Prefabricated bridge expansion joint structure

Abstract

The utility model discloses a prefabricated bridge expansion joint structure which comprises an expansion joint structure body formed by two groups of anchoring plates which are arranged in a butt joint mode and connected with a plurality of groups of anchoring steel bars, and a plurality of groups of connecting assemblies are installed between the two groups of anchoring plates. The connecting assembly comprises two sets of connecting bases used for being fixedly connected with the two sets of anchoring plates and a connecting plate arranged between the two sets of connecting bases. The connecting plate and the connecting base are hinged through a plurality of sets of connecting rods rotationally arranged in the connecting plate and the connecting base, two sets of connecting pieces arranged on the two sides of the connecting rods and a plurality of sets of locking pieces rotationally arranged at the two ends of the connecting rods. The novel expansion joint is simple in structure, convenient to maintain, capable of achieving a certain buffering effect when a vehicle passes through, capable of reducing noise, improving the stability of the overall structure of the expansion joint, properly prolonging the service life and further reducing the damage degree of bridge floors on the two sides.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge building technical field, concretely relates to a prefabricated bridge expansion joint structure. BACKGROUND

[0002] Bridge expansion joint is an important connecting structure in bridge building process, refers to the requirement of bridge deck deformation, usually sets up expansion joint between two beam ends, beam end and abutment or hinge position of bridge, requires expansion joint to be free expansion in two directions parallel and perpendicular to bridge axis, firm and reliable, when vehicle drives, should be smooth, no sudden jump and noise, can prevent rainwater and garbage and soil from seeping in and blocking, installation, inspection, maintenance, elimination of dirt are simple and convenient, at the place where expansion joint sets, railing and bridge deck pavement are disconnected.

[0003] At present, the whole bridge expansion joint of most butt joint type, steel supporting type, combined shear type (plate type) and other installation modes adopts integral beam structure, although it has high installation efficiency, but usually needs to remove the whole for the maintenance and maintenance of the expansion joint, and there is certain inconvenience for the maintenance of the deformation and other abnormal conditions of the expansion joint on the plate, which prolongs the maintenance time and reduces the maintenance efficiency, in addition, the whole strength of the common expansion joint structure is large, although it can bear large load of vehicles passing through the bridge, but the instantaneous stress generated on both sides of the bridge deck under pressure is large, on the one hand, it is easy to produce large noise when the vehicle passes through, on the other hand, it also increases the probability of structure deformation and damage to the corresponding bridge deck. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a prefabricated bridge expansion joint structure, the whole structure of the bridge expansion joint is set in the form of plate, which is convenient for maintenance and has certain buffering effect when vehicles pass through, reduces noise, improves the stability of the whole structure of the expansion joint, appropriately prolongs the service life, and further reduces the damage degree to both sides of the bridge deck.

[0005] The utility model solves the above problems by the following technical scheme:

[0006] A prefabricated bridge expansion joint structure, which comprises two groups of anchor plates connected by a plurality of groups of anchor steel bars to form an expansion joint structure main body, a plurality of groups of connecting assemblies are installed between the two groups of anchor plates, the connecting assembly comprises two groups of connecting seats for connecting and fixing with the two groups of anchor plates and a connecting plate provided between the two groups of connecting seats, the connecting plate and the connecting seat are hinged through a plurality of groups of connecting rods rotatably provided in the connecting plate and the connecting seat, two groups of connecting members provided on both sides of the connecting rod, and a plurality of groups of locking members rotatably provided at both ends of the connecting rod.

[0007] Preferably, the connecting plate is provided with a plug-in structure on both sides for anchoring the connection between adjacent connecting assemblies on the plate.

[0008] Preferably, the plug-in structure comprises a plurality of fixing seats detachably mounted on both sides of the connecting plate, and two groups of plug-in seats provided with a plurality of first plug-in slots on both sides of the fixing seat and detachably mounted through the second plug-in slot provided on both sides of the fixing seat.

[0009] Preferably, a plurality of groups are provided on the connecting plate between the two groups of connecting seats in the connecting assembly.

[0010] Preferably, the two groups of anchoring plates are further provided with a first clamping plate with a clamping head and a second clamping plate with a clamping slot at the corresponding positions below the connecting assembly.

[0011] Compared with the prior art, the utility model has the following advantages and effects:

[0012] The utility model discloses a prefabricated bridge expansion joint structure, compared with the traditional integral plate expansion joint structure, a plurality of connecting assemblies are arranged on the bridge expansion joint structure, the bridge expansion joint structure is provided with a plurality of connecting assemblies, and the two sides of the anchoring plate are connected with a plurality of anchoring steel bars, which has a certain structural strength, the connecting assembly is matched with the corresponding connecting plate and the adaptive structure of the two connecting seats, and the corresponding connecting mode can have a certain buffering effect when the vehicle passes, reduce the noise, and the connecting structure of the connecting rod, the connecting piece and the locking piece on the two sides can ensure the stability of the overall structure of the expansion joint, appropriately prolong the service life, effectively reduce the impact force formed on the two sides of the anchoring plate when the vehicle passes and the damage degree of the two sides of the bridge, and the structure of the connecting assembly can be conveniently prefabricated and installed, further improve the installation efficiency, and the abnormal situation of the corresponding plate can be handled through the daily maintenance and the later maintenance process of the corresponding connecting assembly, effectively shorten the maintenance time, further improve the maintenance efficiency, and slow down the further influence on the normal driving of the traffic vehicle on the bridge during the maintenance process. ACCURACY OF DRAWINGS

[0013] Figure 1 It is the overall structure schematic view of the prefabricated bridge expansion joint structure main body of the utility model embodiment.

[0014] Figure 2 It is the local enlarged view of the connecting assembly of the utility model embodiment.

[0015] Figure 3 It is the structure enlarged view of the plug-in structure on both sides of the connecting rod of the utility model embodiment.

[0016] Figure 4 It is the structure disassembly view of the plug-in structure of the utility model embodiment.

[0017] Figure No. Expansion joint structure main body 110, threaded hole 120, anchor plate 100, anchor steel bar 101, convex plate 102, first clamping plate 103, clamping head 1031, second clamping plate 104, clamping groove 1041, connecting assembly 1, connecting seat 11, through groove 111, connecting plate 12, mounting hole 10, connecting rod 13, pin rod 131, connecting piece 14, locking piece 15, plug-in structure 16, fixing seat 161, second insertion groove 1611, plug-in seat 162, insertion groove 1621. DETAILED DESCRIPTION

[0018] The preferred detailed description of the utility model will be described below in combination with the drawings and by examples. The following examples are an explanation of the utility model, and the utility model is not limited to the following examples.

[0019] Referring to Figures 1-2 , the embodiment relates to a prefabricated bridge expansion joint structure, which comprises two groups of anchor plates 100 that are arranged in butt joint and connected with a plurality of groups of anchor steel bars 101 to form an expansion joint structure main body 110, a plurality of groups of connecting assemblies 1 are mounted between the two groups of anchor plates 100, the connecting assembly 1 comprises two groups of connecting seats 11 for connecting and fixing with the two groups of anchor plates 100 and a connecting plate 12 arranged between the two groups of connecting seats 11, the connecting plate 12 and the connecting seat 11 are hinged through a plurality of groups of connecting rods 13 rotatably arranged in the connecting plate 12 and the connecting seat 11, two groups of connecting pieces 14 arranged on both sides of the connecting rod 13 and a plurality of groups of locking pieces 15 rotatably arranged at both ends of the connecting rod 13.

[0020] Specifically in the embodiment, as Figure 1 shown, the overall structure of the prefabricated bridge expansion joint structure is arranged, and before actual installation, as Figure 2 shown, through the plurality of groups of connecting rods 13 rotatably arranged in the connecting plate 12 and the connecting seat 11, the two groups of connecting pieces 14 arranged on both sides of the corresponding connecting rod 13 and the plurality of groups of locking pieces 15 rotatably arranged at both ends of the connecting rod 13, the connecting process of hinging the two groups of connecting seats 11 at both ends of the connecting plate 12 is realized, specifically the connecting rod 13 is adaptively penetrated and rotated through the mounting hole 10 arranged at the corresponding position of the connecting plate 12 and the connecting seat 11, the connecting piece 14 is adaptively sleeved on the pin rod 131 with a redundant length arranged at both ends of the adjacent connecting rod 13 between the connecting plate 12 and the connecting seat 11, and the locking piece 15 adopts a conventional bolt structure to cooperate with the threaded hole 120 arranged at the corresponding position of both ends of the connecting rod 13 to realize the locking and fixing and detachable connecting process in the rotating process, so that the connecting assembly 1 formed according to the actual installation requirements and the corresponding length of the connecting plate 12 and the two groups of connecting seats 11 is adaptively arranged in length, and the above operation process is repeated to realize the corresponding connecting process of a plurality of groups of connecting assemblies 1, and then in the on-site installation, asFigure 1 As shown, the two groups of anchor plates 100 are pre-installed on the corresponding two sides of the bridge deck by the several groups of anchor steel bars 101 connected to the two groups of anchor plates 100, and the connecting assembly 1 after installation is adapted to be installed on the two groups of anchor plates 100 by the corresponding structure of the two groups of connecting seats 11, and the connecting seat 11 is inserted into the corresponding position of the anchor plate 100 through the through slot 111 and the protruding plate 102, and the several threaded holes 120 and the multiple groups of bolt pieces are opened in the corresponding position of the through slot 111 and the protruding plate 102, so as to realize the installation process of the multiple groups of connecting assemblies 1 between the two groups of anchor plates 100. At the same time, the multiple groups of connecting assemblies 1 are left with a proper interval distance between the adjacent connecting assemblies 1 during installation to ensure the normal installation and disassembly process of the connecting assembly 1, and the interval distance is not enough to affect the normal driving process of the vehicle, so as to complete the installation process of the whole structure of the bridge expansion joint on the certain distance and corresponding span of the two sides of the bridge deck. Compared with the traditional integral plate expansion joint structure, the plate block structure is provided by cooperating with the multiple groups of connecting assemblies 1, and the two sides of the anchor plate 100 and the several groups of anchor steel bars 101 connected thereto have a certain structural strength, and the connecting assembly 1 cooperates with the adaptive structure of the corresponding connecting plate 12 and the two groups of connecting seats 11 and the corresponding connection mode, so as to have a certain buffering effect when the vehicle passes through, reduce noise, and prolong the service life while ensuring the stability of the whole structure of the expansion joint and appropriately prolonging the service life, and effectively reducing the impact force on the two sides of the anchor plate 100 and the damage degree to the two sides of the bridge deck when the vehicle passes through. Moreover, the structure of the connecting assembly 1 can be conveniently prefabricated and installed, further improving the installation efficiency, and the abnormal situation of the corresponding plate block can be conveniently maintained and repaired, effectively shortening the repair time and further improving the repair efficiency, and further reducing the influence on the normal driving of the traffic vehicle on the bridge during the repair process.

[0021] The connecting plate 12 is provided with the plug-in structure 16 on both sides for connecting the adjacent connecting assemblies 1 on the anchor plate 100, Figure 1 and Figure 3 As can be seen from the above, the adaptive plug-in structure 16 on both sides of the connecting plate 12 is added without affecting the normal disassembly of the connecting rod 13 and the connecting piece 14 and the locking piece 15 on both sides, so as to be adaptively plugged during installation, thereby further improving the connection stability of the several groups of connecting assemblies 1 between the two groups of anchor plates 100 and the uniformity of the interval distance between the adjacent connecting assemblies 1, and effectively improving the installation efficiency of the several groups of connecting assemblies 1.

[0022] AsFigure 4 As shown, the plug-in structure 16 includes a plurality of fixing seats 161 detachably mounted on both sides of the connecting plate 12, and two groups of plug-in seats 162 provided with a plurality of first insertion grooves 1621 on both sides of the fixing seat 161 and detachably mounted through the second insertion groove 1611 provided on both sides of the fixing seat 161. Specifically, during installation, the adaptive structure of the two groups of plug-in seats 162 is provided to be inserted into the second insertion groove 1611 provided at the corresponding position on both sides of the fixing seat 161, and is fixed by the bolt provided on the plug-in seat 162 and the threaded hole 120 provided in the second insertion groove 1611 on both sides of the fixing seat 161, so as to complete the installation process of the plug-in structure 16, and then the detachable connection process can be performed through the bolt provided on the fixing seat 161 and the threaded hole 120 provided on both sides of the connecting plate 12. At the same time, the adjacent connecting assembly 1 can be adaptively inserted and connected through the plurality of first insertion grooves 1621 provided on the plug-in seat 162 in the plug-in structure 16 on both sides of the connecting plate 12 during installation. The structure of the plug-in structure 16 can further improve the detachability, flexibility, convenience of the connecting assembly 1, and facilitate daily inspection and post-maintenance operations.

[0023] A plurality of connecting plates 12 are provided between the two groups of connecting seats 11 in the connecting assembly 1. Specifically, the precast bridge expansion joint structure can be adaptively connected according to the actual installation requirements and the span between the two groups of anchor plates 100 during installation. While ensuring that the connecting assembly 1 has a certain connection stability, the corresponding connection process of a group of connecting plates 12 with an adaptive length or a plurality of connecting plates 12 with corresponding lengths can be selected, so as to further improve the buffering and shock absorption effect of the connecting assembly 1, meet different installation environments and installation requirements, and improve the structural adaptability and applicability.

[0024] The two groups of anchor plates 100 further respectively have a first clamping plate 103 with a clamping head 1031 and a second clamping plate 104 with a clamping groove 1041 at the corresponding position below the connecting assembly 1, so as to further improve the adaptability and applicability of the structure. Figure 1 or Figure 2As can be seen, the first clamping plate 103 and the second clamping plate 104 arranged on the two groups of anchor plates 100 can be set according to the corresponding length of the installation requirements, the clamping head 1031 on the first clamping plate 103 can be clamped on the matching clamping groove 1041 arranged on the second clamping plate 104, so as to further improve the connection stability between the two groups of anchor plates 100, improve the overall structural strength of the expansion joint structure body 110, in addition, the first clamping plate 103 and the second clamping plate 104 arranged at the corresponding position below the connecting assembly 1 can also play a certain protection effect on the connecting assembly 1, and when the connecting assembly 1 deforms or even breaks, it can be resisted, thereby effectively reducing the adverse effects caused during the driving of the vehicle, appropriately prolonging the service life of the expansion joint structure body 110 structure and further improving the stability and safety during use.

[0025] The above description in the specification is only an example of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, as long as they do not deviate from the content of the specification or exceed the scope defined by the claims.

Claims

1. A prefabricated bridge expansion joint structure comprising two groups of abutting expansion joint structure bodies formed by anchor plates connected by a plurality of groups of anchor reinforcing bars, characterized in that: The two groups of anchor plates are provided with several groups of connecting assemblies, the connecting assembly comprises two groups of connecting seats for connecting and fixing with the two groups of anchor plates, and a connecting plate arranged between the two groups of connecting seats, the connecting plate and the connecting seat are hingedly connected through a plurality of groups of connecting rods rotatably arranged in the connecting plate and the connecting seat, two groups of connecting members arranged on both sides of the connecting rod, and a plurality of groups of locking members rotatably arranged at both ends of the connecting rod.

2. The precast bridge gap joint structure of claim 1, wherein: Both sides of the connecting plate are provided with a plug-in structure for connecting adjacent connecting assemblies on the anchor plate.

3. The pre-fabricated bridge gap joint structure of claim 2, wherein: The plug-in structure comprises a plurality of groups of fixing seats detachably mounted on both sides of the connecting plate, and two groups of plug-in seats provided with a plurality of first plug-in grooves on both sides of the fixing seat and detachably mounted through the second plug-in groove formed on both sides of the fixing seat.

4. The precast bridge gap joint structure of claim 1, wherein: The connecting plate between the two groups of connecting seats in the connecting assembly is correspondingly provided with a plurality of groups.

5. The precast bridge gap joint structure of claim 1, wherein: The two groups of anchor plates are respectively provided with a first clamping plate with a clamping head and a second clamping plate with a clamping groove at the corresponding positions below the connecting assembly.

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