Bridge rapid widening connection reinforcing structure

Abstract

The utility model discloses a kind of existing bridge quick splicing and connection reinforcing structure, two bridge bodies opposite side wall each installation has one reinforcing support frame, supporting platform plate lower end two sides are respectively inserted in corresponding reinforcing support frame;Supporting platform plate top end is fixedly installed with stabilizing frame, stabilizing frame top end is installed with support platform, support platform two ends are respectively connected with two bridge body side wall.The utility model relates to bridge structure technical field, using stabilizing frame and reinforcing support frame design, realize quick installation by lifting after bolt locking, significantly reduce field welding or pouring operation, by the synergistic effect of support platform and stabilizing frame, load is effectively transmitted to reinforcing support frame and original bridge main structure, the overall rigidity and anti-deformation capacity of splicing and connection area are enhanced, ensure the close connection between new and old structure.

Description

Technical Field

[0001] This utility model relates to the field of bridge structure technology, specifically to a rapid widening and reinforcement structure for existing bridges. Background Technology

[0002] To meet the increasing demands of urban traffic, widening and reinforcing bridges has become an important technical means to improve the functionality of existing bridges.

[0003] Traditional bridge widening methods often involve on-site casting or large-scale precast component connections, which have problems such as long construction cycles, significant damage to the original structure, and significant traffic disruption. Relying on complex on-site welding or concrete casting operations is not only inefficient, but also has defects such as poor synergistic stress performance between the old and new structures and stress concentration at the connection points. Utility Model Content

[0004] This utility model aims to provide a rapid widening and reinforcement structure for existing bridges, which can ensure a tight connection between the old and new structures and has a certain deformation adaptability. It is suitable for widening requirements of different spans and bridge types, and the on-site assembly is simple and quick.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a quick-width connection and reinforcement structure for existing bridges, comprising two bridge bodies spaced apart on the left and right, a reinforcement support frame installed on each of the opposite side walls of the two bridge bodies, and a portal-shaped support platform plate installed between the two reinforcement support frames.

[0006] The lower ends of the support platform plate are respectively inserted into the corresponding reinforced support frame and locked in place by positioning bolts; a stabilizing frame is fixedly installed on the top of the support platform plate, and a support platform is installed on the top of the stabilizing frame. The two ends of the support platform are respectively connected to the two side walls of the bridge body.

[0007] Preferably, the reinforced support frame includes a fixing plate, and a U-shaped plate with an opening facing the fixing plate is welded to the outside of the side wall of the fixing plate. The front and rear sides of the fixing plate are installed on the side wall of the bridge body by bolts, and there are three positioning bolts in total, which are spaced apart on the left and right.

[0008] Preferably, the stabilizer includes two left and right support rods, which are respectively fixedly installed on the upper sides of the support platform plate. The top of the two support rods is equipped with an upward-facing U-shaped bracket, and the support platform falls exactly into the U-shaped bracket.

[0009] Preferably, the supporting platform includes a supporting plate that falls exactly into the U-shaped bracket. Mounting plates are fixedly installed on the left and right sides of the lower end of the supporting plate. An auxiliary pad is installed on the upper end of the side wall of the bridge body. Bolts pass through the mounting plate and the auxiliary pad in sequence and are then connected to the bridge body.

[0010] Preferably, a triangular reinforcing rib is welded to the bottom of the reinforced support frame.

[0011] This utility model has the following beneficial effects: It adopts a design of a stabilizing frame and a reinforced support frame, achieving rapid installation through bolt locking after lifting, significantly reducing on-site welding or pouring work, greatly shortening the construction cycle, and reducing interference with existing traffic. Furthermore, through the synergistic effect of the support platform plate and the stabilizing frame, the load is effectively transferred to the reinforced support frame and the original bridge main structure, enhancing the overall rigidity and deformation resistance of the widening area. The insertion design of the portal-shaped support platform plate and the reinforced support frame, combined with the fastening method of the positioning bolts, ensures a tight connection between the old and new structures, while also possessing a certain degree of deformation adaptability, suitable for widening requirements of different spans and bridge types. The main components are all prefabricated in the factory, requiring only simple assembly on-site, reducing labor and material waste and lowering the overall cost. Attached Figure Description

[0012] Figure 1 This is a front-view three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below.

[0014] Figure 3 This is a cross-sectional view of the present invention.

[0015] In the diagram: 1. Bridge body, 2. Support platform plate, 3. Triangular reinforcing rib, 4. Positioning bolt, 5. Fixing plate, 6. U-shaped plate, 7. Support rod, 8. U-shaped bracket, 9. Support plate, 10. Mounting plate, 11. Auxiliary pad. Detailed Implementation

[0016] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] like Figures 1-3 As shown, a rapid widening and reinforcement structure for existing bridges includes two bridge bodies 1 spaced apart on the left and right sides, with a reinforcement support frame installed on each of the opposite side walls of the two bridge bodies 1. A portal-shaped support platform plate 2 is installed between the two reinforcement support frames.

[0018] The lower ends of the support platform plate 2 are inserted into the corresponding reinforced support frames on both sides and locked in place by positioning bolts 4. A stabilizing frame is fixedly installed at the top of the support platform plate 2, and a support platform is installed at the top of the stabilizing frame. The two ends of the support platform are connected to the side walls of the two bridge bodies 1 respectively.

[0019] Ideally, the reinforced support frame consists of a fixed plate 5 and a U-shaped plate 6. The U-shaped plate 6 with an opening facing the fixed plate 5 is welded to the outside of the side wall of the fixed plate 5. The front and rear sides of the fixed plate 5 are installed on the side wall of the bridge body 1 by bolts. There are three positioning bolts 4 in total, which are spaced apart on the left and right, but not limited to three.

[0020] The stabilizing frame consists of a U-shaped bracket 8 and two left and right support rods 7. The two support rods 7 are fixedly installed on both sides of the upper end of the support platform plate 2, and the top of the two support rods 7 is equipped with an upward-facing U-shaped bracket 8. The support platform falls exactly into the U-shaped bracket 8, and the stabilizing frame supports the support platform.

[0021] The support platform includes a support plate 9, which fits perfectly into the U-shaped bracket 8. Mounting plates 10 are fixedly installed on the left and right sides of the lower end of the support plate 9, and auxiliary pads 11 are installed on the upper side wall of the bridge body 1. Bolts pass through the mounting plates 10 and auxiliary pads 11 in sequence and are then connected to the bridge body 1, thereby realizing the installation and fixation of the left and right ends of the support platform on the bridge body 1.

[0022] Triangular reinforcing ribs 3 are welded below the reinforced support frame to increase strength.

[0023] When connecting and reinforcing the two bridge bodies 1 of an existing bridge, the support platform plate 2 is first fixedly connected to the stabilizing frame. The workers then fix the two reinforcing support frames to the side walls of the two bridge bodies 1 with bolts. According to the spacing between the two reinforcing support frames, the lower sides of the support platform plate 2 of the specified specifications are inserted into the two reinforcing support frames, and the positioning bolts 4 are screwed into the positioning plate 3 and the reinforcing support frame to fix the position of the support platform plate 2. Then, the support platform is placed on the stabilizing frame above the support platform plate 2, and the two ends of the support platform are connected to the two bridge bodies 1 for a second time. After the connection is completed, the road surface is paved on the two bridge bodies 1 and the upper part of the support platform. Through the synergistic effect of the support platform and the stabilizing frame, the load is effectively transferred to the reinforcing support frame and the original bridge main structure, which enhances the overall rigidity and deformation resistance of the widened area.

[0024] The support plate 9 is initially supported and fixed, and its load is transferred, by contacting the lower end of the support plate 9 with the U-shaped bracket 8. Then, bolts are used to connect the two mounting plates 10 and the two auxiliary pads 11, connecting the lower sides of the support plate 9 to the two bridge bodies 1, ensuring the overall stability and installation strength of the support plate 9. The support platform plate 2 is n-shaped, allowing for quick insertion and installation, facilitating subsequent bolt installation.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid widening and reinforcement structure for existing bridges, comprising two bridge bodies (1) spaced apart on the left and right, characterized in that, A reinforcing support frame is installed on each of the two opposite side walls of the two bridge bodies (1), and a portal-shaped support platform plate (2) is installed between the two reinforcing support frames. The lower two sides of the support platform plate (2) are respectively inserted into the corresponding reinforced support frame and locked and fixed by positioning bolts (4); a stabilizing frame is fixedly installed on the top of the support platform plate (2), and a support platform is installed on the top of the stabilizing frame. The two ends of the support platform are respectively connected to the side walls of the two bridge bodies (1).

2. The rapid widening and reinforcement structure for existing bridges according to claim 1, characterized in that, The reinforced support frame includes a fixed plate (5), and a U-shaped plate (6) with an opening facing the fixed plate (5) is welded to the outside of the side wall of the fixed plate (5). The front and rear sides of the fixed plate (5) are installed on the side wall of the bridge body (1) by bolts. There are three positioning bolts (4) in total, which are spaced apart on the left and right.

3. The rapid widening and reinforcement structure for existing bridges according to claim 1, characterized in that, The stabilizer includes two left and right support rods (7), which are fixedly installed on the upper sides of the support platform plate (2). The top of the two support rods (7) is equipped with an upward-facing U-shaped bracket (8), and the support platform falls into the U-shaped bracket (8).

4. The rapid widening and reinforcement structure for existing bridges according to claim 3, characterized in that, The supporting platform includes a support plate (9), which falls exactly into the U-shaped bracket (8). Mounting plates (10) are fixedly installed on the left and right sides of the lower end of the support plate (9). An auxiliary pad (11) is installed on the upper side wall of the bridge body (1). Bolts pass through the mounting plate (10) and the auxiliary pad (11) in sequence and are then connected to the bridge body (1).

5. The rapid widening and reinforcement structure for existing bridges according to claim 2, characterized in that, The reinforced support frame is welded with triangular reinforcing ribs (3) below.

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