Assembly type bridge expansion joint device and construction method

Abstract

The application discloses an assembled bridge expansion joint device and a construction method, the assembled bridge expansion joint device comprises a deformation plate, a plurality of insertion rods are arranged through the deformation plate, and the device further comprises filling plates, at least two filling plates are arranged, the two filling plates are arranged on the two sides of the deformation plate, the side surfaces close to the two filling plates are provided with insertion grooves, and the end portions of the insertion rods are inserted into the insertion grooves; a plurality of supporting mechanisms are arranged below the joint surface formed by the deformation plate and the filling plates, the supporting mechanisms are uniformly distributed along the length direction of the filling plates, and the end portions of the supporting mechanisms are inserted into the adjacent prefabricated beams; the expansion assembly is arranged, the filling plate and the deformation plate can be installed in the expansion joint under the action of the supporting mechanisms, the filling of the expansion joint is realized, and convenience is provided for vehicle driving; meanwhile, the workers need not dig installation grooves on the adjacent bridges before the expansion joint device is installed, the expansion joint device installation procedure is reduced, and the expansion joint installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bridge expansion joint device, in particular to a kind of assembled bridge expansion joint device and construction method. BACKGROUND

[0002] In order to improve the construction efficiency of bridge, generally using assembly construction method to realize the construction of bridge, i.e. multiple assembled bridges are built on the pier to be built. In order to make the assembled bridge adapt to complex environment, expansion joint is generally left between adjacent assembled bridges. The existence of expansion joint can make the bridge structure expand and contract with the change of temperature, and make the bridge adapt to the creep caused by long-term load.

[0003] In order to avoid the influence of expansion joint on the driving of vehicle, expansion device is generally arranged at expansion joint, so that adjacent bridges form a smooth driving surface. At present, the most common expansion device is comb plate type expansion joint device, and its structure can refer to a kind of comb type bridge expansion joint device disclosed in a Chinese patent with publication number CN100491641C. As known from the disclosure of the above patent, the comb type bridge expansion joint device comprises fixed comb plate and movable comb plate arranged on the beam body on both sides of bridge expansion joint respectively, wherein the movable comb plate is placed on the bridge expansion joint, the fixed comb plate and the movable comb plate are each provided with comb teeth at the respective opposite ends and are arranged in cross and interval, and the comb teeth on the movable comb plate are located on the bridge expansion joint. Compared with the prior art, the comb type bridge expansion joint device provided by the patent makes the longitudinal expansion and contraction movement of the bridge complete on the bridge expansion joint, breaks through the limitation that the relative expansion and contraction movement of the comb teeth of the movable comb plate and the fixed comb plate must be completed on the surface of the beam body, greatly shortens the length of the movable comb plate body while ensuring the longitudinal expansion and contraction amount of the bridge, and reduces the manufacturing cost.

[0004] When the comb type bridge expansion joint device is installed at the expansion joint of adjacent bridges, the worker needs to lay out according to the designed width, pay attention to cutting along the center line of beam joint to form installation groove, and clean the asphalt concrete layer and sundries in the slot area. That is to say, when the comb type bridge expansion joint device is used to fill the expansion joint, the worker needs to spend a long time to complete the processing of installation groove, and this way reduces the installation efficiency of the comb type bridge expansion joint device, and further affects the construction progress of the whole bridge. SUMMARY

[0005] The present application aims to provide an assembled bridge expansion joint device and construction method, which aims to improve the comb type bridge expansion joint device used to fill the gap of bridge, and the problem of complicated installation and low efficiency.

[0006] The present application is implemented as follows:

[0007] According to a first aspect of the present application, the present application provides an assembled bridge expansion joint device, comprising a deformation plate, a plurality of insertion rods are arranged through the deformation plate, and further comprising filling plates, at least two filling plates are arranged, the two filling plates are arranged on the two sides of the deformation plate, and the close sides of the two filling plates are provided with insertion slots, and the ends of the insertion rods are inserted into the insertion slots; a plurality of support mechanisms are arranged below the joint surface formed by the deformation plate and the filling plates, the plurality of support mechanisms are evenly distributed along the length direction of the filling plate, and the ends are inserted into the adjacent precast beams.

[0008] Preferably, the deformation plate is a first deformation plate, the first deformation plate is a rubber plate, the filling plate is a first filling plate, the length of the first filling plate is equal to the length of the first deformation plate, the sides of the two first filling plates away from each other are in contact with the two adjacent precast beams respectively, and the sides of the two first filling plates close to each other are provided with second insertion slots, the ends of the insertion rods are inserted into the second insertion slots of the two first filling plates, and the ends of the insertion rods are not in contact with the end walls of the second insertion slots.

[0009] Preferably, the support mechanism is a first support mechanism, the first support mechanism comprises a first rod body and two sets of first connecting mechanisms, the two sets of first connecting mechanisms are sleeved on the first rod body, and the top is connected with the first filling plate.

[0010] Preferably, the first connecting mechanism comprises a sleeve, a connecting rod and a first fastening bolt, a first connecting plate is fixedly arranged on the sleeve, a threaded hole and a second counterbore are arranged on the first connecting plate, the connecting rod is inserted through the second counterbore, and the bottom of the first fastening bolt is screwed into the threaded hole.

[0011] Preferably, a plurality of connecting holes are arranged on the first rod body, the first rod body is arranged through the sleeve, and the connecting rod is inserted into the connecting hole; a plurality of recessed grooves are arranged on the lower side of the first filling plate, and a plurality of first counterbores are arranged on the upper side, the sleeve is opposite to the recessed groove, and the top of the first fastening bolt is located in the first counterbore.

[0012] Preferably, the first rod body comprises an intermediate rod and two end rods on the same straight line, a connecting groove is arranged on the end face of each of the two end rods close to each other, an end column is fixedly arranged at the end of the intermediate rod, and the end column is inserted into the connecting groove.

[0013] Preferably, the support mechanism is a first support mechanism, the first support mechanism comprises a second rod body and two sets of second connecting mechanisms, the second connecting mechanism comprises a fixed arc plate and a clamping arc plate, the clamping arc plate is connected and arranged below the fixed arc plate through a second fastening bolt, the second rod body is arranged through the space formed by the fixed arc plate and the clamping arc plate, a second connecting plate is fixedly arranged on the fixed arc plate, a threaded hole is arranged on the second connecting plate, a first fastening bolt is threadedly inserted into the threaded hole, and the top of the first fastening bolt is located in the first counterbore.

[0014] Preferably, the first slot is arranged on the side of the two adjacent prefabricated beams close to each other, the number of the first slot is equal to that of the supporting mechanism, and the end of the first rod or the second rod is inserted into the first slot without contacting the end wall of the first slot.

[0015] Preferably, the deformed plate is a second deformed plate, the second deformed plate is a rubber plate, the filler plate is a second filler plate and a third filler plate, the length of the second filler plate and the third filler plate is less than that of the second deformed plate, at least one second filler plate and one third filler plate are arranged on the same side of the second deformed plate, and the second filler plate and the third filler plate are arranged along the length direction of the second deformed plate; the supporting mechanism is a second supporting mechanism and a third supporting mechanism, the second supporting mechanism is arranged below the second filler plate, and the third supporting mechanism is arranged below the third filler plate.

[0016] According to the second aspect of the present application, the present application provides a prefabricated bridge expansion joint device construction method, which is used for the prefabricated bridge expansion joint device, and includes the following steps:

[0017] Step one: when the prefabricated beam is erected on the pier column, the rod and the cross plate are respectively inserted into the first slot and the polygonal slot, that is, the pre-installation of the rod and the cross plate is realized;

[0018] Step two: according to the installation progress, the corresponding number of buckle plates are installed on the cross plate, that is, two baffle plates are arranged on the two sides, respectively, to realize the stable and movable connection of the buckle plate relative to the cross plate;

[0019] Step three: after the installation of the buckle plate, the two second filler plates are arranged on the two sides of the second deformed plate under the cooperation of the second slot and the insertion rod; the second filler plate and the second deformed plate connected by splicing are arranged on the side of the plurality of buckle plates, and the second filler plate and the second deformed plate are pushed to move towards the buckle plate, so that the second filler plate and the second deformed plate move to the corresponding position; in the process of moving the second filler plate and the second deformed plate, the buckle plate moves to the buckle slot correspondingly;

[0020] Step four: after the installation of the second filler plate, the third filler plate is connected and installed on the sleeve pipe through the first fastening bolt, thereby realizing the complete filling of the expansion joint and plugging the channel through which the second filler plate is separated.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] The expansion assembly arranged in the present application can install the filler plate and the deformed plate in the expansion joint under the action of the supporting mechanism, thereby realizing the filling of the expansion joint and providing convenience for vehicle driving; at the same time, the need for workers to dig installation slots on adjacent bridges before installing the expansion joint device is avoided, the expansion joint device installation procedure is reduced, and the expansion joint installation efficiency is improved.

[0023] The present application is provided with a plug rod on the deformation plate, and a slot on the filling plate, and the end of the plug rod is inserted into the slot, so that the deformation plate and the filling plate are stably connected; and the deformation characteristics of the deformation plate provide support for the movement of the filling plate when the expansion joint changes; meanwhile, the end of the plug rod does not contact the end wall of the slot, avoiding affecting the movement of the filling plate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the first schematic diagram of the present application installation and use;

[0025] Figure 2 is the first schematic diagram of the present application precast beam structure;

[0026] Figure 3 is the structural schematic diagram of the first expansion component of the present application;

[0027] Figure 4 is the structural schematic diagram of the first filling plate of the present application;

[0028] Figure 5 is the first schematic diagram of the first support mechanism structure of the present application;

[0029] Figure 6 is the structural schematic diagram of the first rod body of the present application;

[0030] Figure 7 is the structural schematic diagram of the first connecting mechanism of the present application;

[0031] Figure 8 is the second schematic diagram of the first support mechanism structure of the present application;

[0032] Figure 9 is the structural schematic diagram of the second connecting mechanism of the present application;

[0033] Figure 10 is the structural schematic diagram of the second rod body of the present application;

[0034] Figure 11 is the second schematic diagram of the present application installation and use;

[0035] Figure 12 is the second schematic diagram of the present application precast beam structure;

[0036] Figure 13 is the structural schematic diagram of the second expansion component of the present application;

[0037] Figure 14 is the structural schematic diagram of the second filling plate of the present application;

[0038] Figure 15 is the structural schematic diagram of the second support mechanism of the present application;

[0039] Figure 16 is a structural schematic diagram of the third filling plate of the present application;

[0040] Figure 17 is a structural schematic diagram of the second deformation plate of the present application.

[0041] In the figure: 1, prefabricated beam; 11, first slot; 12, polygonal slot; 2, first telescopic assembly; 21, first deformation plate; 22, first supporting mechanism; 23, first filling plate; 231, second slot; 232, recessed slot; 233, first counterbore; 24, first rod body; 242, end rod; 243, middle rod; 245, end column; 244, connecting slot; 25, first connecting mechanism; 251, sleeve; 252, first connecting plate; 255, first fastening bolt; 26, second connecting mechanism; 261, clamping arc plate; 262, fixed arc plate; 263, second connecting plate; 264, second fastening bolt; 27, second rod body; 271, first splicing rod; 272, second splicing rod; 273, threaded column; 274, threaded slot; 3, second telescopic assembly; 31, second filling plate; 311, buckle slot; 312, third slot; 32, second supporting mechanism; 321, horizontal plate; 322, strip hole; 323, baffle; 324, buckle plate; 33, third filling plate; 331, third supporting mechanism; 34, second deformation plate; 341, insertion rod. DETAILED DESCRIPTION

[0042] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] The following will be further described in combination with the drawings and specific embodiments:

[0044] In order to avoid the need for workers to dig installation slots on adjacent bridges before installing the expansion joint device, reduce the expansion joint device installation procedure, and improve the expansion joint installation efficiency, the present embodiment provides a new expansion joint device, i.e. the expansion joint device can be directly installed between adjacent prefabricated beams 1 without the need for workers to perform preliminary operations.

[0045] In order to realize the direct installation of the expansion joint device, a recessed slot needs to be provided on the end face of the prefabricated beam 1 during processing, and the recessed slot serves to connect the expansion joint device and stably install the expansion joint device relative to the prefabricated beam.

[0046] Specifically, the expansion joint device comprises a deformation plate, a filling plate, a supporting mechanism and the like. The deformation plate is arranged as a rubber plate, and the deformation characteristics of the deformation plate are utilized to always cooperate with the filling plate to realize the coverage of the expansion joint in the case of relative movement of the end portions of the adjacent precast beams 1, so as to avoid the cracks on the driving pavement caused by the expansion and contraction of the expansion joint, thereby affecting the driving of the vehicle. The filling plate is arranged in multiple pieces, and is evenly arranged on both sides of the deformation plate, and simultaneously contacts the end faces of the respective adjacent precast beams 1. The supporting mechanism is arranged in multiple groups, and the multiple groups of supporting mechanisms are evenly distributed along the length direction of the filling plate, and the end portions are inserted into the grooves of the adjacent precast beams 1, and the top portions are stably connected with the filling plate, so that the filling plate is stably arranged in the adjacent precast beams 1 under the action of the supporting mechanism, and the movement of the filling plate relative to the deformation plate can provide support for realizing the filling of the expansion joint.

[0047] In order to connect the deformation plate and the filling plate, a plurality of insertion rods 341 are arranged through the deformation plate. The adjacent side surfaces of the filling plates located on both sides of the deformation plate are provided with insertion grooves, the end portions of the insertion rods 341 are inserted into the insertion grooves, and the end portions do not contact the end walls of the insertion grooves, so that the stable connection of the deformation plate and the filling plate is realized under the cooperation of the insertion rods 341 and the insertion grooves, and support is provided for the movement of the filling plate relative to the deformation plate. Embodiment 1

[0048] As shown in Figures 1-7 , Figure 17 in order to be able to fill the expansion joint through the expansion joint device, and facilitate the installation of the expansion joint device in the expansion joint. The deformation plate is arranged as a first deformation plate 21, the filling plate is arranged as a first filling plate 23, the length of the first filling plate 23 is equal to the length of the first deformation plate 21, and can be the same as the width of the precast beam 1, so that the filling of the expansion joint can be realized under the action of one first deformation plate 21 and two first filling plates 23. The supporting mechanism is arranged as a first supporting mechanism 22, so that the first supporting mechanism 22, the first deformation plate 21 and the first filling plate 23 form a first expansion joint assembly 2.

[0049] In order to stably connect the first deformation plate 21 and the first filling plate 23, the side surfaces of the two first filling plates 23 close to each other are both provided with second insertion grooves 231, and the end portions of the insertion rods 341 are inserted into the second insertion grooves 231 of the two first filling plates 23.

[0050] In order to stably install the first filling plate 23 in the expansion joint by the first supporting mechanism 22, the first supporting mechanism 22 comprises a first rod body 24 and two sets of first connecting mechanisms 25, the two sets of first connecting mechanisms 25 are sleeved on the first rod body 24, and the top is connected with the first filling plate 23. Meanwhile, the first insertion slot 11 is arranged on the side of the adjacent two precast beams 1 close to each other, the number of the first insertion slot 11 is equal to that of the supporting mechanism, and the end of the first rod body 24 is inserted into the first insertion slot 11, and the end does not contact with the end wall of the first insertion slot 11, but the end of the first rod body 24 will not be separated from the first insertion slot 11, so that the first connecting mechanism 25 and the first filling plate 23 can be stably placed under the action of the first rod body 24, and the relative movement of the end of the adjacent precast beams 1 is facilitated to provide convenience for the expansion of the expansion joint. In the above-mentioned first rod body 24 and the first insertion slot 11, the first rod body 24 needs to be installed on the precast beam 1 when the precast beam 1 is installed.

[0051] In order to facilitate the installation of the first rod body 24 on the precast beam 1, the first rod body 24 comprises an intermediate rod 243 and two end rods 242 on the same straight line, the connecting slot 244 is arranged on the end face of the two end rods 242 close to each other, and the end column 245 is fixedly arranged at the end of the intermediate rod 243 and inserted into the connecting slot 244. Because the first rod body 24 is arranged in a splicing state, the two end rods 242 can be inserted into the first insertion slot 11 of the adjacent precast beams 1 respectively when the expansion joint device is installed, and then the intermediate rod 243 can be installed between the two end rods 242. In actual construction, the end column 245 can be inserted into the connecting slot 244 by bolts or by welding.

[0052] In order to realize the connection of the first rod body 24 and the first filling plate 23, the first connecting mechanism 25 comprises a sleeve 251 and a first fastening bolt 255. The sleeve 251 is sleeved on the first rod body 24 and opposite to the recessed groove 232 on the lower side of the first filling plate 23. The first connecting plate 252 is fixedly arranged on the sleeve 251, the threaded hole is arranged on the first connecting plate 252, the bottom of the first fastening bolt 255 is inserted into the threaded hole, a plurality of first counterbores 233 are arranged on the upper side of the first filling plate 23, and the top of the first fastening bolt 255 is located in the first counterbores 233. Therefore, under the action of the first fastening bolt 255, the first filling plate 23 is connected with the sleeve 251, the sleeve 251 is sleeved on the first rod body 24, so that the first filling plate 23 is stably connected with the first rod body 24, and the relative movement of the first filling plate 23 to the first rod body 24 is facilitated, and the expansion of the expansion joint can be realized.

[0053] In order to stably install the first filling plate 23 in the expansion joint by the first supporting mechanism 22, the first supporting mechanism 22 comprises a first rod body 24 and two sets of first connecting mechanisms 25, the two sets of first connecting mechanisms 25 are sleeved on the first rod body 24, and the top is connected with the first filling plate 23. Meanwhile, the first insertion slot 11 is arranged on the side of the adjacent two precast beams 1 close to each other, the number of the first insertion slot 11 is equal to that of the supporting mechanism, and the end of the first rod body 24 is inserted into the first insertion slot 11, and the end does not contact with the end wall of the first insertion slot 11, but the end of the first rod body 24 will not be separated from the first insertion slot 11, so that the first connecting mechanism 25 and the first filling plate 23 can be stably placed under the action of the first rod body 24, and the relative movement of the end of the adjacent precast beams 1 is facilitated to provide convenience for the expansion of the expansion joint. In the above-mentioned first rod body 24 and the first insertion slot 11, the first rod body 24 needs to be installed on the precast beam 1 when the precast beam 1 is installed.

[0054] Step one: when the precast beam 1 is erected on the pier column, the first rod 24 is inserted into the first slot 11, that is, the pre-installation of the first rod 24 is realized.

[0055] Step two: when the first rod 24 is pre-installed, the sleeve 251 is sleeved on the first rod 24, and the installation of the sleeve 251 is realized.

[0056] Step three: when the first deformation plate 21 and the first filling plate 23 are installed, first, under the cooperation of the second slot 231 and the insertion rod 341, two first filling plates 23 are arranged on both sides of the first deformation plate 21 and laid on the plurality of sleeves 251.

[0057] Step four: the first fastening bolt 255 is arranged through the first filling plate 23, and the end is screwed into the sleeve 251. Embodiment 2

[0058] As shown in Figures 8-10 , Figure 17 In order to be able to fill the expansion joint through the expansion joint device, and facilitate the installation of the expansion joint device in the expansion joint. The deformation plate is set as the first deformation plate 21, the filling plate is set as the first filling plate 23, the length of the first filling plate 23 is equal to the length of the first deformation plate 21, and can be the same as the width of the precast beam 1, so that under the action of one first deformation plate 21 and two first filling plates 23, the filling of the expansion joint can be realized. The support mechanism is set as the first support mechanism 22, therefore, the first support mechanism 22, the first deformation plate 21 and the first filling plate 23 constitute the first expansion assembly 2.

[0059] In order to stably connect the first deformation plate 21 and the first filling plate 23, the second slot 231 is arranged on the side of the two first filling plates 23 close to each other, and the end of the insertion rod 341 is inserted into the second slot 231 of the two first filling plates 23.

[0060] In order to stably install the first filling plate 23 in the expansion joint by the first supporting mechanism 22, the first supporting mechanism 22 comprises a second rod body 27 and two sets of second connecting mechanisms 26, the second connecting mechanism 26 comprises a fixed arc plate 262 and a clamping arc plate 261, the clamping arc plate 261 is arranged below the fixed arc plate 262 by the second fastening bolt 264, and the second rod body 27 is arranged through the space formed by the fixed arc plate 262 and the clamping arc plate 261, which facilitates the pre-assembly of the second rod body 27 and the setting of the second connecting mechanism 26 on the second rod body 27. Meanwhile, the first insertion slot 11 is arranged on the side of the adjacent two precast beams 1 close to each other, the number of the first insertion slot 11 is equal to that of the supporting mechanism, and the end of the first rod body 24 is inserted into the first insertion slot 11, and the end does not contact the end wall of the first insertion slot 11, but the end of the first rod body 24 will not be separated from the first insertion slot 11, so that the first connecting mechanism 25 and the first filling plate 23 can be stably placed under the action of the first rod body 24, and the relative movement of the end of the adjacent precast beams 1 is facilitated to provide expansion and contraction for the expansion joint,

[0061] The second connecting plate 263 is fixedly arranged on the fixed arc plate 262, the second connecting plate 263 is provided with a threaded hole, and the first fastening bolt 255 is threadedly inserted into the threaded hole. A plurality of first counterbores 233 are arranged on the upper side of the first filling plate 23, and the top of the first fastening bolt 255 is located in the first counterbores 233. Therefore, under the action of the first fastening bolt 255, the first filling plate 23 and the sleeve 251 are connected, the sleeve 251 is arranged on the first rod body 24, and then the first filling plate 23 and the first rod body 24 are stably connected, and the relative movement of the first filling plate 23 to the first rod body 24 is facilitated, and then the expansion and contraction of the expansion joint can be realized.

[0062] In order to facilitate the installation of the second rod body 27 on the precast beam 1, the second rod body 27 comprises a second split rod 272 and two first split rods 271, the two first split rods 271 are arranged in parallel at the two ends of the second split rod 272, and the end faces close to each other are provided with threaded grooves 274, and the threaded column 273 is fixedly arranged on the end face of the second split rod 272 and is threadedly inserted into the threaded groove 274. Therefore, when installing the second rod body 27, the first split rod 271 can be installed in the precast beam 1 first, and then the two first split rods 271 are connected by the second split rod 272.

[0063] The first supporting mechanism 22 is used to stably place the first deformation plate 21 and the first filling plate 23 in the expansion joint, and the following steps need to be operated.

[0064] Step one: when the precast beam 1 is erected on the pier column, the second rod body 27 is inserted into the first insertion slot 11, that is, the pre-installation of the second rod body 27 is realized.

[0065] Step two; when installing the first deformation plate 21 and the first filling plate 23, first make the fixed arc plate 262 and the clamping arc plate 261 spliced on the second rod body 27 under the action of the second fastening bolt 264.

[0066] Step three: under the cooperation of the second slot 231 and the insertion rod 341, two first filling plates 23 are arranged on both sides of the first deformation plate 21 and laid on the plurality of fixed arc plates 262.

[0067] Step four; the first fastening bolt 255 penetrates the first filling plate 23 and is threadedly inserted into the sleeve 251 at the end. Embodiment 3

[0068] As shown in Figures 11-17 in order to be able to fill the expansion joint through the expansion joint device, and facilitate the installation of the expansion joint device in the expansion joint. The deformation plate is provided as a second deformation plate 34, the second deformation plate 34 is provided as a rubber plate, the filling plate is provided as a second filling plate 31 and a third filling plate 33, the length of the second filling plate 31 and the third filling plate 33 is less than the length of the second deformation plate 34, and at least one second filling plate 31 and third filling plate 33 is arranged on the same side of the second deformation plate 34, and the second filling plate 31 and the third filling plate 33 are arranged along the length direction of the second deformation plate 34. In addition, the insertion rod 341 is arranged through the second deformation plate 34, and the third slot 312 and the second slot 231 are arranged on the side of the second filling plate 31 and the third filling plate 33 which are close to each other on both sides of the second deformation plate 34, the end of the insertion rod 341 is inserted into the third slot 312 and the second slot 231, and the end of the insertion rod 341 does not contact the end wall of the third slot 312 and the second slot 231, so that the second deformation plate 34 is stably connected with the second filling plate 31 and the third filling plate 33, and the second filling plate 31 and the third filling plate 33 are facilitated to move relative to the second deformation plate 34 to realize the contraction of the expansion joint.

[0069] The support mechanism is provided as a second support mechanism 32 and a third support mechanism 331, the second support mechanism 32 is arranged below the second filling plate 31, the third support mechanism 331 is arranged below the third filling plate 33, and the end of the second support mechanism 32 and the third support mechanism 331 is inserted into the adjacent precast beam 1, thereby supporting the second filling plate 31 and the third filling plate 33 to be stably arranged in the adjacent precast beam 1. The second deformation plate 34, the second filling plate 31, the third filling plate 33, the second support mechanism 32 and the third support mechanism 331 form a second expansion assembly 3.

[0070] In practice, the third filling plate 33 and the third supporting mechanism 332 in this embodiment are the same as the first filling plate 23 and the first supporting mechanism 22 in other embodiments, and the difference is that the length of the third filling plate 33 is different from that of the first filling plate 23. Therefore, the third filling plate 33 and the third supporting mechanism 332 are not introduced here.

[0071] In order to stably install the second filling plate 31 in the expansion joint, the second supporting mechanism 32 includes a horizontal plate 321, a buckle plate 324, and the like. The horizontal plate 321 is provided with a strip hole 322 arranged along the length direction of the horizontal plate 321. Two buckle plates 324 are arranged vertically above the horizontal plate 321. A baffle plate 323 is fixedly arranged below the buckle plate 324. A connecting bolt is arranged through the baffle plate 323. The connecting bolt is arranged through the strip hole 322. Alternatively, a connecting shaft is arranged through the baffle plate 323, and a latch or the like is arranged through both ends of the connecting shaft. In summary, the buckle plate 324 is stably and movably installed on the horizontal plate 321. In addition, a buckle groove 311 is arranged on the lower side of the second filling plate 31. The buckle groove 311 is arranged along the length direction of the second filling plate 31, and one end is arranged as an opening. When the second filling plate 31 is installed on the second supporting mechanism 32, the buckle plate 324 is located in the buckle groove 311, and the second filling plate 31 is moved on multiple groups of the second supporting mechanism 32, so that the second filling plate 31 is stably arranged in the expansion joint.

[0072] In order to stably arrange the second supporting mechanism 32 relative to the precast beam 1, a polygonal groove 12 is arranged on the end surface of the precast beam 1. The polygonal groove 12 is adapted to the horizontal plate 321. Therefore, the end of the horizontal plate 321 is inserted into the polygonal groove 12, and does not contact the end wall of the polygonal groove 12.

[0073] In order to stably arrange the first deformation plate 21 and the first filling plate 23 in the expansion joint using the above-mentioned second supporting mechanism 32 and the third supporting mechanism 331, the following steps need to be performed:

[0074] Step one: when the precast beam 1 is erected on the pier column, the rod body and the horizontal plate 321 are respectively inserted into the first insertion groove 11 and the polygonal groove 12, that is, the pre-installation of the rod body and the horizontal plate 321 is realized.

[0075] Step two: according to the installation progress, a corresponding number of buckle plates 324 are installed on the horizontal plate 321, that is, two baffle plates 323 are respectively arranged on both sides of 321, so as to stably and movably connect the buckle plate 324 relative to the horizontal plate 321.

[0076] Step three: after the installation of the buckle plate 324, the two second filling plates 31 are arranged on both sides of the second deformation plate 34 under the cooperation of the second slot 231 and the insertion rod 341. The second filling plate 31 and the second deformation plate 34 connected by splicing are arranged on the side edges of the plurality of buckle plates 324, and the second filling plate 31 and the second deformation plate 34 are pushed to move towards the buckle plate 324, so that the second filling plate 31 and the second deformation plate 34 move to the corresponding positions. In the process of moving the second filling plate 31 and the second deformation plate 34, the buckle plate 324 moves into the buckle slot 311 correspondingly.

[0077] Step four: after the installation of the second filling plate 31, the third filling plate 33 is connected and installed on the sleeve 251 through the first fastening bolt 255, so as to realize the complete filling of the expansion joint and block the channel where the second filling plate 31 is separated.

[0078] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A prefabricated bridge expansion joint device, characterized in that, The system includes a deformation plate with multiple insert rods (341) running through it, and a filling plate. At least two filling plates are provided, with the two filling plates respectively located on both sides of the deformation plate. Slots are provided on the sides of the two filling plates that are close to each other, and the ends of the insert rods (341) extend into the slots. Multiple sets of support mechanisms are provided below the surface formed by the splicing of the deformation plate and the filling plate. The multiple sets of support mechanisms are evenly distributed along the length of the filling plate, and their ends are inserted into the adjacent precast beams (1). The deformation plate is set as a first deformation plate (21), the first deformation plate (21) is set as a rubber plate, the filling plate is set as a first filling plate (23), the length of the first filling plate (23) is equal to the length of the first deformation plate (21), and the two first filling plates (23) are respectively in contact with two adjacent precast beams (1) on their respective sides away from each other. At the same time, the two first filling plates (23) are provided with second slots (231) on their respective sides close to each other. The end of the insert rod (341) is inserted into the second slots (231) of the two first filling plates (23), and the end of the insert rod (341) does not contact the end wall of the second slot (231). The support mechanism is configured as a first support mechanism (22), which includes a first rod (24) and two sets of first connecting mechanisms (25). The two sets of first connecting mechanisms (25) are both sleeved on the first rod (24) and connected to the first filling plate (23) at the top. The first connecting mechanism (25) includes a sleeve (251) and a first fastening bolt (255). A first connecting plate (252) is fixedly provided on the sleeve (251). A threaded hole is provided on the first connecting plate (252). The bottom thread of the first fastening bolt (255) is inserted into the threaded hole. A plurality of recessed grooves (232) are provided on the lower side of the first filling plate (23), and a plurality of first countersunk holes (233) are provided on the upper side. The sleeve (251) is positioned opposite the recessed grooves (232), and the top of the first fastening bolt (255) is located in the first countersunk hole (233).

2. The prefabricated bridge expansion joint device according to claim 1, characterized in that: The first rod (24) includes an intermediate rod (243) and two end rods (242) located on the same straight line. A connecting groove (244) is provided on the end face of the two end rods (242) that are close to each other. An end post (245) is fixedly provided at the end of the intermediate rod (243) and the end post (245) is inserted into the connecting groove (244).

3. The prefabricated bridge expansion joint device according to claim 1, characterized in that: A first slot (11) is provided on the side of two adjacent precast beams (1) that are close to each other. The number of first slots (11) is equal to that of the support mechanism, and the end of the first rod (24) is inserted into the first slot (11) while the end does not contact the end wall of the first slot (11).

4. A prefabricated bridge expansion joint device, characterized in that, The system includes a deformation plate with multiple insert rods (341) running through it, and a filling plate. At least two filling plates are provided, with the two filling plates respectively located on both sides of the deformation plate. Slots are provided on the sides of the two filling plates that are close to each other, and the ends of the insert rods (341) extend into the slots. Multiple sets of support mechanisms are provided below the surface formed by the splicing of the deformation plate and the filling plate. The multiple sets of support mechanisms are evenly distributed along the length of the filling plate, and their ends are inserted into the adjacent precast beams (1). The deformation plate is set as a first deformation plate (21), the first deformation plate (21) is set as a rubber plate, the filling plate is set as a first filling plate (23), the length of the first filling plate (23) is equal to the length of the first deformation plate (21), and the two first filling plates (23) are respectively in contact with two adjacent precast beams (1) on their respective sides away from each other. At the same time, the two first filling plates (23) are provided with second slots (231) on their respective sides close to each other. The end of the insert rod (341) is inserted into the second slots (231) of the two first filling plates (23), and the end of the insert rod (341) does not contact the end wall of the second slot (231). The support mechanism is configured as a first support mechanism (22), which includes a second rod (27) and two sets of second connecting mechanisms (26). The second connecting mechanism (26) includes a fixed arc plate (262) and a clamping arc plate (261). The clamping arc plate (261) is connected to the fixed arc plate (262) by a second fastening bolt (264) and is disposed below the fixed arc plate (262). The second rod (27) passes through the space formed by the fixed arc plate (262) and the clamping arc plate (261). A second connecting plate (263) is fixedly disposed on the fixed arc plate (262). The second connecting plate (263) is provided with a threaded hole, and a first fastening bolt (255) is threaded into the threaded hole. The top of the first fastening bolt (255) is located in the first countersunk hole (233).

5. A prefabricated bridge expansion joint device according to claim 4, characterized in that: A first slot (11) is provided on the side of two adjacent precast beams (1) that are close to each other. The number of first slots (11) is equal to that of the support mechanism, and the end of the second rod (27) is inserted into the first slot (11) while the end does not contact the end wall of the first slot (11).

Images