CN211228089U - Seamless telescoping device of bridge - Google Patents
Seamless telescoping device of bridge Download PDFInfo
- Publication number
- CN211228089U CN211228089U CN201921997941.1U CN201921997941U CN211228089U CN 211228089 U CN211228089 U CN 211228089U CN 201921997941 U CN201921997941 U CN 201921997941U CN 211228089 U CN211228089 U CN 211228089U
- Authority
- CN
- China
- Prior art keywords
- steel
- bridge
- seamless
- bottom plate
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model belongs to the technical field of the affiliated functional unit of bridge, a seamless telescoping device of bridge is disclosed. The utility model comprises two bridge members, wherein the upper ends of the two bridge members are provided with asphalt concrete surface layers, and an elastic-plastic filling material is arranged between the two asphalt concrete surface layers; fixing pieces are embedded in the elastic-plastic filling material, and a moving piece is embedded between the two fixing pieces; a plurality of U-shaped connecting pieces are arranged between the movable piece and the fixing pieces on the two sides; the lower extreme of mounting is provided with the strengthening rib subassembly. The utility model has the characteristics of orthotropic, have less deformation rigidity and great deformability following the bridge direction to the adaptation is out of shape by the bridge superstructure that the temperature variation arouses, has great rigidity in order to bear vehicle load's gravity and impact simultaneously at the vertical, has solved traditional expansion joint and has destroyed easily, maintains the problem of maintenance difficulty and driving irregularity.
Description
Technical Field
The utility model belongs to the technical field of the affiliated functional unit of bridge, concretely relates to seamless telescoping device of bridge.
Background
The upper structure of the bridge can generate longitudinal expansion deformation along the bridge due to temperature change and concrete shrinkage and creep, the expansion deformation is restrained to cause bridge structure damage, and cracking and arching of the bridge floor and the road surface, and the traditional method is also a common method at present, and expansion devices (namely commonly-called expansion joints) with deformation joints are arranged between the beam bodies and the bridge abutment to adapt to the expansion deformation.
The traditional expansion joint has the following defects: the existence of the expansion joint enables the bridge deck to be a discontinuous structure, and the vehicle can generate impact when passing through the expansion joint, so that the driving is not smooth, and the driving comfort is influenced; repeated impact when a vehicle passes through makes the expansion joint easy to loosen, deform and damage, the damage of the expansion joint aggravates the impact of the vehicle to form vicious circle, the impact action of the vehicle can also cause the damage of the bridge, the service life of the bridge is shortened, and the driving safety is even endangered under severe conditions; moreover, the bridge expansion joint is exposed outside, and the clearance at expansion joint can be filled up to long-term accumulated dust, rubbish, leads to the expansion joint to become invalid. Therefore, the expansion joints of bridges are frequently repaired and damaged, which is one of the typical difficulties in bridge repair and maintenance, and not only needs long-term maintenance but also has high cost.
The fundamental reason for the defects of the traditional bridge expansion joints is that the bridge deck structure is discontinuous, so that the development of a seamless expansion device is realized, the bridge deck is continuous, and the expansion joint device is one of important ways for solving the defects of the traditional expansion joints, and the concept that the best expansion joint is free of expansion joints promotes the development of the bridge seamless technology. In the beginning of the last 70 th century in the United kingdom, a filling type seamless expansion device for a bridge, which is made of high-elasticity plastic materials, is developed and applied, a notch is reserved at an expansion joint of the bridge, and a hot-mix mixture elastoplast body consisting of various high-molecular polymer modified asphalt, an anti-aging agent and aggregate is filled in the reserved notch, so that the continuity of a bridge deck is realized, and the driving comfort is improved. The technology is introduced into China in the last 90 th century, and is developed and applied to a certain extent. However, the elastomer filling type expansion device also has some obvious defects, and because the elastomer is made of softer material and has smaller rigidity, the elastomer deforms greatly under the action of wheel load, the interface of the elastomer and a bridge deck pavement layer is easy to be debonded, and the bridge deck pavement layer is damaged by gnawing, the expansion device has poor durability, and the application of the expansion device cannot be popularized.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a seamless telescoping device of bridge.
The utility model discloses the technical scheme who adopts does:
a bridge seamless expansion device comprises two bridge members which are arranged at intervals, wherein the upper ends of the two bridge members are provided with asphalt concrete surface layers; the gap between the two bridge members is a beam seam, an elastic material filling space is arranged between the two asphalt concrete surface layers, the width of the elastic material filling space is greater than that of the beam seam, and an elastic-plastic filling material is arranged in the elastic material filling space; the elastic-plastic filling material is internally embedded with fixed parts positioned at two sides of the elastic-plastic filling material, and a moving part is embedded in the elastic-plastic filling material between the two fixed parts; a plurality of U-shaped connecting pieces are arranged between the movable piece and the fixing pieces on the two sides; and the lower end of the fixing piece is provided with a reinforcing rib assembly for reinforcing the connectivity between the elastic plastic filling material and the two bridge members.
Further preferably, the two bridge members are both beam bodies, or the two bridge members are respectively a beam body and a bridge abutment.
More preferably, the fixing piece comprises a first top steel plate with holes, a fixing piece steel bottom plate and a plurality of anchoring ribs, which are sequentially arranged from top to bottom, the fixing piece steel bottom plate is arranged at the upper end of the bridge member, the anchoring ribs are embedded in the bridge member, and the anchoring ribs are connected with the reinforcing rib assemblies; the first perforated steel top plate and the fixing piece steel bottom plate are connected through a first perforated steel web or a first short steel bar, and the first perforated steel web or the first short steel bar is connected with one end of the U-shaped connecting piece.
Still further preferably, the strengthening rib subassembly is including the bridge component embedded steel bar and the horizontal bridge to reinforcing bar that connect each other, and bridge component embedded steel bar and horizontal bridge are all pre-buried in the bridge component to the reinforcing bar, and bridge component embedded steel bar and horizontal bridge all are connected with the anchor muscle that corresponds.
More preferably, the movable part comprises a second perforated steel top plate and a movable part steel bottom plate arranged below the second perforated steel top plate, the second perforated steel top plate and the movable part steel bottom plate are connected through a second perforated steel web plate or a second short steel bar, and the second perforated steel web plate or the second short steel bar is connected with the other end of the U-shaped connecting piece; and two ends of the movable part steel base plate are respectively arranged on the two fixing part steel base plates.
It is still further preferred that the beam gap below the moving member steel bottom plate is filled with foam.
Still more preferably, the first top steel plate with holes and the bottom steel plate of the fixing piece are connected through a first steel web with holes; and the upper end surface layer of the fixing steel bottom plate is flush with the upper end surface of the bridge member.
It is further preferred that the first top steel plate with holes and the bottom steel plate with fixing pieces are connected through first short steel bars.
Still more preferably, the first steel top plate with holes is a steel bar, and a plurality of holes are uniformly formed in the first steel top plate with holes.
The utility model has the advantages that:
the utility model relates to an orthotropic steel skeleton seamless telescoping device for highway bridge, which is provided with a fixed part, a movable part, a U-shaped connecting piece of the fixed part and the movable part through connection, has the characteristic of orthotropic, has smaller deformation rigidity and larger deformability along the bridge direction to adapt to the deformation of the upper structure of the bridge caused by temperature change, and has larger rigidity vertically to bear the gravity and impact of vehicle load; the reinforcing rib assembly strengthens the connectivity between the asphalt concrete surface course and the bridge member, integrates the effective layer structure, and further strengthens the integral deformation resistance, bearing capacity and impact resistance. The orthotropic steel skeleton seamless expansion device replaces the traditional expansion joint, realizes seamless continuity of the bridge pavement, and solves the problems that the traditional expansion joint is easy to damage, difficult to maintain and unsmooth to drive.
Drawings
FIG. 1 is a cross-sectional structural view of the seamless expansion device for bridge of the present invention;
FIG. 2 is a top view of the seamless expansion device for bridge of the present invention;
FIG. 3 is a perspective view of the first steel web with openings in the fastener of the present invention;
FIG. 4 is a side view of the fixing member of the present invention when the first steel web with holes is connected to the U-shaped connecting member;
fig. 5 is a perspective view of the movable member of the present invention when a second steel web with holes is used;
fig. 6 is a perspective view of the utility model when the first short reinforcing bar is used in the fixing member;
fig. 7 is a side view of the fixing member of the present invention when the first short steel bar is connected to the U-shaped connecting member;
fig. 8 is a perspective view of the movable member of the present invention when the second short reinforcing bars are used.
In the figure: 1-a bridge member; 2-asphalt concrete surface course; 3-an elastoplastic filler material; 4-a fixing piece; 41-a first steel top plate with holes; 42-a fixture steel base plate; 43-anchoring ribs; 44-a first apertured steel web; 45-first short rebar; 5-a movable part; 51-a second perforated steel top plate; 52-moving part steel bottom plate; 53-a second open-cell steel web; 54-second short rebar; 6-U-shaped connecting pieces; 7-a stiffener assembly; 71-embedding reinforcing steel bars in the bridge member; 72-transverse bridge direction reinforcing steel bars; 8-foam.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the accompanying drawings is only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any inventive work.
The technical solution provided by the present invention will be described in detail by way of embodiments 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.
In some instances, some embodiments are not described or not in detail, as they are conventional or customary in the art.
Furthermore, the technical features described herein, or the steps of all methods or processes disclosed, may be combined in any suitable manner in one or more embodiments, in addition to the mutually exclusive features and/or steps. It will be readily appreciated by those of skill in the art that the order of the steps or operations of the methods associated with the embodiments provided herein may be varied. Any order in the drawings and examples is for illustrative purposes only and does not imply that a certain order is required unless explicitly stated to be required.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The terms "connected" and "coupled" when used in this application, encompass both direct and indirect connections (and couplings) where appropriate and where not necessary contradictory.
The first embodiment is as follows:
as shown in fig. 1-8, the present embodiment provides a bridge seamless expansion device, which includes two bridge members 1 arranged at intervals, and asphalt concrete surface layers 2 are respectively arranged at the upper ends of the two bridge members 1; the gap between the two bridge members 1 is a beam seam, an elastic material filling space is arranged between the two asphalt concrete surface layers 2, the width of the elastic material filling space is greater than that of the beam seam, and an elastic-plastic filling material 3 is arranged in the elastic material filling space; the elastic-plastic filling material 3 is internally embedded with fixing pieces 4 positioned at two sides of the elastic-plastic filling material, and a movable piece 5 is embedded in the elastic-plastic filling material 3 between the two fixing pieces 4; a plurality of U-shaped connecting pieces 6 are arranged between the movable piece 5 and the fixing pieces 4 on the two sides; the lower end of the fixing member 4 is provided with a reinforcing rib assembly 7 for reinforcing the connection between the elastic-plastic filling material 3 and the two bridge members 1. The movable part 5 and the fixed part 4 are welded through the U-shaped connecting piece 6 to form an orthotropic steel skeleton, which is suitable for larger expansion amount, the orthotropic steel skeleton and the elastoplastic filling material 3 can be made of the existing materials, for example, the adopted elastoplastic filling material 3 can be the existing high-elasticity asphalt concrete such as epoxy asphalt mixture or rubber asphalt mixture, and the concrete is not limited specifically. It should be further noted that the two bridge members 1 are both beam bodies, or the two bridge members 1 are respectively a beam body and a bridge abutment.
The utility model relates to an orthotropic steel skeleton seamless telescoping device for highway bridge, through connecting the U type connecting piece 6 that sets up mounting 4, moving part 5 and mounting 4 and moving part 5, have orthotropic characteristics, have less deformation rigidity and great deformability in the direction of following the bridge to the adaptation is deformed by the bridge superstructure that the temperature variation arouses, has great rigidity in the vertical direction simultaneously in order to bear the gravity and the impact of vehicle load; the reinforcing rib component 7 strengthens the connectivity between the asphalt concrete surface layer 2 and the bridge member 1, integrates the layer structure effectively, and further strengthens the integral deformation resistance, bearing capacity and impact resistance. The orthotropic steel skeleton seamless expansion device replaces the traditional expansion joint, realizes seamless continuity of the bridge pavement, and solves the problems that the traditional expansion joint is easy to damage, difficult to maintain and unsmooth to drive. And simultaneously, the utility model discloses still have following characteristics:
(1) the seamless expansion device is arranged along the bridge direction in a proper joint length mode, conventional expansion joints are replaced, full-bridge seamless can be achieved, driving stability and comfort are improved, bridge diseases caused by impact of vehicles at the conventional expansion joints can be avoided, and maintenance workload is greatly reduced.
(2) The utility model discloses the orthotropic steel skeleton that forms combines to form integrated configuration with elastoplasticity filler material 3, has improved the whole vertical rigidity of expansion joint, makes its vertical rigidity with the bridge floor match, compares with conventional filled expansion joint, because of there being diseases such as the reserve groove gnawing limit, fracture that great deformation difference leads to when can avoiding the wheel to grind the expansion joint.
(3) Due to the supporting and restraining effect of the orthotropic steel skeleton, the sinking and the protruding of the elastic plastic filling material 3 can be avoided.
(4) The bridge has good deformability along the bridge direction so as to adapt to slow stretching deformation of the beam body caused by shrinkage, creep and temperature change, and has certain rigidity along the bridge direction, so that the horizontal displacement of the upper structure of the bridge under the braking force can be effectively resisted, the deviation of the bridge pier can be reduced, and the stress on the bridge pier is favorable.
(5) Because the displacement of the beam body under the action of the braking force is limited, the expansion and contraction quantity increased by considering the installation error as the conventional expansion joint is not needed, and the required expansion and contraction quantity is smaller for the same joint length.
(6) Because the orthotropic steel skeleton of the telescopic device effectively improves the vertical rigidity, the width and the height of the elastic-plastic filling material 3 can be larger, and compared with the conventional filling type telescopic joint, the telescopic device with larger telescopic amount can be manufactured. When the required amount of expansion and contraction is large, this can be achieved by increasing the number of movable parts.
(7) The seamless telescopic device has good deformability and reasonable rigidity along the bridge direction, and can play a good role in buffering and limiting the displacement of a beam body when being subjected to the action of horizontal earthquake; meanwhile, the combined structure formed by the orthotropic steel skeleton and the elastic-plastic filling material 3 has better viscoelastic property and can play a role in seismic energy dissipation. Therefore, the anti-seismic performance of the bridge can be obviously improved by adopting the seamless telescopic device.
(8) The construction speed is fast, the installation and the pouring of one expansion device can be finished within several hours generally, and the traffic can be opened 24 hours after the completion.
(9) Convenient maintenance and small workload. The seamless telescopic device has good durability, and can reduce the workload of maintenance; even if the damage curing is occurred, the curing is very convenient, if cracks occur, the sealing can be carried out by adopting a hot-melt elastic-plastic material, and the surface layer can be reworked by hot melting due to abrasion and pit grooves. In addition, the telescopic device has better vertical shearing deformation capability, is also very convenient for jacking and replacing the support, and cannot be damaged under the condition of reasonably controlling jacking amount.
(10) The cost of the seamless expansion device is about 50% higher than that of the common expansion joint, but the seamless expansion device has good technical and economic benefits because the durability can be improved, the maintenance workload is reduced, the bridge performance and the driving conditions are improved, and the performance and the whole life cycle cost are comprehensively considered.
Example two:
the present embodiment is a further improvement on the basis of the first embodiment, and specific differences between the present embodiment and the first embodiment are as follows:
in this embodiment, as shown in fig. 3, 4, 6 and 7, the fixing element 4 includes a first steel top plate 41 with holes, a fixing element steel bottom plate 42 and a plurality of anchoring ribs 43, which are sequentially arranged from top to bottom, the fixing element steel bottom plate 42 is arranged at the upper end of the bridge member 1, the anchoring ribs 43 are embedded in the bridge member 1, and the anchoring ribs 43 are connected with the reinforcing rib assemblies 7; the first top steel plate 41 with the hole and the bottom steel plate 42 with the fixing piece are connected through a first open-hole steel web 44 or a first short steel bar 45, and the first open-hole steel web or the first short steel bar is connected with one end of the U-shaped connecting piece 6. It should be further noted that the first top steel plate with holes 41 is a steel bar, and a plurality of holes are uniformly formed in the first top steel plate with holes 41. As shown in fig. 3 or 6, the fixing members 4 are combined into an i-shaped structure to provide vertical rigidity support; the first holed steel top plate 41 is preferably a narrow steel bar, perforated at regular intervals so that the filled elastoplastic materials are interconnected to form a whole. The fixed parts 4 are two in total and are arranged at two sides of an expansion joint (namely a gap between two beam bodies), the moving part 5 is arranged between the two fixed parts 4, and one or more than one fixed parts can be arranged according to the required expansion amount. The adjacent movable pieces 5 and the fixed pieces 4 are connected and erected through the horizontally arranged U-shaped connecting pieces 4, and the U-shaped connecting pieces 4 are preferably made of steel bars, so that the expansion joint has proper rigidity and deformability along the bridge direction. The first perforated steel web 44 can strengthen the constraint between the fixing part 4 and the elastic-plastic filling material 3, and avoid the debonding between the elastic-plastic filling material 3 and the side surface of the asphalt concrete surface layer 2. Adopt first short reinforcing bar 45 the same with the effect that adopts first trompil steel web 44, and adopt first short reinforcing bar 45's structure simpler, the preparation is more convenient, and the cost is lower, sees from the in-service use condition, all reaches anticipated effect the same with adopting first trompil steel web 44.
Example three:
the present embodiment is a further improvement on the basis of the second embodiment, and specific differences between the present embodiment and the second embodiment are:
it should be further explained in this embodiment that the reinforcing rib assembly 7 includes bridge member embedded bars 71 and transverse bridge direction bars 72 connected to each other, the bridge member embedded bars 71 and the transverse bridge direction bars 72 are both embedded in the bridge member 1, and the bridge member embedded bars 71 and the transverse bridge direction bars 72 are both connected to the corresponding anchoring bars 43. Bridge member embedded steel bar 71 and horizontal bridge are all connected bridge member 1 to reinforcing bar 72, are connected with anchor muscle 43 simultaneously, and the effectual formation of layer structure is whole with the connectivity between 3 of reinforcing elastoplasticity filler material that can be fine and bridge member 1, avoids the damage of elastoplasticity filler material 3 in long-term use.
Example four:
the present embodiment is a further improvement made on the basis of the second embodiment or the third embodiment, and the specific differences between the present embodiment and the second embodiment or the third embodiment are:
in this embodiment, as shown in fig. 5 and fig. 8, the movable member 5 includes a second top plate 51 made of perforated steel and a movable member steel bottom plate 52 disposed below the second top plate 51 made of perforated steel, the second top plate 51 made of perforated steel and the movable member steel bottom plate 52 made of movable member steel are connected by a second steel web 53 or a second short steel bar 54, and the second steel web 53 or the second short steel bar 54 is connected to the other end of the U-shaped connecting member 6; the two ends of the movable steel base plate 52 are respectively disposed on the two fixed steel base plates 42. Generally, all parts of the movable part 5 are connected in a welding mode, and the stability is good. Adopt second trompil steel web 53, can strengthen the restraint to lieing in moving part 5 and elastoplasticity filler material 3, avoid the debonding between elastoplasticity filler material 3 and asphalt concrete surface course 2 side. Adopt second short reinforcing bar 54 with adopt second trompil steel web 53's effect the same, and adopt the structure of second short reinforcing bar 54 simpler, the preparation is more convenient, and the cost is lower, from the actual use condition, all reach anticipated effect the same with adopting second trompil steel web 53.
Example five:
the present embodiment is a further improvement on the basis of the fourth embodiment, and specific differences between the present embodiment and the fourth embodiment are:
in this embodiment, it should be further explained that the beam gap below the movable member steel bottom plate 52 is filled with foam 8. The foam 8 can play a certain buffering role, so that the protection effect is better.
Example six:
the present embodiment is a further improvement made on the basis of any one of the second to fifth embodiments, and the specific differences between the present embodiment and any one of the second to fifth embodiments are as follows:
in this embodiment, it should be further explained that the first top steel plate 41 with holes and the fixing steel bottom plate 42 with holes are connected through a first steel web with holes; the upper end surface layer of the fixing steel bottom plate 42 is flush with the upper end surface of the bridge member 1. The moderate distance in the embodiment can ensure better stabilizing effect and play a good role in protection.
Example seven:
the present embodiment is a further improvement made on the basis of any one of the second to sixth embodiments, and the specific differences between the present embodiment and any one of the second to sixth embodiments are:
in this embodiment, it should be further explained that the first top steel plate 41 with holes and the bottom steel plate 42 with fixing pieces are connected by first short steel bars. Moderate distance can guarantee that firm effect is better in this embodiment, plays fine guard action, and the distance between both ends mounting 4 and notch side is less simultaneously, and mounting 4 has better constraint effect to this small part elastoplasticity obturator between it and notch side to can effectively prevent to debond between elastoplasticity obturator and notch department pitch layer side, take place the bridge floor and gnaw the limit and destroy.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (9)
1. The utility model provides a seamless telescoping device of bridge which characterized in that: the composite structure comprises two bridge members (1) which are arranged at intervals, wherein the upper ends of the two bridge members (1) are respectively provided with an asphalt concrete surface layer (2); the gap between the two bridge members (1) is a beam seam, an elastic material filling space is arranged between the two asphalt concrete surface layers (2), the width of the elastic material filling space is greater than that of the beam seam, and an elastic-plastic filling material (3) is arranged in the elastic material filling space; the elastic-plastic filling material (3) is internally embedded with fixed pieces (4) positioned at two sides of the elastic-plastic filling material, and a movable piece (5) is embedded in the elastic-plastic filling material (3) between the two fixed pieces (4); a plurality of U-shaped connecting pieces (6) are arranged between the movable piece (5) and the fixing pieces (4) at the two sides; and the lower end of the fixing piece (4) is provided with a reinforcing rib assembly (7) for reinforcing the connectivity between the elastic-plastic filling material (3) and the two bridge members (1).
2. The seamless bridge expansion device of claim 1, wherein: the two bridge members (1) are both beam bodies, or the two bridge members (1) are respectively beam bodies and bridge abutments.
3. The seamless bridge expansion device of claim 2, wherein: the fixing piece (4) comprises a first perforated steel top plate (41), a fixing piece steel bottom plate (42) and a plurality of anchoring ribs (43), wherein the first perforated steel top plate, the fixing piece steel bottom plate (42) and the plurality of anchoring ribs (43) are sequentially arranged from top to bottom, the fixing piece steel bottom plate (42) is arranged at the upper end of the bridge member (1), the anchoring ribs (43) are embedded in the bridge member (1), and the anchoring ribs (43) are connected with the reinforcing rib assembly (7); the first top plate (41) and the fixing steel bottom plate (42) are connected through a first open-hole steel web plate (44) or a first short steel bar (45), and the first open-hole steel web plate or the first short steel bar is connected with one end of the U-shaped connecting piece (6).
4. The seamless bridge expansion device of claim 3, wherein: the reinforcing rib assembly (7) comprises bridge member embedded steel bars (71) and transverse bridge direction steel bars (72) which are connected with each other, the bridge member embedded steel bars (71) and the transverse bridge direction steel bars (72) are all embedded in the bridge member (1), and the bridge member embedded steel bars (71) and the transverse bridge direction steel bars (72) are all connected with corresponding anchoring bars (43).
5. The seamless bridge expansion device of claim 3 or 4, wherein: the movable piece (5) comprises a second perforated steel top plate (51) and a movable piece steel bottom plate (52) arranged below the second perforated steel top plate (51), the second perforated steel top plate (51) and the movable piece steel bottom plate (52) are connected through a second perforated steel web plate (53) or a second short steel bar (54), and the second perforated steel web plate (53) or the second short steel bar (54) is connected with the other end of the U-shaped connecting piece (6); and two ends of the movable part steel bottom plate (52) are respectively arranged on the two fixed part steel bottom plates (42).
6. The seamless bridge expansion device of claim 5, wherein: and foam (8) is filled in a beam gap below the movable piece steel bottom plate (52).
7. The seamless bridge expansion device of claim 3, wherein: the first top steel plate (41) with the hole and the fixing steel bottom plate (42) are connected through a first steel web plate (44) with a hole; the upper end surface layer of the fixing steel bottom plate (42) is flush with the upper end surface of the bridge member (1).
8. The seamless bridge expansion device of claim 3 or 6, wherein: the first top steel plate (41) with the hole and the fixing steel bottom plate (42) are connected through a first short steel bar (45).
9. The seamless bridge expansion device of claim 3, wherein: first band-pass steel roof (41) are the billet, and even being provided with a plurality of trompils on first band-pass steel roof (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921997941.1U CN211228089U (en) | 2019-11-18 | 2019-11-18 | Seamless telescoping device of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921997941.1U CN211228089U (en) | 2019-11-18 | 2019-11-18 | Seamless telescoping device of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211228089U true CN211228089U (en) | 2020-08-11 |
Family
ID=71938758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921997941.1U Active CN211228089U (en) | 2019-11-18 | 2019-11-18 | Seamless telescoping device of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211228089U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114657871A (en) * | 2022-03-04 | 2022-06-24 | 浙江交工集团股份有限公司 | Assembled seamless expansion joint skeleton |
-
2019
- 2019-11-18 CN CN201921997941.1U patent/CN211228089U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114657871A (en) * | 2022-03-04 | 2022-06-24 | 浙江交工集团股份有限公司 | Assembled seamless expansion joint skeleton |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110685217A (en) | Seamless telescoping device of bridge | |
| CN107815963B (en) | Bridge expansion joint | |
| CN104674650B (en) | Based on bridge floor seamless process retractor device and the construction method thereof of the type transverse joint plate of putting more energy into | |
| CN105178177B (en) | Highway bridge self-adaptation multidirection deformation displacement composite structure retractor device | |
| CN104594191A (en) | Corrugated steel plate built-in seamless expansion device between girder and bridge abutment and construction method of seamless expansion device | |
| CN110792035B (en) | Reinforced seamless elastomer expansion device and construction method thereof | |
| WO2023024687A1 (en) | Low-noise bridge polymer expansion device | |
| CN211228089U (en) | Seamless telescoping device of bridge | |
| CN215714630U (en) | Prefabricated UHPC board-wave type steel superposed bridge floor connecting structure | |
| CN113463525B (en) | Wide connecting device is pieced together with steel case roof beam to concrete case roof beam | |
| CN110616631A (en) | Longitudinal connection structure suitable for main beam at bridge expansion joint and construction method | |
| CN108824176B (en) | Bridge abutment structure for bridge without expansion joints and construction method thereof | |
| KR200403801Y1 (en) | Complex expansion joint system | |
| CN110184907B (en) | Steel-concrete combined bridge expansion device | |
| CN104762873A (en) | Abutment hidden expansion device and construction method thereof | |
| CN204475159U (en) | A kind of Abutment implicit expression expansion joint structure | |
| CN208748508U (en) | A kind of bridge abutment structure for jointless bridge | |
| CN208151831U (en) | A kind of single hole precast hollow slab jointless bridge | |
| CN204023401U (en) | A kind of bidirectional modulation formula bridge expansion joint installation | |
| CN103015313A (en) | Bridge deck continuous apparatus applied to simple supported girder bridge and bridge deck continuous method | |
| CN211200056U (en) | Longitudinal connection structure suitable for girder at bridge expansion joint | |
| KR100622008B1 (en) | Composition structure of integral abutment bridge | |
| CN111663395A (en) | Cross-joint vehicle-through device in bridge expansion joint construction period | |
| JP3789412B2 (en) | Buried joints for road bridge buried joints and buried bridge joints for road bridges | |
| CN114606822B (en) | Buffer assembly for self-recovery after road earthquake, self-adaptive system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |