CN113373802B - Shock attenuation expansion joint based on wire rope attenuator - Google Patents
Shock attenuation expansion joint based on wire rope attenuator Download PDFInfo
- Publication number
- CN113373802B CN113373802B CN202110658738.7A CN202110658738A CN113373802B CN 113373802 B CN113373802 B CN 113373802B CN 202110658738 A CN202110658738 A CN 202110658738A CN 113373802 B CN113373802 B CN 113373802B
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- wire rope
- fixed
- rope
- steel plate
- longeron
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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
-
- 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
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The utility model provides a shock attenuation expansion joint based on wire rope attenuator, includes limit longeron (2), well longeron (3) and displacement case (4), its characterized in that: the novel steel wire rope damper is characterized in that a supporting steel plate (5) is fixedly arranged on the side face of a beam end (1) below the side longitudinal beam (2), a fixed rope clamp (8) is installed on the side face of the supporting steel plate (5), a connecting steel plate (6) is installed at the bottom of the middle longitudinal beam (3), a middle rope clamp (9) is installed on the bottom face of the connecting steel plate (6) through a connecting piece, a steel wire rope damper is installed between the middle rope clamp (9) and the fixed rope clamp (8), and a steel wire rope damper (11) is also installed between two adjacent middle rope clamps (9).
Description
Technical Field
The invention relates to a shock absorption expansion joint, in particular to a shock absorption expansion joint based on a steel wire rope damper, and belongs to the technical field of road and bridge.
Background
The bridge telescoping device is the important adapting unit between the bridge beam-ends, and its performance is directly influencing the use of bridge, and the bridge telescoping device is except that needs satisfy flexible function, still need bear vehicle load roll repeatedly and strike, simultaneously, still need be with the vibration of vehicle and driving noise control in the allowed band, furthest's promotion driving comfort level.
The existing bridge expansion device mainly comprises a modulus expansion device and a comb plate expansion device, wherein each bearing capacity sliding component (a cross beam, a middle beam and a support frame) of the modulus expansion device is supported on an elastic support, and each group of bearing component units adopts an elastic support system of the cross 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 edge 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 existing modular expansion device can only expand along the longitudinal direction of a bridge or a road to adapt to the change of expansion with heat and contraction with cold of a beam body, does not have a multidirectional displacement function, does not have a damping shock absorption function, and has very limited energy dissipation and shock absorption effects. In an earthquake-prone area, an existing modular expansion device is the most easily damaged component in a bridge, and is always permanently damaged after a first wave of an earthquake arrives, so that damage to a main structure of the bridge in the earthquake process is easily accelerated, and safety of the bridge is not facilitated. In addition, after the existing modular expansion device is subjected to the impact load of a vehicle, the longitudinal beams are easy to shift, so that the seam width between the longitudinal beams is uneven, and the driving comfort performance is seriously influenced. The technical problems of multidirectional displacement, energy dissipation and shock absorption and uneven seam width of a modulus type expansion device cannot be solved all the time.
Disclosure of Invention
The invention aims to provide a modular expansion device which has a reasonable structure, has a multidirectional displacement function, can achieve good damping, energy dissipation and shock absorption effects, can adapt to earthquakes and impact load changes generated by vehicle running, can reduce impact load generated by vehicle running, and can not cause the situations of uneven displacement and different space widths of middle longitudinal beams.
In order to achieve the purpose of the invention, the technical solution of the invention is as follows: the utility model provides a shock attenuation expansion joint based on wire rope attenuator, includes limit longeron, well longeron and displacement case, and the limit longeron is fixed to be set up on the beam-ends, and the beam-ends is inside to be fixed to be provided with the displacement case, installs between two displacement cases that the beam-ends face, has shelved many well longerons on the load-bearing beam, its characterized in that: the fixed supporting steel plate that is provided with on the roof beam end side of limit longeron below, the side-mounting of supporting steel plate has the fixed rope clip, the steel connection plate is installed to the bottom of well longeron, the middle rope clip is installed through the connecting piece to the bottom surface of steel connection plate, install the wire rope attenuator between middle rope clip and the fixed rope clip, also install the wire rope attenuator between two adjacent middle rope clips, the wire rope attenuator is formed by whole continuous wire rope according to the coiling of a fixed pitch, or by single wire rope bending, the ring becket bridle is made to end, form according to the certain interval range by a plurality of becket bridle, one side that wire rope is close to the supporting steel plate is fixed mutually with fixed rope clip or middle becket bridle, middle becket bridle is rectangular shape and is located well longeron under, the axis of middle becket bridle parallels with the axis of well longeron, a plurality of mounting holes have been seted up on the middle becket bridle.
Furthermore, the connecting piece includes connecting screw and coupling nut, and connecting screw vertical fixation passes through coupling nut after penetrating the mounting hole at the bottom surface of connecting steel sheet, connecting screw's lower extreme and fixes.
Furthermore, the fixed rope clamp is fixed on the supporting steel plate through a side connecting bolt.
Furthermore, the side face of the upper part of each middle longitudinal beam is provided with a water stop mounting groove, and the water stop mounting grooves on two adjacent middle longitudinal beams are provided with elastic water stops.
The invention has the beneficial effects that:
1. according to the invention, the steel wire rope damper is suspended and installed below the middle longitudinal beam, so that the movement of the middle longitudinal beam is constrained by the steel wire rope damper, the stress among the middle longitudinal beams is uniform, and the deflection is uniform.
2. The invention adopts the fixed rope clamps and the middle rope clamps, the two fixed rope clamps and the middle rope clamps are used for connecting and fixing the steel wire rope dampers together side by side, and the fixed rope clamps are fixed with the beam ends, thereby achieving a very good fixing effect on the basis of ensuring good damping performance.
3. The steel wire rope damper has the advantages of reasonable structure, convenience in installation and maintenance, quick automatic reset during earthquake occurrence, excellent damping energy dissipation and shock absorption effects, capability of ensuring that the distances between two adjacent middle longitudinal beams are equal in daily use, no uneven displacement and different distance widths of the middle longitudinal beams, certain energy dissipation and shock absorption effects, reduction of driving noise and improvement of driving comfort.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic side view of the present invention in the direction B-B.
FIG. 3 isbase:Sub>A top view in the direction A-A of the present invention.
Figure 4 is a schematic view of the construction of the fixation cleat and the intermediate cleat of the present invention.
Figure 5 is a schematic view of the construction of the intermediate cleat and connector of the present invention.
In the figure: the structure comprises a beam end 1, a side longitudinal beam 2, a middle longitudinal beam 3, a displacement box 4, a supporting steel plate 5, a connecting steel plate 6, a connecting bolt 7, a fixed rope clamp 8, a middle rope clamp 9, a mounting hole 10, a steel wire rope damper 11, a connecting screw rod 12, a connecting nut 13 and a water stop mounting groove 14.
Detailed Description
The invention is described in further detail below with reference to the following description of the drawings and the detailed description.
Referring to fig. 1 to 5, the shock absorption expansion joint based on the steel wire rope damper comprises an edge longitudinal beam 2, a middle longitudinal beam 3 and a displacement box 4, wherein the edge longitudinal beam 2 is fixedly arranged on a beam end 1, the displacement box 4 is fixedly arranged in the beam end 1, a bearing cross beam is arranged between the two displacement boxes 4 which are opposite to the beam end surface, and a plurality of middle longitudinal beams 3 are placed on the bearing cross beam, and the shock absorption expansion joint is characterized in that: the fixed supporting steel plate 5 that is provided with on 1 side of roof beam end below 2 longerons of limit, the fixed rope clip 8 is installed to the side-mounting of supporting steel plate 5, connecting steel plate 6 is installed to the bottom of well longeron 3, connecting steel plate 6's underrun installs middle rope clip 9 through the connecting piece, install the wire rope attenuator between middle rope clip 9 and the fixed rope clip 8, also install wire rope attenuator 11 between two adjacent middle rope clips 9, wire rope attenuator 11 is formed by whole continuous wire rope according to certain pitch coiling, or by single bending of wire rope, end to end makes the ring becket bridle, form according to certain interval range by a plurality of ring becket bridle, one side that wire rope is close to supporting steel plate 5 is fixed mutually with fixed rope clip 8 or middle rope clip 9, middle rope clip 9 is rectangular shape and is located well longeron 3 under, the axis of middle rope clip 9 parallels with the axis of well longeron 3, a plurality of mounting holes 10 have been seted up on the middle rope clip 9.
The connecting piece includes connecting screw 12 and coupling nut 13, and connecting screw 12 vertical fixation is in the bottom surface of connecting steel plate 6, and the lower extreme of connecting screw 12 penetrates behind the mounting hole 10 and fixes through coupling nut 13.
The fixed rope clamp 8 is fixed on the supporting steel plate 5 through a side connecting bolt.
The side of the upper part of each middle longitudinal beam 3 is provided with a water stop mounting groove 15, and the water stop mounting grooves 15 on two adjacent middle longitudinal beams 3 are provided with elastic water stops.
As shown in fig. 1 and fig. 2, the side longitudinal beams 2, the middle longitudinal beams 3 and the displacement boxes 4 adopted by the invention have the same structure as that of the prior art, the side longitudinal beams 2 are fixedly arranged on the side surfaces of the beam ends 1, the displacement boxes 4 are fixedly arranged inside the beam ends 1, a bearing cross beam is arranged between the two displacement boxes 4 which are opposite to the beam end surfaces, a plurality of middle longitudinal beams 3 are placed on the bearing cross beam, and the middle longitudinal beams 3 can slide on the bearing cross beam within a certain range. Different from the prior art, the invention is provided with the steel wire rope damper 11 on the basis of the existing modulus type expansion device, and achieves very good technical effect by the combined use of the steel wire rope damper 11, the side longitudinal beam 2, the middle longitudinal beam 3 and other components.
The same bridge expansion joint has two beam ends 1, an expansion joint notch is arranged between the two beam ends 1, the side surface of the beam end 1 is fixedly provided with a supporting steel plate 5, the supporting steel plate 5 is positioned below the side longitudinal beam 2, and the supporting steel plate 5 can be fixed with the beam end 1 in an anchoring mode or fixed on the side surface of the beam end 1 in an embedding and fixing mode. The supporting steel plate 5 is used for providing a mounting seat for the fixing rope clamp 8 and also can be used for serving as a mounting reference, so that the supporting steel plate 5 can also be replaced by other forms of structures such as an anchoring seat and the like.
One side of the supporting steel plate 5 close to the opening of the expansion joint is provided with a fixed rope clamp 8, and the fixed rope clamp 8 is fixed on the side surface of the supporting steel plate 5 in a bolt fixing or anchoring mode, see fig. 4. The bottom of the middle longitudinal beam 3 is provided with a connecting steel plate 6, the bottom surface of the connecting steel plate 6 is provided with a connecting screw rod, the connecting steel plate 6 fixes a middle rope clamp 9 through a connecting screw rod 12 and a connecting nut 13, and the middle rope clamp 9 is suspended below the middle longitudinal beam 3. Middle rope clamp 9 is rectangular shape and is located longeron 3 under, and the axis of middle rope clamp 9 is parallel with longeron 3's axis, has seted up a plurality of mounting holes 10 on the middle rope clamp 9. The connecting piece can adopt multiple structural style, and the structural style commonly used includes connecting screw 12 and coupling nut 13, and connecting screw 12 vertical fixation is in the bottom surface of binding post 6, and the lower extreme of connecting screw 12 penetrates behind the mounting hole 10 to be fixed through coupling nut 13, and the installation and the dismantlement of being convenient for have greatly made things convenient for the maintenance and the change in later stage.
The fixed rope clamp 8 and the middle rope clamp 9 are both used for fixing steel wire ropes on two sides of the steel wire rope damper 11, the fixed rope clamp 8 is used for fixing the steel wire rope damper 11 close to one side of the supporting steel plate 5, and the middle rope clamp 9 is used for fixing the steel wire rope damper 11 located in the middle. According to the invention, the two fixed rope clamps 8 and the plurality of middle rope clamps 9 are used for connecting and fixing the plurality of steel wire rope dampers 11 together side by side, and the movement of the middle longitudinal beams 3 is restricted by the steel wire rope dampers 11 by means of the rigidity and toughness of the steel wire rope dampers 11, so that the equal distance between two adjacent middle longitudinal beams 3 is ensured.
The steel wire rope damper 11 is formed by winding a whole continuous steel wire rope according to a certain pitch, or is formed by bending a single steel wire rope and connecting the single steel wire rope end to form a circular rope ring, and then arranging a plurality of circular rope rings according to a certain interval, wherein the diameters of the steel wire ropes can adopt different specifications, particularly 10-40 cm, and the steel wire rope damper has very excellent damping performance. When the expansion joint generates expansion deformation or even earthquakes, the middle longitudinal beams 3 move on the supporting cross beam, and the steel wire rope dampers 11 between the middle longitudinal beams 3 have certain rigidity which is approximately equal, so that the stress and the deflection between the middle longitudinal beams 3 are uniform. In daily use, when the middle longitudinal beam 3 is repeatedly rolled and impacted by vehicles, the steel wire rope damper 11 can play a damping vibration attenuation function, can ensure that the distance between two adjacent middle longitudinal beams 3 is equal, can not generate the conditions of uneven displacement and different distance widths of the middle longitudinal beams 3, reduce the driving noise and improve the driving comfort.
The upper side face of each middle longitudinal beam 3 is provided with a water stop mounting groove 15, and an elastic water stop is mounted on the water stop mounting grooves 15 on the two adjacent middle longitudinal beams 3. The elastic water stop is pre-pressed and embedded in the water stop mounting groove 15 through a special fixture, is tightly combined with the middle longitudinal beam 3, can reliably isolate the rainwater on the bridge floor, and avoids the erosion of the lower structure of the bridge caused by the rainwater.
The installation method of the invention is as follows: at prefabricated wire rope attenuator subassembly in mill, including wire rope attenuator 11, fixed rope clamp 8, middle rope clamp 9, fix the installation of fixed rope clamp 8 on supporting steel plate 5, the connecting steel plate subassembly of longeron bottom in the installation, including connecting steel plate 6, connecting screw 12, coupling nut 13, the connecting steel plate subassembly plays the effect of fixed middle rope clamp.
For the newly installed steel wire rope damping expansion joint, the middle rope clamp 9 of the steel wire rope damper 11 can be fixed below the middle longitudinal beam 3 through the connecting component, then the middle longitudinal beam 3 is hoisted in place, and then the fixed rope clamps 8 at the two ends are installed.
While the invention has been described in detail with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit of the invention.
Claims (4)
1. The utility model provides a shock attenuation expansion joint based on wire rope attenuator, includes limit longeron (2), well longeron (3) and displacement case (4), and limit longeron (2) are fixed to be set up on beam-ends (1), and beam-ends (1) inside is fixed to be provided with displacement case (4), installs load-bearing beam between two displacement cases (4) that the beam-ends face, has shelved many well longerons (3), its characterized in that on the load-bearing beam: the fixed supporting steel plate (5) that is provided with on roof beam end (1) side of limit longeron (2) below, the side-mounting of supporting steel plate (5) has fixed rope clip (8), connecting steel plate (6) are installed to the bottom of well longeron (3), rope clip (9) in the middle of connecting steel plate (6) is installed through the connecting piece in the bottom surface, install the wire rope attenuator between middle rope clip (9) and fixed rope clip (8), also install wire rope attenuator (11) between two adjacent middle rope clips (9), wire rope attenuator (11) are formed according to certain pitch coiling by whole root continuous wire rope, or by single wire rope bending, the end to end makes the ring becket bridle, form according to the determining interval range by a plurality of ring becket bridle again, wire rope is close to one side and fixed rope clip (8) or middle becket bridle (9) of supporting steel plate (5) and is fixed mutually, middle becket bridle (9) are rectangular shape and are located well longeron (3) under, the axis and the axis that the well longeron (3) paralleled of middle becket bridle (9), a plurality of mounting hole (10) have been seted up.
2. The shock absorption expansion joint based on the steel wire rope damper as claimed in claim 1, wherein: the connecting piece comprises a connecting screw rod (12) and a connecting nut (13), the connecting screw rod (12) is vertically fixed on the bottom surface of the connecting steel plate (6), and the lower end of the connecting screw rod (12) penetrates through the mounting hole (10) and then is fixed through the connecting nut (13).
3. The shock absorption expansion joint based on the steel wire rope damper as claimed in claim 1, wherein: the fixed rope clamp (8) is fixed on the supporting steel plate (5) through a side connecting bolt.
4. The shock absorption expansion joint based on the steel wire rope damper as claimed in claim 1, wherein: and the side surface of the upper part of each middle longitudinal beam (3) is provided with a water stop mounting groove (15), and the water stop mounting grooves (15) on two adjacent middle longitudinal beams (3) are provided with elastic water stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110658738.7A CN113373802B (en) | 2021-06-15 | 2021-06-15 | Shock attenuation expansion joint based on wire rope attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110658738.7A CN113373802B (en) | 2021-06-15 | 2021-06-15 | Shock attenuation expansion joint based on wire rope attenuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113373802A CN113373802A (en) | 2021-09-10 |
| CN113373802B true CN113373802B (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110658738.7A Active CN113373802B (en) | 2021-06-15 | 2021-06-15 | Shock attenuation expansion joint based on wire rope attenuator |
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| CN (1) | CN113373802B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2354986Y (en) * | 1998-11-25 | 1999-12-22 | 程立平 | Modulus bridge expansion device |
| CN103669203B (en) * | 2013-12-31 | 2016-02-24 | 衡水宝力工程橡胶有限公司 | A kind of modulus type comb plate stretching device |
| CN106284063A (en) * | 2016-10-18 | 2017-01-04 | 单国珠 | Curvilinear mold numerical expression damping vibration attenuation multi-directional deflection retractor device and method |
| CN109778687B (en) * | 2017-11-14 | 2020-12-22 | 长沙理工大学 | Assembly-combined replaceable modulus type telescopic device and preparation process thereof |
| CN211547311U (en) * | 2019-10-31 | 2020-09-22 | 武汉东九永环工程技术有限公司 | Steel wire rope damping and shock-absorbing expansion joint and bridge |
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2021
- 2021-06-15 CN CN202110658738.7A patent/CN113373802B/en active Active
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