CN117418474A - No. 0 block installation positioning bracket for lower chord steel diagonal bracing of hollow continuous rigid frame bridge - Google Patents
No. 0 block installation positioning bracket for lower chord steel diagonal bracing of hollow continuous rigid frame bridge Download PDFInfo
- Publication number
- CN117418474A CN117418474A CN202311661559.4A CN202311661559A CN117418474A CN 117418474 A CN117418474 A CN 117418474A CN 202311661559 A CN202311661559 A CN 202311661559A CN 117418474 A CN117418474 A CN 117418474A
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- CN
- China
- Prior art keywords
- lower chord
- steel diagonal
- positioning bracket
- rigid frame
- continuous rigid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 45
- 239000010959 steel Substances 0.000 title claims abstract description 45
- 238000009434 installation Methods 0.000 title description 5
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a mounting and positioning bracket for a No. 0 steel diagonal brace of a lower chord steel of a hollow continuous rigid frame bridge, which comprises a bracket body, wherein the bracket body comprises two supporting frames which are arranged in a right-opposite way, and the two supporting frames are connected through a plurality of cross beams; the two supporting frames are opposite to each other and are protruded from the side surfaces respectively and provided with a plurality of fixing pieces, and the fixing pieces on the two supporting frames are symmetrical. The positioning bracket is easier to position when the steel diagonal brace is installed, a jack is not used any more, the working time of workers at the outside of the structure is shortened, the workers are safer, the potential safety hazard is reduced, the influence of pulling force on the structure is reduced when the steel diagonal brace is installed, and if the position of the steel diagonal brace is required to be finely adjusted, the construction is convenient and fast.
Description
Technical Field
The invention belongs to the field of bridge construction, and particularly relates to a mounting and positioning bracket for a No. 0 steel diagonal bracing of a lower chord of a hollow continuous rigid frame bridge.
Background
With the rapid development of the transportation industry in China, more and more river bridges and land bridges are provided, the steel diagonal bracing can improve the stability and the shock resistance of the structure, and the steel structure diagonal bracing is selected by more people in the bridge construction process, so that the steel structure diagonal bracing has a wide development prospect in the large-span bridge.
At present, the steel diagonal bracing corresponding to the No. 0 block is installed on concrete to be directly hoisted and directly connected with the pier for fixing, and the installation mode has the following defects that the steel diagonal bracing and the pier are directly fixed, so that the steel diagonal bracing cannot be accurately positioned, an operation worker is required to repeatedly adjust, the overhead operation time of the worker is increased, and the probability of occurrence of safety accidents is also increased.
Disclosure of Invention
In view of the above, the invention aims to provide a mounting and positioning bracket for a No. 0 steel diagonal of a lower chord of a hollow continuous rigid frame bridge, so as to facilitate the positioning and mounting of the steel diagonal.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the mounting and positioning bracket comprises a bracket body, wherein the bracket body comprises two supporting frames which are arranged in a right-opposite way, and the two supporting frames are connected through a plurality of cross beams;
the two supporting frames are opposite to each other and are protruded from the side surfaces respectively and provided with a plurality of fixing pieces, and the fixing pieces on the two supporting frames are symmetrical.
Further, the supporting frame comprises two first upright posts and two second upright posts, the middle lower parts and the tops of the two first upright posts are respectively connected through connecting beams, and the two second upright posts are arranged between the two connecting beams and are respectively close to one first upright post;
the fixing pieces on each supporting frame are provided with two groups which are symmetrically arranged at the left end and the right end of the supporting frame, each group comprises at least three fixing pieces which are sequentially arranged from top to bottom, wherein the fixing pieces at the uppermost position and the lowermost position are respectively arranged on the connecting beams, and the rest fixing pieces are arranged on the supporting frame through the fixing beams connected between the second upright posts and the corresponding first upright posts;
the cross beam is connected between the two supporting frames and opposite to the two first upright posts.
Further, a second diagonal bracing rod is arranged between the bottom end of the first upright post and the connecting beam arranged at the lower part of the first upright post.
Further, two first diagonal support rods are arranged between two adjacent cross beams at the lowest part.
Further, the two first diagonal support bars are arranged in an inverted V-shaped structure.
Furthermore, the bracket body is assembled by adopting I-steel.
Further, an embedded part is arranged at the top of the pier, and the support is fixed to the embedded part.
Compared with the prior art, the mounting and positioning bracket for the No. 0 block of the lower chord steel diagonal brace of the open-web continuous rigid frame bridge has the following advantages:
the positioning bracket is easier to position when the steel diagonal brace is installed, a jack is not used any more, the working time of workers at the outside of the structure is shortened, the workers are safer, the potential safety hazard is reduced, the influence of pulling force on the structure is reduced when the steel diagonal brace is installed, and if the position of the steel diagonal brace is required to be finely adjusted, the construction is convenient and fast.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a front view of a mounting and positioning bracket for a lower chord steel diagonal brace number 0 of a hollow continuous rigid frame bridge according to the embodiment;
FIG. 2 is a top view of a mounting and positioning bracket for a No. 0 steel diagonal brace of a lower chord steel of a hollow continuous rigid frame bridge according to the embodiment;
FIG. 3 is a left side view of a mounting and positioning bracket for a No. 0 steel diagonal brace of a lower chord steel of a hollow continuous rigid frame bridge according to the embodiment;
fig. 4 is a schematic diagram of a lower chord steel diagonal brace installed on a No. 0 block installation positioning bracket of a lower chord steel diagonal brace of a hollow continuous rigid frame bridge according to the embodiment.
Reference numerals illustrate:
1-an embedded part; 2-a bracket body; 21-a support frame; 22-a cross beam; 23-a first diagonal strut; 24-fixing piece; 211-a first upright; 212-a second upright; 213-fixed beams; 214-connecting beams; 215-a second diagonal strut; 3-steel diagonal bracing; 4-pier.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments.
The mounting and positioning bracket for the No. 0 steel diagonal bracing of the lower chord of the hollow continuous rigid frame bridge comprises a bracket body 2 as shown in fig. 1, 2 and 3, wherein the bracket body 2 is formed by splicing I-steel, the bracket body 2 comprises two supporting frames 21 which are arranged oppositely, and the two supporting frames 21 are connected through a plurality of cross beams 22. The two supporting frames 21 are respectively bolted and protruded from the opposite side surfaces, a plurality of fixing pieces 24 are arranged, the fixing pieces 24 are provided with a plurality of mounting holes for mounting the steel diagonal braces, the fixing pieces 24 on the two supporting frames 21 are symmetrical, the two steel diagonal braces for supporting the No. 0 block are ensured to be symmetrically arranged on two sides of the bridge pier, and the two steel diagonal braces can stably support the No. 0 block.
In the present invention, the supporting frame 21 includes two first upright posts 211 and two second upright posts 212, the middle lower parts and the top parts of the two first upright posts 211 are respectively connected through connecting beams 214, the two second upright posts 212 are installed between the two connecting beams 214 and are respectively close to one first upright post 211, and the cross beam 22 is connected between the two supporting frames 21 and is opposite to the two first upright posts 211. In order to improve the support stability of the support body, a second diagonal bracing bar 215 is arranged between the bottom end of the first upright post 211 and a connecting beam 214 arranged at the lower part of the first upright post; two first diagonal bracing rods 23 are arranged between two adjacent cross beams 22 at the lowest part, the two first diagonal bracing rods 23 are arranged in an inverted V-shaped structure, the top ends of the two first diagonal bracing rods 23 are arranged at the middle positions of the corresponding cross beams 22, the bottom ends of the two first diagonal bracing rods are arranged at the connecting positions of the corresponding cross beams 22 and the first upright post 211, at the moment, the two first diagonal bracing rods 23 form a triangular supporting structure, the supporting strength of the bracket body 2 is improved, and the supporting stability of the bracket body to the steel diagonal bracing after the steel diagonal bracing is arranged is guaranteed.
The fixing members 24 on each supporting frame 21 are provided with two groups of symmetrically arranged at the left and right ends of the supporting frame 21, each group comprises at least three fixing members 24 sequentially arranged from top to bottom, wherein the fixing members 24 at the uppermost and lowermost positions are respectively arranged on the connecting beams 214, and the rest of the fixing members 24 are arranged on the supporting frame 21 through the fixing beams 213 connected between the second upright posts 212 and the corresponding first upright posts 211.
The construction process of the invention is that firstly, an embedded part 1 is arranged at the top of a pier 4, then the bracket body 2 is arranged on the embedded part 1, and then two steel diagonal braces 3 are respectively bolted on fixing parts 24 at two sides of the bracket body 2, so that the positioning and the installation of the steel diagonal braces 3 are realized, as shown in figure 4.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. A web-type continuous rigid frame bridge lower chord steel diagonal bracing No. 0 block mounting positioning bracket is characterized in that: the support comprises a support body (2), wherein the support body (2) comprises two supporting frames (21) which are arranged opposite to each other, and the two supporting frames (21) are connected through a plurality of cross beams (22);
the opposite side surfaces of the two support frames (21) are respectively provided with a plurality of fixing pieces (24) in a protruding mode, and the fixing pieces (24) on the two support frames (21) are symmetrical.
2. The installing and positioning bracket for the lower chord steel diagonal brace number 0 of the open web continuous rigid frame bridge according to claim 1, which is characterized in that: the supporting frame (21) comprises two first upright posts (211) and two second upright posts (212), wherein the middle lower parts and the tops of the two first upright posts (211) are respectively connected through connecting beams (214), and the two second upright posts (212) are arranged between the two connecting beams (214) and are respectively close to one first upright post (211);
the fixing pieces (24) on each supporting frame (21) are provided with two groups which are symmetrically arranged at the left end and the right end of the supporting frame (21), each group comprises at least three fixing pieces (24) which are sequentially arranged from top to bottom, wherein the fixing pieces (24) at the uppermost position and the lowermost position are respectively arranged on the connecting beams (214), and the rest fixing pieces (24) are arranged on the supporting frame (21) through fixing beams (213) connected between the second upright posts (212) and the corresponding first upright posts (211);
the cross beam (22) is connected between the two supporting frames (21) and is opposite to the two first upright posts (211).
3. The installing and positioning bracket for the lower chord steel diagonal brace number 0 of the open web continuous rigid frame bridge according to claim 2, which is characterized in that: a second diagonal support rod (215) is arranged between the bottom end of the first upright post (211) and a connecting beam (214) arranged at the lower part of the first upright post.
4. The installing and positioning bracket for the lower chord steel diagonal brace number 0 of the open web continuous rigid frame bridge according to claim 1, which is characterized in that: two first diagonal support rods (23) are arranged between two adjacent cross beams (22) at the lowest part.
5. The installing and positioning bracket for the lower chord steel diagonal brace number 0 of the open-web continuous rigid frame bridge according to claim 4, which is characterized in that: the two first diagonal support rods (23) are arranged in an inverted V-shaped structure.
6. The installing and positioning bracket for the lower chord steel diagonal brace number 0 of the open web continuous rigid frame bridge according to claim 1, which is characterized in that: the bracket body (2) is assembled by adopting I-steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311661559.4A CN117418474A (en) | 2023-12-06 | 2023-12-06 | No. 0 block installation positioning bracket for lower chord steel diagonal bracing of hollow continuous rigid frame bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311661559.4A CN117418474A (en) | 2023-12-06 | 2023-12-06 | No. 0 block installation positioning bracket for lower chord steel diagonal bracing of hollow continuous rigid frame bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117418474A true CN117418474A (en) | 2024-01-19 |
Family
ID=89526858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311661559.4A Pending CN117418474A (en) | 2023-12-06 | 2023-12-06 | No. 0 block installation positioning bracket for lower chord steel diagonal bracing of hollow continuous rigid frame bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117418474A (en) |
-
2023
- 2023-12-06 CN CN202311661559.4A patent/CN117418474A/en active Pending
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