Steel structure bridge reinforcing and widening structure

Abstract

The invention belongs to the technical field of steel structure bridges, and discloses a steel structure bridge reinforcing and widening structure which is technically characterized in that the steel structure bridge reinforcing and widening structure comprises a bridge deck slab and a widening bridge deck slab, connecting grooves are formed in the two side walls, opposite to the widening bridge deck slab, of the bridge deck slab correspondingly, and connecting plates are detachably installed in the connecting grooves; a plurality of sets of vertical rods distributed at equal intervals are fixedly installed in the middle of the bottom wall of the connecting plate, a fixing mechanism matched with the connecting groove is arranged on the surface of the connecting plate, the fixing mechanism comprises a clamping assembly and an adjusting assembly, the bottom ends of the vertical rods are connected with a supporting mechanism, and the supporting mechanism comprises a supporting assembly and a lifting assembly. Through mutual cooperation of the clamping assemblies and the adjusting assemblies, the connecting plates can be conveniently fixed and disassembled in the connecting grooves in the side walls of the bridge deck slab and the widened bridge deck slab, and then the bridge deck slab and the widened bridge deck slab can be stably connected and rapidly disassembled.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure bridges, and specifically to a reinforcement and widening structure for a steel structure bridge. Background Art

[0002] A steel structure bridge is a bridge built using steel structures. Generally, a bridge with a steel consumption of more than 50% in the whole is called a "large steel structure bridge". Its main body is alloy steel. After producing parts, they are assembled and welded. It is a relatively fashionable new way of bridge construction at present. With the rapid development of urban construction in China and the increasing maturity and development of technologies such as fatigue, welding, vibration of steel structure bridges and the design, manufacture, and construction of the upper and lower structures of bridges, steel structure bridges have been widely used in railway, highway, railway-highway dual-purpose bridges, and pedestrian bridges.

[0003] When widening existing steel structure bridges, the widened bridge deck is usually directly welded or bolted. When using this existing connection method, it is impossible to conveniently install and disassemble the widened bridge deck, the connection of the bridge deck is not firm enough, and the stability is relatively low. Summary of the Invention

[0004] The purpose of the present invention is to provide a reinforcement and widening structure for a steel structure bridge to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A reinforcement and widening structure for a steel structure bridge includes a bridge deck and a widened bridge deck. A plurality of groups of first support legs are arranged side by side on the bottom wall of the bridge deck, and a plurality of groups of second support legs are arranged side by side on the bottom wall of the widened bridge deck. Connecting grooves are respectively opened on the opposite side walls of the bridge deck and the widened bridge deck. A connecting plate is detachably installed in the connecting groove. A plurality of groups of vertical rods are fixedly installed at the middle of the bottom wall of the connecting plate at equal intervals. Openings are respectively opened on the bottom walls of the bridge deck and the widened bridge deck and are matched with the vertical rods. A fixing mechanism is arranged on the surface of the connecting plate and is matched with the connecting groove. The fixing mechanism includes a clamping component and an adjusting component. The clamping component is located on the surface of the connecting plate and is connected with the connecting groove. The adjusting component is located inside the connecting plate and is connected with the clamping component. The adjusting component is used to install and disassemble the connecting plate in the connecting groove by cooperating with the clamping component, so as to install and disassemble the widened bridge deck outside the bridge deck. The bottom end of the vertical rod is connected with a support mechanism. The support mechanism includes a support component and a lifting component. The support component is located between the first support leg and the second support leg and is connected with the vertical rod. The lifting component is connected with the support component. The lifting component provides a vertically upward thrust to the vertical rod and the connecting plate by cooperating with the support component.

[0007] As a further solution of the present invention: The clamping component includes a plurality of groups of uniformly distributed receiving grooves respectively opened on the upper and lower side walls of the connecting plate. A clamping column is slidably installed in the receiving groove. A first compression spring is fixedly installed in the receiving groove. The telescopic end of the first compression spring is connected to the clamping column. A plurality of groups of clamping grooves cooperating with the clamping column are respectively opened on the top wall and the bottom wall of the connecting groove.

[0008] As a further solution of the present invention: The adjusting component includes a control cavity opened inside the connecting plate. The control cavity is located between the upper and lower receiving grooves. A control plate is slidably installed in the control cavity. A second compression spring is fixedly installed at one end of the control cavity close to the vertical rod. The telescopic end of the second compression spring is connected to the control plate. A connecting rope is fixedly installed at one end of the clamping column located in the receiving groove. The end of the connecting rope far from the clamping column extends into the control cavity and is connected to the control plate. A wire groove communicating with the control cavity is inwardly opened on the side wall of the vertical rod. A pulling rope is fixedly installed on the side wall of the control plate. The pulling rope passes through the wire groove and extends to the outside of the vertical rod and is fixedly installed with a control ring.

[0009] As a further solution of the present invention: The supporting component includes a base. A vertical cylinder is fixedly installed on the surface of the base. The vertical rod is slidably installed in the vertical cylinder in the vertical direction. Support rods are respectively rotatably installed on the opposite side walls of the base. A hoop is rotatably installed at one end of the support rod far from the base. The hoops on both sides of the base are respectively installed on the surfaces of the first support leg and the second support leg.

[0010] As a further solution of the present invention: The lifting component includes a threaded hole opened inside the vertical rod. A threaded rod cooperating with the threaded hole is rotatably installed in the vertical cylinder. The bottom end of the threaded rod extends below the base and is fixedly installed with a control disk. A fixing bolt connecting to the base is arranged on the surface of the control disk.

[0011] As a further solution of the present invention: A protective wheel cooperating with the connecting rope is rotatably installed in the control cavity.

[0012] As a further solution of the present invention: A limiting groove is opened on the inner side wall of the vertical cylinder. A limiting block is fixedly installed on the side wall of the vertical rod. The limiting block and the limiting groove are slidably connected in the vertical direction.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: By arranging the clamping component and the adjusting component to cooperate with each other, the connecting plate can be conveniently fixed and disassembled in the connecting grooves at the bridge deck and the side wall of the widened bridge deck, and thus the bridge deck and the widened bridge deck can be stably connected and quickly disassembled; By arranging the supporting component and the lifting component to cooperate with each other, the connecting plate can be controlled to apply an upward thrust at the joint of the bridge deck and the widened bridge deck, effectively improving the stability of the joint of the bridge deck and the widened bridge deck. It solves the problems that the current connection methods of welding fixation or bolt fixation cannot conveniently install and disassemble the widened bridge deck, and the connection of the bridge deck is not firm enough and the stability is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 6 is a three-dimensional structural schematic diagram of a steel structure bridge reinforcement and widening structure provided in an embodiment of the present invention.

[0015] Figure 2 FIG. 10 is a front structural schematic diagram of a steel structure bridge reinforcement and widening structure provided in an embodiment of the present invention.

[0016] Figure 3 is Figure 2 an enlarged structural schematic diagram of A in FIG.

[0017] Figure 4 FIG. 20 is a schematic diagram of a connecting plate and its connection structure in a steel structure bridge reinforcement and widening structure provided in an embodiment of the present invention.

[0018] Figure 5 FIG. 24 is a schematic diagram of a vertical rod and its connection structure in a steel structure bridge reinforcement and widening structure provided in an embodiment of the present invention.

[0019] Wherein: 1 - bridge deck, 11 - first support leg, 2 - widened bridge deck, 21 - second support leg, 3 - connecting groove, 4 - connecting plate, 41 - vertical rod, 42 - opening, 5 - fixing mechanism, 51 - clamping component, 511 - receiving groove, 512 - first compression spring, 513 - clamping groove, 514 - clamping post, 52 - adjusting component, 521 - control cavity, 522 - control plate, 523 - connecting rope, 524 - second compression spring, 525 - wire groove, 526 - pulling rope, 527 - control ring, 6 - support mechanism, 61 - support component, 611 - base, 612 - vertical cylinder, 613 - support rod, 614 - hoop, 62 - lifting component, 621 - threaded hole, 622 - threaded rod, 623 - control disk, 624 - fixing bolt, 7 - protective wheel, 8 - limiting groove, 9 - limiting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0021] The following will describe the specific implementation of the present invention in detail in combination with specific embodiments.

[0022] As Figure 1 , Figure 2 , Figure 3 shown, it is a structural diagram of a steel structure bridge reinforcement and widening structure provided by an embodiment of the present invention, including a bridge deck 1 and a widened bridge deck 2. A plurality of groups of first support legs 11 distributed in parallel are arranged on the bottom wall of the bridge deck 1, and a plurality of groups of second support legs 21 distributed in parallel are arranged on the bottom wall of the widened bridge deck 2. Connecting grooves 3 are respectively formed on the opposite side walls of the bridge deck 1 and the widened bridge deck 2. A connecting plate 4 is detachably installed in the connecting groove 3. A plurality of vertical rods 41 distributed at equal intervals are fixedly installed in the middle of the bottom wall of the connecting plate 4. Openings 42 matching with the vertical rods 41 are respectively formed on the bottom walls of the bridge deck 1 and the widened bridge deck 21. A fixing mechanism 5 matching with the connecting groove 3 is arranged on the surface of the connecting plate 4. The fixing mechanism 5 includes a clamping component 51 and an adjusting component 52. The clamping component 51 is located on the surface of the connecting plate 4 and is connected to the connecting groove 3. The adjusting component 52 is located in the connecting plate 4 and is connected to the clamping component 51. The adjusting component 52 is used to install and disassemble the connecting plate 4 in the connecting groove 3 by cooperating with the clamping component 51, so as to install and disassemble the widened bridge deck 2 outside the bridge deck 1. The bottom end of the vertical rod 41 is connected to a support mechanism 6. The support mechanism 6 includes a support component 61 and a lifting component 62. The support component 61 is located between the first support leg 11 and the second support leg 21 and is connected to the vertical rod 41. The lifting component 62 is connected to the support component 61. The lifting component 62 provides a vertically upward thrust to the vertical rod 41 and the connecting plate 4 by cooperating with the support component 61.

[0023] When widening the bridge deck 1, first insert the connecting plate 4 into the connecting groove 3 on the side wall of the bridge deck 1. The adjusting assembly 52 and the clamping assembly 51 cooperate with each other to initially fix the connecting plate 4 in the connecting groove 3. Hoist the widened bridge deck 2 to the position aligned with the bridge deck 1. The second support leg 21 initially supports the widened bridge deck 2. Insert the connecting groove 3 on the side wall of the widened bridge deck 2 outside the connecting plate 4. The adjusting assembly 52 and the clamping assembly 51 cooperate with each other to conveniently fix the connecting plate 4 in the two groups of connecting grooves 3. The cooperation between the connecting plate 4 and the connecting groove 3 can further stably fix the connection between the bridge deck 1 and the widened bridge deck 2, effectively improving the stability of the joint between the bridge deck 1 and the widened bridge deck 2. After the fixed connection, the support assembly 61 and the lifting assembly 62 cooperate with each other. Between the first support leg 11 and the second support leg 21, a vertically upward thrust can be applied to the vertical rod 41. The vertical rod 41 synchronously applies a vertically upward thrust to the connecting plate 4. The connecting plate 4 in the connecting groove 3 can further support and position the bridge deck 1 and the widened bridge deck 2, effectively improving the firmness and stability of the bridge deck 1 and the widened bridge deck 2.

[0024] As Figure 2 , Figure 3 , Figure 4 , Figure 5 shown, as a preferred embodiment of the present invention, the clamping assembly 51 includes a plurality of groups of uniformly distributed receiving grooves 511 respectively opened on the upper and lower side walls of the connecting plate 4. A clamping column 514 is slidably installed in the receiving groove 511. A first compression spring 512 is fixedly installed in the receiving groove 511. The telescopic end of the first compression spring 512 is connected to the clamping column 514. A plurality of clamping grooves 513 cooperating with the clamping column 514 are respectively opened on the top wall and the bottom wall of the connecting groove 3.

[0025] Initially, the first compression spring 512 exerts a thrust force on the clamping post 514. The clamping post 514 extends outside the connecting plate 4. When it is necessary to connect the widened bridge deck 2, the adjusting assembly 52 controls the overall movement of multiple groups of clamping posts 514 into the receiving groove 511. At this time, the connecting plate 4 is inserted into the connecting groove 3 on the side wall of the bridge deck 1. The adjusting assembly 52 releases the restriction on the clamping post 514, and the clamping post 514 is re-inserted into the clamping groove 513 inside the bridge deck 1, so that the connecting plate 4 can be conveniently fixed to the side wall of the bridge deck 1. Then, the connecting groove 3 on the side wall of the widened bridge deck 2 is inserted outside the connecting plate 4. During the insertion process, the adjusting assembly 52 controls the overall movement of multiple groups of clamping posts 514 into the receiving groove 511. After the connecting groove 3 on the side wall of the widened bridge deck 2 is completely inserted outside the connecting plate 4, the adjusting assembly 52 releases the restriction on the clamping post 514 again. Multiple groups of clamping posts 514 are respectively inserted into the clamping grooves 513 in the bridge deck 1 and the widened bridge deck 2. At this time, the connecting plate 4 is fixed in the two connecting grooves 3. The connecting plate 4 and the connecting groove 3 cooperate with each other to stably connect the joint of the bridge deck 1 and the widened bridge deck 2.

[0026] As Figure 2 , Figure 3 , Figure 4 , Figure 5 shown, as a preferred embodiment of the present invention, the adjusting assembly 52 includes a control cavity 521 opened inside the connecting plate 4. The control cavity 521 is located between the upper and lower receiving grooves 511. A control plate 522 is slidably installed in the control cavity 521. A second compression spring 524 is fixedly installed at one end of the control cavity 521 close to the vertical rod 41. The telescopic end of the second compression spring 524 is connected to the control plate 522. One end of the clamping post 514 located in the receiving groove 511 is fixedly installed with a connecting rope 523. The end of the connecting rope 523 away from the clamping post 514 extends into the control cavity 521 and is connected to the control plate 522. A wire groove 525 communicating with the control cavity 521 is inwardly opened on the side wall of the vertical rod 41. A pulling rope 526 is fixedly installed on the side wall of the control plate 522. The pulling rope 526 passes through the wire groove 525 and extends outside the vertical rod 41 and is fixedly installed with a control ring 527.

[0027] When installing the connecting plate 4, pull down the control ring 527 outside the vertical rod 41. The control ring 527 cooperates with the pulling rope 526, which can drive the control plate 522 to move synchronously in the control cavity 521. The control plate 522 cooperates with the connecting rope 523, which can pull the clamping column 514 to move into the receiving groove 511. After the whole clamping column 514 moves into the receiving groove 511, the connecting plate 4 can be conveniently inserted into the connecting groove 3. After the connecting plate 4 is inserted into the connecting groove 3, release the pulling force on the control ring 527. The first compression spring 512 exerts a thrust on the clamping column 514, and the clamping column 514 is inserted into the clamping groove 513. At this time, the connecting plate 4 can be stably fixed in the connecting groove 3.

[0028] As Figure 1 , Figure 2 , Figure 4 shown, as a preferred embodiment of the present invention, the support assembly 61 includes a base 611. A vertical cylinder 612 is fixedly installed on the surface of the base 611. The vertical rod 41 is slidably installed in the vertical cylinder 612 in the vertical direction. Support rods 613 are rotatably installed on the opposite side walls of the base 611. A hoop 614 is rotatably installed at one end of the support rod 613 away from the base 611. The hoops 614 on both sides of the base 611 are respectively installed on the surfaces of the first support leg 11 and the second support leg 21.

[0029] During use, fix the two hoops 614 on the surfaces of the first support leg 11 and the second support leg 21 respectively. The hoops 614 cooperate with the support rods 613 to support and position the base 611. The base 611 cooperates with the vertical cylinder 612 to support the vertical rod 41. The vertical rod 41 can support the connecting plate 4 synchronously. The connecting plate 4 can stably support the bridge deck 1 and the widened bridge deck 2 at the joint.

[0030] As Figure 1 , Figure 2 , Figure 4 shown, as a preferred embodiment of the present invention, the lifting assembly 62 includes a threaded hole 621 opened inside the vertical rod 41. A threaded rod 622 that cooperates with the threaded hole 621 is rotatably installed in the vertical cylinder 612. The bottom end of the threaded rod 622 extends below the base 611 and is fixedly installed with a control disk 623. A fixing bolt 624 connected to the base 611 is arranged on the surface of the control disk 623.

[0031] After the position height of the base 611 is fixed, hold the control disk 623 and rotate it. The control disk 623 drives the threaded rod 622 to rotate. The threaded rod 622 is in screw drive with the threaded hole 621, and then it can push the vertical rod 41 to move vertically in the vertical cylinder 612. The vertical rod 41 can synchronously exert an upward vertical thrust on the connecting plate 4.

[0032] As Figure 2 , Figure 3 shown, as a preferred embodiment of the present invention, a protective wheel 7 cooperating with the connecting rope 523 is rotatably installed in the control cavity 521.

[0033] As Figure 2 , Figure 3 shown, as a preferred embodiment of the present invention, a limiting groove 8 is formed in the inner side wall of the vertical cylinder 612, a limiting block 9 is fixedly installed on the side wall of the vertical rod 41, and the limiting block 9 is slidably connected with the limiting groove 8 in the vertical direction.

[0034] The working principle of the present invention is as follows: When widening the bridge deck 1, the control ring 527 is pulled downward outside the vertical rod 41. The control ring 527 cooperates with the pulling rope 526, and can pull the control plate 522 to move synchronously in the control cavity 521. The control plate 522 cooperates with the connecting rope 523, and can pull the clamping column 514 to move into the receiving groove 511. After the whole clamping column 514 moves into the receiving groove 511, the connecting plate 4 can be conveniently inserted into the connecting groove 3. After the connecting plate 4 is inserted into the connecting groove 3, the pulling force on the control ring 527 is released. The first compression spring 512 exerts a thrust on the clamping column 514, and the clamping column 514 is inserted into the clamping groove 513. At this time, the connecting plate 4 can be stably fixed in the connecting groove 3. The cooperation between the connecting plate 4 and the connecting groove 3 can further stably fix the joint of the bridge deck 1 and the widened bridge deck 2, effectively improving the stability of the joint between the bridge deck 1 and the widened bridge deck 2. After the fixed connection, the two sets of hoop 614 are respectively fixed on the surfaces of the first support leg 11 and the second support leg 21. The hoop 614 cooperates with the support rod 613 to support and position the base 611. The base 611 cooperates with the vertical cylinder 612 to support the vertical rod 41. The vertical rod 41 can support the connecting plate 4 synchronously. The connecting plate 4 can stably support the bridge deck 1 and the widened bridge deck 2 at the joint.

[0035] The above has described the preferred embodiments of the present invention in detail, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A steel structure bridge reinforcement and widening structure, comprising a bridge deck and a widened bridge deck, wherein the bottom wall of the bridge deck is provided with a plurality of groups of first supporting legs distributed in parallel, and the bottom wall of the widened bridge deck is provided with a plurality of groups of second supporting legs distributed in parallel, characterized in that: The two side walls of the bridge deck and the widened bridge deck opposite to each other are respectively provided with connection grooves, a connection plate is detachably installed in the connection groove, a plurality of groups of vertical rods with equal spacing are fixedly installed in the middle of the bottom wall of the connection plate, and the bottom walls of the bridge deck and the widened bridge deck are respectively provided with openings that cooperate with the vertical rods; The surface of the connecting plate is provided with a fixing mechanism that cooperates with the connecting groove, and the fixing mechanism includes a clamping assembly and an adjusting assembly; The clamping assembly is located on the surface of the connecting plate and connected to the connecting groove, the adjusting assembly is located in the connecting plate and connected to the clamping assembly, and the adjusting assembly is used to install and remove the connecting plate in the connecting groove by cooperating with the clamping assembly, and then install and remove the widened bridge deck on the outside of the bridge deck; The bottom end of the vertical rod is connected to a support mechanism, and the support mechanism includes a support component and a lifting component; The support assembly is located between the first support leg and the second support leg and is connected to the vertical rod. The lifting assembly is connected to the support assembly. The lifting assembly provides a vertical upward thrust to the vertical rod and the connecting plate by cooperating with the support assembly.

2. A steel structure bridge reinforcement and widening structure according to claim 1, characterized in that: The clamping assembly includes a plurality of evenly distributed receiving grooves respectively provided on the upper and lower side walls of the connecting plate, a clamping column is slidably installed in the receiving groove, a first extrusion spring is fixedly installed in the receiving groove, the telescopic end of the first extrusion spring is connected to the clamping column, and a plurality of clamping grooves cooperating with the clamping column are respectively provided on the top wall and the bottom wall of the connecting groove.

3. The steel structure bridge reinforcement and widening structure according to claim 2 is characterized in that: The adjustment assembly includes a control cavity opened inside the connecting plate, the control cavity is located between the upper and lower storage grooves, a control plate is slidably installed in the control cavity, a second extrusion spring is fixedly installed at one end of the control cavity close to the vertical rod, the telescopic end of the second extrusion spring is connected to the control plate, a connecting rope is fixedly installed at one end of the clamping column located in the storage groove, the connecting rope extends into the control cavity and is connected to the control plate at one end away from the clamping column, a wire groove connected to the control cavity is opened inwardly on the side wall of the vertical rod, a pulling rope is fixedly installed on the side wall of the control plate, the pulling rope passes through the wire groove and extends to the outside of the vertical rod and is fixedly installed with a control ring.

4. The steel structure bridge reinforcement and widening structure according to claim 1 is characterized in that: The support assembly includes a base, a vertical cylinder is fixedly installed on the surface of the base, the vertical rod is slidably installed in the vertical cylinder along the vertical direction, support rods are rotatably installed on two side walls of the base opposite to each other, a clamp is rotatably installed on one end of the support rod away from the base, and the clamps on both sides of the base are respectively installed on the surface of the first support leg and the second support leg.

5. The steel structure bridge reinforcement and widening structure according to claim 4 is characterized in that: The lifting assembly includes a threaded hole opened inside the vertical rod, a threaded rod that cooperates with the threaded hole is rotatably installed in the vertical tube, the bottom end of the threaded rod extends to the bottom of the base and is fixedly installed with a control panel, and the surface of the control panel is provided with fixing bolts connected to the base.

6. The steel structure bridge reinforcement and widening structure according to claim 3 is characterized in that: A protection wheel that cooperates with the connecting rope is rotatably installed in the control cavity.

7. The steel structure bridge reinforcement and widening structure according to claim 4 is characterized in that: The inner side wall of the vertical cylinder is provided with a limiting groove, and the side wall of the vertical rod is fixedly installed with a limiting block, and the limiting block is slidably connected with the limiting groove along the vertical direction.

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