A positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge

Abstract

This invention provides an installation and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge. The bracket body includes two opposing support frames connected by several crossbeams. Several fixing members protrude from opposite sides of the two support frames, and the fixing members on the two support frames are symmetrical. This positioning bracket simplifies positioning during the installation of the steel diagonal brace, eliminating the need for jacks, reducing the time workers spend working at heights outside the structure, improving worker safety, reducing safety hazards, minimizing the impact of tensile forces on the structure during installation, and facilitating fine-tuning of the steel diagonal brace position.

Description

Technical Field

[0001] This invention belongs to the field of bridge construction, and in particular relates to a positioning bracket for the No. 0 block of the underchord steel diagonal brace of a hollow continuous rigid frame bridge. Background Technology

[0002] With the rapid development of my country's transportation industry, there are more and more river bridges and land bridges. Steel bracing can improve the stability and seismic resistance of structures. In the process of bridge construction, steel bracing is being chosen by more and more people, especially in long-span bridges where it has broad development prospects.

[0003] Currently, the steel bracing corresponding to block 0 is directly hoisted onto the concrete and directly connected and fixed to the bridge pier. This installation method has the following drawbacks: because the steel bracing is directly fixed to the bridge pier, the steel bracing cannot be accurately positioned, requiring workers to make repeated adjustments, increasing the time workers spend working at height, and also increasing the probability of safety accidents. Summary of the Invention

[0004] In view of this, the present invention aims to provide an installation and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge, so as to facilitate the positioning and installation of the steel diagonal brace.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A mounting and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge includes a bracket body, wherein the bracket body includes two support frames arranged opposite each other, and the two support frames are connected by several crossbeams.

[0007] The two support frames are opposite to each other and each has several fasteners protruding from the sides. The fasteners on the two support frames are symmetrical.

[0008] Furthermore, the support frame includes two first columns and two second columns. The lower middle and top parts of the two first columns are connected by connecting beams, and the two second columns are installed between the two connecting beams and each is close to one of the first columns.

[0009] Each support frame has two sets of fasteners symmetrically arranged on the left and right ends of the support frame. Each set includes at least three fasteners arranged sequentially from top to bottom. The uppermost and lowermost fasteners are installed on the connecting beam, and the remaining fasteners are installed on the support frame through the fixing beam connecting the second column and the corresponding first column.

[0010] The crossbeam connects the two support frames directly between the two first columns.

[0011] Furthermore, a second inclined support rod is provided between the bottom end of the first column and the connecting beam installed in its lower part.

[0012] Furthermore, two first diagonal support rods are provided between the two adjacent crossbeams at the bottom.

[0013] Furthermore, the two first inclined support rods are arranged in an inverted "V" shape.

[0014] Furthermore, the support body is assembled using I-beams.

[0015] Furthermore, the top of the bridge pier is provided with an embedded part, and the bracket is fixed to the embedded part.

[0016] Compared with existing technologies, the installation and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of the hollow continuous rigid frame bridge described in this invention has the following advantages:

[0017] The positioning bracket described in this invention makes positioning easier when installing steel diagonal braces, eliminating the need for jacks and reducing the time workers spend working at heights outside the structure, thus improving worker safety and reducing safety hazards. It also reduces the impact of tension on the structure when installing steel diagonal braces, and facilitates construction if fine adjustments to the position of the steel diagonal braces are required. Attached Figure Description

[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 This is a front view of the installation and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge as described in this embodiment.

[0020] Figure 2 This is a top view of the installation and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge as described in this embodiment;

[0021] Figure 3 This is a left view of the installation and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge as described in this embodiment.

[0022] Figure 4 This is a schematic diagram of the installation and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge as described in this embodiment.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Embedded part; 2-Support body; 21-Support frame; 22-Crossbeam; 23-First diagonal support rod; 24-Fixing part; 211-First column; 212-Second column; 213-Fixing beam; 214-Connecting beam; 215-Second diagonal support rod; 3-Steel diagonal brace; 4-Pier. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] A type of mounting and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge, such as... Figure 1 , Figure 2 and Figure 3 As shown, the support includes a support body 2, which is assembled from I-beams. The support body 2 includes two opposing support frames 21, which are connected by several crossbeams 22. The two support frames 21 are bolted to opposite sides and have several protruding fasteners 24. Each fastener 24 has mounting holes for installing steel diagonal braces. The fasteners 24 on the two support frames 21 are symmetrical, ensuring that the two steel diagonal braces supporting block 0 can be symmetrically positioned on both sides of the pier, providing stable support for block 0.

[0027] In this invention, the support frame 21 includes two first columns 211 and two second columns 212. The lower middle and top parts of the two first columns 211 are connected by connecting beams 214. The two second columns 212 are installed between the two connecting beams 214 and each is close to one of the first columns 211. A crossbeam 22 connects the two support frames 21 directly between the two first columns 211. To improve the support stability of the support body, a second diagonal support rod 215 is provided between the bottom end of the first column 211 and the connecting beam 214 installed in its lower middle part; two first diagonal support rods 23 are provided between the two adjacent crossbeams 22 at the bottom, and the two first diagonal support rods 23 are arranged in an inverted "V" structure. The top ends of the two first diagonal support rods 23 are installed in the middle position of the corresponding crossbeam 22, and their bottom ends are installed at the connection position between the corresponding crossbeam 22 and the first column 211. At this time, the two first diagonal support rods 23 form a triangular support structure, which improves the support strength of the support body 2 and ensures the support stability of the steel diagonal bracing after it is installed.

[0028] Each support frame 21 has two sets of fasteners 24, symmetrically arranged on the left and right ends of the support frame 21. Each set includes at least three fasteners 24 arranged sequentially from top to bottom. The uppermost and lowermost fasteners 24 are respectively installed on the connecting beam 214, and the remaining fasteners 24 are installed on the support frame 21 through the fixing beam 213 connecting the second column 212 and the corresponding first column 211.

[0029] The construction process of this invention is as follows: First, a pre-embedded part 1 is installed on the top of the pier 4. Then, the support body 2 described in this invention is installed on the pre-embedded part 1. Then, two steel diagonal braces 3 are respectively bolted to the fixing parts 24 on both sides of the support body 2 to achieve the positioning and installation of the steel diagonal braces 3. Figure 4 As shown.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mounting and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge, characterized in that: Includes a support body (2), which includes two support frames (21) facing each other, and the two support frames (21) are connected by several crossbeams (22); The two support frames (21) are opposite to each other and have several fasteners (24) protruding from their sides. The fasteners (24) on the two support frames (21) are symmetrical. Two steel diagonal braces (3) are respectively bolted to the fasteners (24) on both sides of the bracket body (2); The support frame (21) includes two first columns (211) and two second columns (212). The lower middle and top parts of the two first columns (211) are connected by connecting beams (214). The two second columns (212) are installed between the two connecting beams (214) and each is close to one of the first columns (211). Each support frame (21) has two sets of fasteners (24) arranged symmetrically on the left and right ends of the support frame (21). Each set includes at least three fasteners (24) arranged sequentially from top to bottom. The uppermost and lowermost fasteners (24) are installed on the connecting beam (214) respectively. The remaining fasteners (24) are installed on the support frame (21) through the fixing beam (213) connecting the second column (212) and the corresponding first column (211). The crossbeam (22) is connected between the two support frames (21) and directly between the two first columns (211); A second inclined support rod (215) is provided between the bottom end of the first column (211) and the connecting beam (214) installed in its lower part; Two first diagonal support rods (23) are provided between the two adjacent crossbeams (22) at the bottom.

2. The mounting and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge according to claim 1, characterized in that: The two first inclined support rods (23) are arranged in an inverted "V" structure.

3. The mounting and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of a hollow continuous rigid frame bridge according to claim 1, characterized in that: The support body (2) is assembled using I-beams.

Images