1, one side top edge that two anchor structures 1 are relative is equipped with limit longeron 6, sets up waterproof construction between two limit longerons 6, wire rope attenuator 2 and limit longeron 6 all are on a parallel with anchor structure 1 lateral wall (baffle 25 before promptly) and arrange.
The utility model adopts the steel wire rope damper as the energy dissipation component, so that the expansion joint has the energy dissipation and shock absorption functions and the structure is simple; the supporting system of the single seam only has an edge beam and does not have a middle beam, so that a scissor support is not needed, the two edge longitudinal beams are directly anchored in the steel anchor box, and at the moment, the first rope clamp and the second rope clamp on the two sides of the steel wire rope damper are respectively and fixedly connected with the front baffle plates of the two anchoring structures.
In the above solution, the steel wire rope damper 2 includes a first rope clamp 18, a second rope clamp 19 and a steel wire rope 20, the first rope clamp 18, the second rope clamp 19 and the steel wire rope 20 are all linear structures, the first rope clamp 18, the second rope clamp 19 and the steel wire rope 20 are arranged in parallel to a side wall (i.e. a front baffle 25) of the anchoring structure 1, and the steel wire rope 20 is fixed between the first rope clamp 18 and the second rope clamp 19. First rope presss from both sides 18 and second rope and presss from both sides 19 the structure the same, and first rope presss from both sides including two steel sheets of linear type, two steel sheets pass through bolted connection, be equipped with a plurality of semicircle orifices that can hold wire rope and pass on two relative faces of two steel sheets respectively, the semicircle orifice lock that corresponds the position on two steel sheets forms fixed wire rope's rope clamp hole. The wire rope 20 may be of a straight-line construction, i.e. in a spring-like form, wound from a spiral of wire strands, as shown in fig. 2. Wire rope 20 also can include the wire rope circle of a plurality of separations, and a plurality of wire rope circles are the linear type and distribute, and distance between the wire rope circle and the angle arrangement of wire rope circle all can be as required and decide, and the one end of a plurality of wire rope circles all is fixed in on the first rope clip, and the other end of a plurality of wire rope circles all is fixed in on the second rope clip.
In the above scheme, the anchoring structure 1 plays a role in anchoring the steel wire rope damper and the cross brace supporting system, the anchoring structure 1 comprises a cover plate 22, a bottom plate 23, an inclined plate 24, a front baffle 25 and two side plates 26, the cover plate 22, the bottom plate 23, the inclined plate 24, the front baffle 25 and the two side plates 26 are connected to form a closed steel anchor box structure, the side longitudinal beam 6 is fixed at the joint of the cover plate 22 and the front baffle 25, sealing rubber strips 37 are arranged around the cover plate 22, and stiffening ribs 28 are arranged on the bottom plate 23 and the inclined plate 24. During practical application, a vertical sliding component 27 (the sliding component is fixed) is embedded in the side wall of the gap below the bottom plate, the sliding component 27 can be a plane steel plate or a channel steel slideway, and the sliding block is attached to the sliding component.
The steel anchor box is anchored on the steel plate on the beam body through the anchoring bolt 29, the beam body in the figure is shown as a concrete beam, the anchoring steel plate and the sliding component need to be embedded, and the anchoring structure can also be used for the steel box beam. The inclined plate and the bottom plate of the steel anchor box on one side are provided with transverse expansion grooves 30, under the action of an earthquake, transverse relative movement can occur between adjacent anchoring structures, and the expansion grooves can release the transverse displacement of the steel anchor box, so that two rope clamps of the steel wire rope damper generate axial relative movement, and the energy dissipation and shock absorption effects of the steel wire rope damper are exerted.
In the above scheme, waterproof construction is including setting up one or more waterstop 4 between two side longerons 6, waterstop 4 is including left connector 31, right connector 32 and the connecting band 33 that the integration is connected, the connecting band 33 both sides are connected with left connector 31 and right connector 32 respectively, connecting band 33 central authorities are the V type of buckling or curved recess 34. In the embodiment, only the V-shaped groove is taken as an example, and the collected rainwater is discharged from two ends of the groove respectively due to the formed groove.
Example 2
As shown in fig. 5-10, in order to adapt to different gap sizes of the expansion joint and improve the bearing capacity and the damping effect of the structure, on the basis of the embodiment 1, the steel wire rope damping and shock absorbing expansion joint of the utility model can also comprise a top layer scissor-bracing support system 3 fixed between the two anchoring structures, the top-level scissor-brace support system 3 comprises one or more middle longitudinal beams 7, a bottom beam 8, a slide block 9 and two rows of scissor-brace structures 10, the two rows of the scissor-brace structures 10 are symmetrically distributed at two ends of the middle longitudinal beam 7, at the moment, the steel wire rope damper 2 is not directly connected with the anchoring structure but arranged between the two rows of the scissor-brace structures 10, the number of the cross bracing structures is multiple, the top of each cross bracing structure 10 is connected with one end of each side longitudinal beam 6 and one end of each middle longitudinal beam 7, the bottom of each cross bracing structure 10 is connected with one end of each bottom beam 8 and the corresponding sliding block 9, and the sliding blocks 9 can vertically slide. During practical application, the sliding component is embedded in the side wall of the gap, the sliding block is attached to the sliding component, and when the sliding component vibrates, the sliding block 9 can vertically slide along the sliding component 27, so that the telescopic function of the cross brace supporting system is met.
Specifically, the cross brace structure 10 comprises a plurality of cross braces 11, the top of one side of each cross brace positioned at the edge is connected with one end of the side longitudinal beam 6, the bottom of each cross brace positioned at the edge is connected with the sliding block 9, the top of the other side of each cross brace positioned at the edge is connected with one end of the middle longitudinal beam 7, and the bottom of each cross brace positioned at the edge is connected with one end of the bottom beam 8; the top of the middle bridging is connected with one end of the middle longitudinal beam 7, and the bottom of the middle bridging is connected with one end of the bottom beam 8, namely the middle bridging and the adjacent bridging share the middle longitudinal beam and the bottom beam. The cross brace 11 comprises a first brace rod 12 and a second brace rod 13, and the middle part of the first brace rod 12 and the middle part of the second brace rod 13 are connected through a pin 14 to form an X-shaped structure.
When arranging the steel wire rope damper 2 in the top-layer cross brace supporting system 3 of the embodiment, one side (namely, the first rope clamp 18) of the steel wire rope damper 2 is fixedly connected with the bottom of the middle longitudinal beam 7 through a bolt, the other side (namely, the second rope clamp 19) of the steel wire rope damper 2 is fixedly connected with the top of the bottom beam 8 through a bolt, and the middle longitudinal beam 7 and the bottom beam 8 are vertically and correspondingly arranged.
The top-layer cross brace supporting system is matched with the steel wire rope dampers, and the bottom beam plays a role in transverse connection with the cross braces, so that the whole supporting system is better in integrity, and meanwhile, the dampers are also supported. The side longitudinal beams and the middle longitudinal beam directly bear the load of the vehicle, the side longitudinal beams are fixed on the anchor box, and the middle longitudinal beam is supported on the cross braces. The middle longitudinal beam transfers the load of the vehicle to the cross braces which are similar to web members of a truss structure, but the stress is more complex than that of the truss, and the cross braces can rotate around the pin shafts, so that the cross braces not only bear axial force, but also bear bending moment and shearing force. A plurality of cross braces can be arranged in the transverse bridge direction according to the stress requirement, namely, the connecting pin shafts of the two cross braces at the horizontal corresponding positions are taken as a whole. Under the effect of temperature load, the scissor-bracing achieves the telescopic function through the rotation of the web members, at the moment, the height of the bottom beam changes, and the sliding block slides on the sliding component to achieve the telescopic function. When the cross brace supporting system moves, relative movement is generated between nodes (also called pin shafts) of the cross braces, so that the wire rope ring deforms, and vibration energy is consumed. The steel wire rope damper is a common strip-shaped steel wire rope damper and can be made of stainless steel materials for improving durability.
It should be noted that the edges of the side members 6 and the center member 7 are not always linear as shown in fig. 6 and 7, and in order to increase the wheel base of the side members and the comfort of vehicle running, the edges of the side members and the center member are made into convex-concave shapes (as shown in fig. 10) or other shapes which are matched with each other.
Example 3
As shown in fig. 11, when the beam body or the building structure is thick, that is, the depth of the expansion joint is deep, on the basis of embodiment 2, a bottom-layer scissor-bracing support system 15 may be further provided, the bottom-layer scissor-bracing support system 15 is disposed below the top-layer scissor-bracing support system 3 along the depth direction of the gap, one or more wire rope dampers are disposed in the bottom-layer scissor-bracing support system 15, the bottom-layer scissor-bracing support system includes a slider and two rows of scissor-bracing structures (not specifically shown in the figure), the slider and the two rows of scissor-bracing structures are the same as those in the top-layer scissor-bracing support system, the scissor-bracing structures of the bottom-layer scissor-bracing support system and the scissor-bracing structures of the top-layer scissor-bracing support system are connected through a common bottom beam and a slider, and bottoms of adjacent scissor-bracing structures in each row of scissor.
Example 4
As shown in fig. 12, when the beam or the building structure is thick, that is, the depth of the expansion joint is deep, on the basis of embodiment 2, a plurality of bottom-layer scissor-bracing support systems 15 may be further provided, the plurality of bottom-layer scissor-bracing support systems 15 are arranged up and down along the depth direction of the gap, one or more steel wire rope dampers are arranged in the bottom-layer scissor support system, the bottom-layer scissor support system comprises a sliding block and two rows of scissor support structures, the structure of the sliding block and the two rows of the scissor-bracing structures is the same as that of the top-layer scissor-bracing supporting system, the bottom-layer scissor-bracing supporting system and the top-layer scissor-bracing supporting system are connected through a shared bottom beam and the sliding block, the adjacent bottom-layer scissor-bracing supporting systems (namely the upper and lower corresponding scissor-bracing systems) are connected with the sliding block through pin shafts, the bottoms of the adjacent scissor-bracing structures in each row of the scissor-bracing structures are connected through pin shafts, and one side of the bottom of the scissor-bracing located at the edge is connected with the sliding block.
The installation methods of the wire rope dampers and the pins on the scissor braces in the bottom-layer scissor brace support systems of embodiments 3 and 4 are as follows: in the region where the steel wire rope damper and the steel wire rope damper do not pass through, the upper and lower adjacent cross braces (two cross braces in the cross brace structures arranged up and down), the left and right adjacent cross braces (namely two cross braces in the same cross brace structure) and the front and rear adjacent cross braces (namely two corresponding cross braces in the two rows of cross brace structures of the same bottom layer cross brace support system) are connected through shorter pin shafts; in the area where the steel wire rope damper is fixed and passes through, the pin shafts 14 of two front and back corresponding scissors braces in the two rows of scissors brace structures are connected to form a whole body to be similar to a bottom beam structure in a top-layer scissors brace supporting system to serve as a first connecting node 16, the pin shafts 14 of the other two corresponding scissors braces are connected to form a whole body to serve as a second connecting node 17, one side (namely a first rope clamp) of the steel wire rope damper 2 is fixed on the first connecting node 16, and the other side (namely a second rope clamp) of the steel wire rope damper is fixed on the second connecting node 17. When the wire rope damper is arranged in a node-crossing mode, namely, the front and rear adjacent cross braces in the area where the wire rope damper passes are connected through the short pin shaft, and the wire rope damper is convenient to mount.
It is worth pointing out that, in theory, the steel wire rope damper can be arranged between any two nodes where the cross brace moves relatively, so that the steel wire rope ring can be deformed, and energy is consumed through dry friction between the steel wires. For example, the wire rope damper 2 may be horizontally disposed (the horizontal disposition is determined by the connecting line direction of the first rope clamp and the end of the second rope clamp), and then the first connecting node 16 and the second connecting node 17 are horizontally disposed at the same height, and the first connecting node 16 and the second connecting node 17 are adjacently disposed, as shown in fig. 11; the wire rope damper can also be arranged across the nodes, and the mode is suitable for large expansion joints and occasions requiring larger damping parameters, and the first connecting node and the second connecting node are arranged across the nodes. The wire rope damper 2 may also be arranged obliquely (the oblique arrangement is determined by the direction of the connecting line of the end of the first rope clamp and the end of the second rope clamp), the first rope clamp and the second rope clamp are fixed on two nodes which are not on a vertical line and have different heights, that is, the first connecting node 16 and the second connecting node 17 are arranged obliquely, as shown in fig. 12; the first connecting node 16 and the second connecting node 17 may also be arranged vertically. In a word, the arrangement mode of the steel wire rope damper is flexible and various, and the steel wire rope damper is selected according to conditions in the aspects of construction, structural stress, processing and manufacturing and the like.
The utility model also provides a bridge, including the left beam body 35, the right beam body 36 and above-mentioned embodiment 1-4 arbitrary wire rope damping shock attenuation expansion joint, wire rope damping shock attenuation expansion joint is installed in gap 5 between the left beam body 35 and the right beam body 36, two anchor structures 1 respectively with the left beam body 35 and the 36 fixed connection of the right beam body, each wire rope damping shock attenuation expansion joint is as an expansion joint unit this moment, according to the bridge width, can arrange a plurality of expansion joint units along the bridge transverse bridge, mutual independence between the adjacent expansion joint unit.
The utility model discloses the installation on the bridge is installed to the expansion joint does:
prefabricating the expansion joint in a factory: 1) firstly, processing a scissor brace, and mounting a middle beam, an edge beam and a bottom beam on the scissor brace; 2) installing a finished steel wire rope damper between supporting system nodes according to the requirements of a drawing; 3) installing an anchoring structure to form an independent expansion joint unit; 4) transporting the expansion joint unit to the site, and anchoring the expansion joint unit on the embedded steel plate at the beam end through bolts; 5) and installing a sealing rubber strip and covering a cover plate.
It should be noted that: if the expansion joint needs to be maintained, the expansion joint unit can be detached only by prying the cover plate and unscrewing the anchoring bolt, and corresponding components are replaced or maintained without digging concrete, so that the maintenance is very convenient.
The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.

Claims (12)

1. The utility model provides a wire rope damping shock attenuation expansion joint which characterized in that: the steel wire rope damper comprises a steel wire rope damper (2) and two symmetrically arranged anchoring structures (1), wherein the steel wire rope damper (2) is fixed between the two anchoring structures (1), the top edge of one side, opposite to the two anchoring structures (1), is provided with a side longitudinal beam (6), and a waterproof structure is arranged between the two side longitudinal beams (6).
2. The steel wire rope damping and shock absorbing expansion joint according to claim 1, wherein: still including being fixed in top layer bridging braced system (3) between two anchor structures, top layer bridging braced system (3) are including well longeron (7), floorbar (8), slider (9) and two rows of bridging structures (10), two rows of bridging structures (10) distribute in the both ends of well longeron (7), set up one or more wire rope attenuator (2) between two rows of bridging structures (10), the top and the one end of side longeron (6) and well longeron (7) of bridging structure (10) are connected, and the bottom and the floorbar (8) one end and slider (9) of bridging structure (10) are connected, slider (9) can vertical slip.
3. The steel wire rope damping and shock absorbing expansion joint according to claim 2, wherein: the scissor support structure (10) comprises a plurality of scissor supports (11), the top of one side of each scissor support (11) positioned at the edge is connected with one end of the side longitudinal beam (6), the bottom of each scissor support (11) positioned at the edge is connected with the sliding block (9), the top of the other side of each scissor support positioned at the edge is connected with one end of the middle longitudinal beam (7), and the bottom of each scissor support positioned at the edge is connected with one end of the bottom beam (8); the top of the middle scissor brace is connected with one end of the middle longitudinal beam (7), and the bottom of the middle scissor brace is connected with one end of the bottom beam (8).
4. The steel wire rope damping and shock absorbing expansion joint according to claim 3, wherein: the scissors support (11) comprises a first support rod (12) and a second support rod (13), and the middle parts of the first support rod (12) and the second support rod (13) are connected through a pin shaft (14) to form an X-shaped structure.
5. The steel wire rope damping and shock absorbing expansion joint according to claim 2, wherein: the edges of the side longitudinal beams (6) and the middle longitudinal beams (7) are all linear or the edges of the side longitudinal beams (6) and the middle longitudinal beams (7) are concave-convex shapes matched with each other.
6. The steel wire rope damping and shock absorbing expansion joint according to claim 2, wherein: one side of the steel wire rope damper (2) is fixedly connected with the bottom of the middle longitudinal beam (7), the other side of the steel wire rope damper (2) is fixedly connected with the top of the bottom beam (8), and the middle longitudinal beam (7) and the bottom beam (8) are vertically arranged correspondingly.
7. The steel wire rope damping and shock absorbing expansion joint according to claim 2, wherein: still include one or more bottom bridging braced system (15), bottom bridging braced system (15) set up in the below of top layer bridging braced system (3), and during including a plurality of bottom bridging braced systems, a plurality of bottom bridging braced system (15) are arranged from top to bottom along gap degree of depth direction, set up one or more wire rope attenuator (2) in bottom bridging braced system (15), be connected through floorbar and slider between bottom bridging braced system and the top layer bridging braced system, connect through round pin axle and slider between the adjacent bottom bridging braced system.
8. The steel wire rope damping and shock absorbing expansion joint according to claim 6, wherein: one side of the steel wire rope damper (2) is fixed on a first connecting node (16) between two corresponding scissors braces in the two rows of scissors brace structures, the other side of the steel wire rope damper is fixed on a second connecting node (17) between the other two corresponding scissors braces in the two rows of scissors brace structures, the first connecting node (16) and the second connecting node are arranged adjacently or in a node-crossing manner, and the first connecting node (16) and the second connecting node (17) are arranged horizontally or obliquely or vertically.
9. The steel wire rope damping and shock absorbing expansion joint according to claim 1, wherein: and two sides of the steel wire rope damper (2) are respectively and fixedly connected with the front baffles of the two anchoring structures (1).
10. The steel wire rope damping and shock absorbing expansion joint according to claim 1, wherein: the steel wire rope damper (2) comprises a first rope clamp (18), a second rope clamp (19) and a steel wire rope (20), wherein the first rope clamp (18), the second rope clamp (19) and the steel wire rope (20) are all linear structures, the first rope clamp (18), the second rope clamp (19) and the steel wire rope (20) are arranged in parallel to the side wall of the anchoring structure (1), and the steel wire rope (20) is fixed between the first rope clamp (18) and the second rope clamp (19).
11. The steel wire rope damping and shock absorbing expansion joint according to claim 1, wherein: anchor structure (1) is including apron (22), bottom plate (23), swash plate (24), preceding baffle (25) and curb plate (26), apron (22), bottom plate (23), swash plate (24), preceding baffle (25) and curb plate (26) are connected and are formed confined steel anchor case structure, limit longeron (6) are fixed in the junction of apron (22) and preceding baffle (25), apron (22) are equipped with joint strip (37) all around, be equipped with stiffening rib (28) on bottom plate (23) and swash plate (24).
12. A bridge, characterized in that: the steel wire rope damping expansion joint comprises a left beam body (35), a right beam body (36) and the steel wire rope damping expansion joint as claimed in any one of claims 1 to 11, wherein the steel wire rope damping expansion joint is installed in a gap between the left beam body (35) and the right beam body (36), and the two anchoring structures (1) are fixedly connected with the left beam body (35) and the right beam body (36) respectively.
CN201921867192.0U 2019-10-31 2019-10-31 Steel wire rope damping and shock-absorbing expansion joint and bridge Active CN211547311U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112681124A (en) * 2020-12-26 2021-04-20 朱锋 Comb-tooth-shaped damping displacement bridge expansion device
CN113373802A (en) * 2021-06-15 2021-09-10 武汉东九永环工程技术有限公司 Shock attenuation expansion joint based on wire rope attenuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112681124A (en) * 2020-12-26 2021-04-20 朱锋 Comb-tooth-shaped damping displacement bridge expansion device
CN112681124B (en) * 2020-12-26 2022-07-01 朱锋 Comb-tooth-shaped damping displacement bridge expansion device
CN113373802A (en) * 2021-06-15 2021-09-10 武汉东九永环工程技术有限公司 Shock attenuation expansion joint based on wire rope attenuator

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