Lattice type steel pipe column temporary supporting structure for long-span bridge construction

Abstract

The utility model discloses a large-span bridge construction lattice type steel pipe column temporary supporting structure which comprises a bottom plate, four fixing sleeves are arranged on the upper side of the bottom plate, steel pipes are inserted into the fixing sleeves, the upper ends of the four steel pipes are all connected with connecting assemblies in an inserted mode, stay cable assemblies are arranged on the upper side of the bottom plate, and the stay cable assemblies are connected with the connecting assemblies in an inserted mode. According to the stay cable assembly, the stability of the four erected steel pipes is improved by pulling the connecting assembly obliquely downwards, a plurality of fixing frames are arranged on the four steel pipes, and each fixing frame is fixed to the four steel pipes at the same time. The device has the beneficial effects that the two ends of the steel pipes can be fixed through cooperation of the connecting assemblies and the four fixing sleeves, the four steel pipes can be combined through cooperation of the multiple fixing frames, the stability of the erected steel pipes is improved, the connecting assemblies are tensioned through the stay cable assemblies, the capacity of coping with transverse shear force after the four steel pipes are erected is enhanced, and the stability of the steel pipes is improved. Therefore, the overall stability of the device can be further improved, and the device not only is convenient to build, but also has good stability.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, specifically relating to a temporary support structure for lattice-type steel pipe columns in the construction of long-span bridges. Background Technology

[0002] When constructing long-span bridges, temporary piers are needed to provide working conditions for arch bridge construction. Existing temporary support structures are made of several steel pipes crisscrossed together. Each connection node of the steel pipes plays a crucial role in the lattice-like spatial structure system. Therefore, it is necessary to ensure the stability and firmness of the connection nodes. Traditional connection nodes mainly include bolted connections, welded connections, and prestressed connections. With the diversification of structural types, the number of connection nodes also increases accordingly. The larger the number of connection nodes, the greater the workload. Therefore, the construction of traditional temporary support structures is labor-intensive and time-consuming. Utility Model Content

[0003] The purpose of this utility model is to provide a temporary support structure for lattice steel pipe columns in the construction of long-span bridges in order to solve the above problems, as detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides a temporary support structure for lattice-type steel pipe columns in the construction of long-span bridges, including a base plate. Four fixing sleeves are provided on the upper side of the base plate, and steel pipes are inserted into the fixing sleeves. The upper ends of the four steel pipes are all inserted into the connecting components. A cable-stayed assembly is provided on the upper side of the base plate. The cable-stayed assembly improves the stability of the four steel pipes after they are erected by pulling the connecting components diagonally downward. Several fixing frames are provided on the four steel pipes, and each fixing frame is fixed to the four steel pipes at the same time.

[0006] The above-mentioned temporary support structure for long-span bridge construction using a lattice-type steel pipe column involves assembling four steel pipes sequentially into fixed sleeves, then installing several fixed brackets along the steel pipes, and finally inserting the connecting components directly onto the tops of the four steel pipes. The installation of the connecting components does not require any parts for fixing. Finally, the connecting components are tightened using cable-stayed cables, thereby improving the overall stability of the device and enhancing its ability to withstand shear forces after the four steel pipes are erected.

[0007] Preferably, the fixing frame includes a frame, and fixing arms are installed on both sides of the frame by two bolts. Grooves are provided on both sides of the frame and the opposite surfaces of the two fixing arms. The grooves are adapted to the surface of the steel pipe. The frame can fix four steel pipes by cooperating with the two fixing arms.

[0008] Preferably, the connecting assembly includes four limiting sleeves, which are slidably disposed on the upper ends of the four steel pipes, and all four limiting sleeves are fixed to the fixing plate.

[0009] Preferably, both the fixing sleeve and the limiting sleeve are provided with fixing posts, and the fixing posts are clearance-fitted with the inner wall of the steel pipe.

[0010] Preferably, the cable-stayed assembly includes four pulling components, which are evenly distributed on the base plate with four steel pipes as the center. The movable end of each pulling component is fixed to one end of a steel cable, and the other end of the steel cable is provided with a hook, which is hooked to a fixing ring, which is fixed to the fixing plate.

[0011] Preferably, the pulling assembly includes a mounting frame, which is mounted on a base plate. Two guide rods are vertically slidably mounted on the mounting frame, and the upper ends of the two guide rods are fixed to a connecting plate. The connecting plate is fixed to one end of a steel cable. A screw is provided at the bottom of the connecting plate, and the lower end of the screw passes through a through hole opened in the mounting frame. A nut is threaded onto the surface of the screw, and the nut is larger than the through hole.

[0012] Preferably, the positioning component includes four positioning holes, which are distributed at the four corners of the base plate, and a positioning rod is slidably disposed in the positioning holes.

[0013] Preferably, the upper end of the positioning rod is provided with a second lifting lug, and both sides of the base plate are provided with a first lifting lug.

[0014] The beneficial effects are:

[0015] The steel pipes can be fixed at both ends by connecting the components and four fixing sleeves. The four steel pipes can be combined by several fixing frames to improve the stability of the steel pipes after they are erected. The connecting components are tightened by the cable-stayed assembly, which enhances the ability of the four steel pipes to withstand lateral shear forces after they are built, thereby further improving the overall stability of the device. The device is not only easy to build, but also has good stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2This is a front view structural diagram of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the fixing frame of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the fixing sleeve of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the connecting component of this utility model.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Base plate; 2. Positioning assembly; 3. Cable-stayed assembly; 4. Fixing sleeve; 5. Fixing frame; 6. Steel pipe; 7. Lifting lug one; 8. Connecting assembly; 9. Positioning rod; 10. Lifting lug two; 11. Fixing frame; 12. Connecting plate; 13. Guide rod; 14. Screw; 15. Nut; 16. Steel cable; 17. Fixing ring; 18. Hook; 19. Fixing plate; 20. Limiting sleeve; 21. Frame; 22. Fixing arm; 23. Bolt; 24. Fixing column; 25. Pulling assembly. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] See Figures 1-5 As shown, this utility model provides a temporary support structure for steel pipe columns in a lattice structure for the construction of long-span bridges. It includes a base plate 1, four fixing sleeves 4 are provided on the upper side of the base plate 1, and steel pipes 6 are inserted into the fixing sleeves 4. The upper ends of the four steel pipes 6 are all inserted into the connecting components 8. A cable-stayed assembly 3 is provided on the upper side of the base plate 1. The cable-stayed assembly 3 improves the stability of the four steel pipes 6 after they are erected by pulling the connecting components 8 diagonally downward. Several fixing frames 5 are provided on the four steel pipes 6, and each fixing frame 5 is fixed to the four steel pipes 6 at the same time.

[0026] As an optional implementation, the steel pipe 6 can be prevented from shaking by the cooperation of several fixing frames 5. The fixing frame 5 includes a frame 21. Fixing arms 22 are installed on both sides of the frame 21 by two bolts 23. Grooves are provided on both sides of the frame 21 and the opposite surfaces of the two fixing arms 22. The grooves are adapted to the surface of the steel pipe 6. The frame 21 can fix four steel pipes 6 by cooperating with the two fixing arms 22. By rotating the bolts 23, the two fixing arms 22 can be separated from the frame 21, and the fixing frame 5 can be removed from the steel pipe 6.

[0027] Furthermore, the upper ends of the four steel pipes 6 are limited by the connecting component 8. The two ends of the steel pipes 6 can be limited by the cooperation of the connecting component 8 and the four fixing sleeves 4 to ensure the stability of the steel pipes 6. The connecting component 8 includes four limiting sleeves 20, which are slidably set on the upper ends of the four steel pipes 6 respectively, and all four limiting sleeves 20 are fixed on the fixing plate 19. Fixing posts 24 are provided inside the fixing sleeves 4 and the limiting sleeves 20. The fixing posts 24 are fitted with the inner wall of the steel pipes 6 with a clearance. The setting of the fixing posts 24 can improve the limiting effect of the fixing sleeves 4 and the limiting sleeves 20 on the steel pipes 6.

[0028] Furthermore, the cable-stayed assembly 3 includes four pulling components 25, which are evenly distributed on the base plate 1 around the four steel pipes 6. The movable end of the pulling component 25 is fixed to one end of the steel cable 16, and the other end of the steel cable 16 is provided with a hook 18, which is hooked to a fixing ring 17. The fixing ring 17 is fixed to the fixing plate 19. The steel cable 16 is pulled downward by the pulling component 25 until it is taut. The pulling component 25 includes a mounting frame 11, which is set on the base plate 1. Two vertically sliding parts are mounted on the mounting frame 11. Two guide rods 13 are fixed at their upper ends to the connecting plate 12. The connecting plate 12 is fixed to one end of the steel cable 16. A screw 14 is provided at the bottom of the connecting plate 12. The lower end of the screw 14 passes through a through hole opened in the mounting bracket 11. A nut 15 is threaded onto the surface of the screw 14. The nut 15 is larger than the through hole. When the nut 15 is rotated, it can drive the connecting plate 12 to move downward through the cooperation of the two guide rods 13. The steel cable 16 can be tightened through the connecting plate 12. Under the combined force of the four steel cables 16, the stability of the device can be improved.

[0029] Furthermore, the stability of the base plate 1 can be improved by setting the positioning component 2. The positioning component 2 includes four positioning holes, which are distributed at the four corners of the base plate 1. A positioning rod 9 is slidably installed in the positioning hole. Inserting the positioning rod 9 into the ground can prevent the base plate 1 from moving. A second lifting lug 10 is provided at the upper end of the positioning rod 9. A first lifting lug 7 is provided on both sides of the base plate 1. The second lifting lug 10 facilitates the removal of the positioning rod 9 from the ground, and the first lifting lug 7 facilitates the lifting of the base plate 1.

[0030] Using the above structure, during assembly, four steel pipes 6 are inserted into the fixing sleeve 4 in sequence, and then several fixing brackets 5 are installed along the steel pipes 6 in sequence. Then, the connecting component 8 is directly inserted into the top of the four steel pipes 6. The installation of the connecting component 8 does not require any parts for fixing. Finally, the connecting component 8 is tightened by the cable assembly 3, which can improve the overall stability of the device and enhance the ability of the four steel pipes 6 to withstand shear force after being assembled.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A temporary support structure for lattice-type steel pipe columns in the construction of long-span bridges, comprising a base plate, characterized in that: Four fixing sleeves are provided on the upper side of the base plate, and steel pipes are inserted into the fixing sleeves. The upper ends of the four steel pipes are all inserted into the connecting components. An inclined cable assembly is provided on the upper side of the base plate. The inclined cable assembly improves the stability of the four steel pipes after they are erected by pulling the connecting components diagonally downward. Several fixing frames are provided on the four steel pipes, and each fixing frame is fixed to the four steel pipes at the same time.

2. The temporary support structure of lattice steel pipe columns for long-span bridge construction according to claim 1, characterized in that: The fixing frame includes a frame, and fixing arms are installed on both sides of the frame by two bolts. Grooves are provided on both sides of the frame and on the opposite surfaces of the two fixing arms. The grooves are adapted to the surface of the steel pipe. The frame can fix four steel pipes by cooperating with the two fixing arms.

3. The temporary support structure of lattice steel pipe columns for long-span bridge construction according to claim 1, characterized in that: The connecting assembly includes four limiting sleeves, which are slidably disposed on the upper ends of the four steel pipes, and all four limiting sleeves are fixed to the fixing plate.

4. The temporary support structure of lattice steel pipe columns for long-span bridge construction according to claim 1, characterized in that: Both the fixing sleeve and the limiting sleeve are equipped with fixing posts, and the fixing posts are clearance-fitted with the inner wall of the steel pipe.

5. The temporary support structure of lattice steel pipe columns for long-span bridge construction according to claim 1, characterized in that: The cable-stayed assembly includes four traction components, which are evenly distributed on the base plate with four steel pipes as the center. The movable end of each traction component is fixed to one end of a steel cable, and the other end of the steel cable is provided with a hook, which is connected to a fixing ring. The fixing ring is fixed to the fixing plate.

6. The temporary support structure for lattice-type steel pipe columns in the construction of long-span bridges according to claim 5, characterized in that: The pulling assembly includes a mounting frame, which is mounted on a base plate. Two guide rods are vertically slidably mounted on the mounting frame, and the upper ends of the two guide rods are fixed to a connecting plate. The connecting plate is fixed to one end of a steel cable. A screw is provided at the bottom of the connecting plate, and the lower end of the screw passes through a through hole opened in the mounting frame. A nut is threaded onto the surface of the screw, and the nut is larger than the through hole.

7. The temporary support structure for lattice-type steel pipe columns in the construction of long-span bridges according to claim 1, characterized in that: The base plate is provided with a positioning component, which includes four positioning holes distributed at the four corners of the base plate, and a positioning rod is slidably disposed in the positioning holes.

8. The temporary support structure for lattice-type steel pipe columns in the construction of long-span bridges according to claim 7, characterized in that: The upper end of the positioning rod is provided with a second lifting lug, and both sides of the base plate are provided with a first lifting lug.

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