CN210561740U - Steel arch rib structure - Google Patents

Abstract

The utility model discloses a steel arch rib structure, which relates to the field of constructional engineering, and the key point of the technical proposal is that the steel arch structure comprises a plurality of sections of unit steel arches, wherein each unit steel arch comprises two layers of arc pipes which are arranged in the vertical direction and a connecting plate which is used for connecting the upper layer of arc pipe and the lower layer of arc pipe, and each unit steel arch comprises a splicing component which is connected at one end of two adjacent unit steel arches which are close to each other; the splicing assembly comprises a first splicing block connected to one unit steel arch and a second splicing block connected to the other unit steel arch; the first splicing block is provided with a groove, and the second splicing block is fixed with a lug which can be inserted into the groove. This practicality has the convenience when hoist and mount concatenation encircles the steel and aligns, reduces the steel and encircles the effect of the installation degree of difficulty.

Description

Steel arch rib structure

Technical Field

The utility model relates to a building engineering field, more specifically the utility model relates to a steel arch rib structure that says so.

Background

Among the bridge types, one is a steel arch bridge, which has the advantages of large span, usually over 60 meters, steel saving under the same span, good durability, maintenance and repair cost saving, and particularly beautiful bridge shape, and can be made into various shapes, thereby becoming a local landscape. The steel arch bridge construction method is a suspension assembly method, steel arches are in multiple sections, the steel arches are mostly welded, the steel arch is hoisted and placed on a temporary support in the installation process, the steel arch is supported through the temporary support, then joints of the steel arch are welded, and the steel arch is installed. However, the steel arch is heavy in weight, and in the hoisting process, the joints of the steel arch are not easy to align, so that the welding difficulty of the steel arch is increased, and the installation difficulty of the steel arch is increased.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a steel arch rib structure can conveniently encircle the steel and align when hoist and mount concatenation, reduces the installation degree of difficulty that the steel encircleed.

In order to achieve the above purpose, the utility model provides a following technical scheme: a steel arch rib structure comprises a plurality of sections of unit steel arches, wherein each unit steel arch comprises two layers of arc pipes arranged in the vertical direction and a connecting plate for connecting the upper layer of arc pipes and the lower layer of arc pipes, and each unit steel arch comprises a splicing assembly connected to one end, close to each other, of each two adjacent unit steel arches; the splicing assembly comprises a first splicing block connected to one unit steel arch and a second splicing block connected to the other unit steel arch; the first splicing block is provided with a groove, and the second splicing block is fixed with a lug which can be inserted into the groove.

Through adopting above-mentioned technical scheme, first splice (or second splice) insert in the second splice (or first splice) of another unit steel arch, accomplish the concatenation to unit concatenation subassembly, insert the recess through the lug in, connect the connector that two adjacent unit steel arch, conveniently align the joint that unit steel arch, reduce the installation degree of difficulty that the steel arch was encircleed.

The utility model discloses further set up to: the first splicing block and the second splicing block are detachably connected with the unit steel arch.

By adopting the technical scheme, the first splicing block and the second splicing block are detachably connected, and the first splicing block and the second splicing block are installed on the unit steel arch before the unit steel arch is installed, so that the unit steel arch can be conveniently spliced; when the unit steel arch is spliced and welded, the unit steel arch is disassembled, so that the welding of the unit steel arch is not influenced, and the integral attractiveness after the installation is kept is maintained.

The utility model discloses further set up to: the first splicing block is formed by splicing two identical first unit blocks, and the second splicing block is formed by splicing two identical second unit blocks; and the bottom ends of the first splicing block and the second splicing block are fixedly provided with connecting blocks for connecting two adjacent first unit blocks or second unit blocks.

By adopting the technical scheme, the splicing blocks are formed by splicing two same unit blocks, so that the splicing blocks are convenient to splice, and the splicing blocks are convenient to install and disassemble.

The utility model discloses further set up to: and reinforcing ribs are fixed on the inner wall of the arc-shaped pipe.

Through adopting above-mentioned technical scheme, the intensity of arc pipe can be strengthened to the strengthening rib for the arc pipe can keep mechanical strength, increases the stability that unit steel encircles.

The utility model discloses further set up to: and a fixing piece matched with the temporary support is fixed on the unit steel arch.

Through adopting above-mentioned technical scheme, mounting and temporary support cooperation increase the stability that the temporary support was placed to the unit steel arch to increase steel arch welded stability.

The utility model discloses further set up to: the fixing piece comprises a plug board detachably connected to the bottom end of the unit steel arch and a bolt penetrating through the plug board and in threaded connection with the unit steel arch.

Through adopting above-mentioned technical scheme, pegging graft board and unit steel are encircleed and are connected dismantled for the unit steel is encircleed and can be dismantled the pegging graft board after the welding is accomplished, and the whole that increases the steel after the welding is accomplished is encircleed beautifully.

The utility model discloses further set up to: and both sides of the insertion plate are provided with strip holes into which common bolts are inserted.

Through adopting above-mentioned technical scheme, the rectangular hole is convenient for the inserting of bolt, and when the mounting hole of bolt was a plurality of, the bolt on mounting hole and the unit steel arch can produce the dislocation because of machining error, and the rectangular hole can compensate this error to make things convenient for the inserting of bolt.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the first splicing block (or the second splicing block) is inserted into the second splicing block (or the first splicing block) of another unit steel arch to complete splicing of the unit splicing assemblies, and the convex block is inserted into the groove to connect the connectors of two adjacent unit steel arches, so that the connectors of the unit steel arches can be aligned conveniently, and the mounting difficulty of the steel arches is reduced;

2. the first splicing block and the second splicing block are detachably connected, and the first splicing block and the second splicing block are installed on the unit steel arch before the unit steel arch is installed, so that the unit steel arch is conveniently spliced; the unit steel arch is disassembled when being spliced and welded, so that the welding of the unit steel arch is not influenced, and the integral attractiveness after the installation is kept;

3. the mounting cooperates with temporary support, increases the stability that the temporary support was placed to the unit steel arch to increase steel arch welded stability.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic representation showing a unit steel arch cross-section;

FIG. 3 is a schematic structural view showing a splice assembly;

FIG. 4 is a schematic view showing a fastener;

fig. 5 is a schematic view embodying a temporary stent.

In the figure: 1. a unit steel arch; 11. an arc tube; 12. a connecting plate; 13. reinforcing ribs; 2. splicing the components; 21. a first splice block; 211. a first unit block; 212. a groove; 22. a second splice block; 221. a second unit block; 222. a bump; 23. connecting blocks; 3. a fixing member; 31. a plugboard; 311. a strip hole; 32. a bolt; 4. a temporary support; 41. and (4) a slot.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a steel arch rib structure, see fig. 1, includes a unit steel arch 1, a splice assembly 2 connected to the unit steel arch 1, and a fixing member 3 connected to the unit steel arch 1. Splicing assembly 2 divides into two parts, connects respectively on two adjacent unit steel arch 1 one end that is close to each other, and after splicing assembly 2's two parts cooperation, two adjacent unit steel arch 1's joint butt each other, the welding process in the later stage of being convenient for.

Referring to fig. 1 and 2, the unit steel arch 1 is composed of two layers of arc pipes 11 placed in a vertical direction and a connection plate 12 connecting the upper and lower layers of arc pipes 11. And the inner wall of the arc-shaped pipe 11 is fixed with a reinforcing rib 13, and the reinforcing rib 13 is used for reinforcing the strength of the arc-shaped pipe 11.

Referring to fig. 3, the splicing assembly 2 includes a first splicing block 21, a second splicing block 22, and a connecting block 23 fixed to the bottom ends of the first splicing block 21 and the second splicing block 22. The first splicing block 21 is formed by splicing two identical first unit blocks 211, and the second splicing block 22 is formed by splicing two identical second unit blocks 221; the connecting block 23 connects two adjacent first unit blocks 211 or second unit blocks 221 (the connecting mode is bolt and nut), and the two adjacent first unit blocks 211 or second unit blocks 221 are combined into a first splicing block 21 or a second splicing block 22. The first splicing block 21 is provided with a groove 212, and the second splicing block 22 is fixed with a projection 222 which can be inserted into the groove 212. An empty groove for placing the common arc-shaped pipe 11 is formed between the first splicing block 21 and the second splicing block 22. The first splicing block 21 and the second splicing block 22 are respectively connected to one end of each of two adjacent unit steel arches 1, which are close to each other, and are arranged on the arc-shaped pipe 11 on the upper layer or the arc-shaped pipe 11 on the lower layer.

Referring to fig. 4 and 5, the fixing member 3 includes a socket plate 31 detachably coupled to the bottom end of the unit steel arch 1 and a bolt 32 penetrating the socket plate 31 and threadedly coupled with the unit steel arch 1. The arc standing groove that supplies the arc pipe 11 to place is seted up at the top of plugboard 31, and rectangular hole 311 has been seted up to the both sides of plugboard 31, and rectangular hole 311 makes things convenient for inserting of bolt 32.

The bottom of unit steel arch 1 is provided with temporary support 4 that supports unit steel arch 1, and temporary support 4's top is fixed with slot 41, and slot 41 supplies plugboard 31 to insert, increases the stability that unit steel arch 1 placed on temporary support 4.

The using method comprises the following steps: and (3) hoisting and pulling the unit steel arch 1 by using a hoisting machine, installing the splicing assemblies 2 at two ends of the unit steel arch 1 before hoisting and pulling, and installing the fixing pieces 3 according to the construction condition. The unit steel arch 1 is hung on the temporary stand 4 and the inserting plate 31 is inserted into the inserting groove 41. The first splicing block 21 (or the second splicing block 22) is inserted into the second splicing block 22 (or the first splicing block 21) of another unit steel arch 1, and splicing of the unit steel arch 1 is completed. And after splicing is completed, welding the unit steel arch 1 which is not in contact with the splicing component 2, taking down the splicing component 2 after welding is completed, and welding the rest part, thereby completing the connection of the multiple sections of unit steel arches 1.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a steel arch rib structure, includes that multisection unit steel encircles (1), unit steel encircles (1) and includes two-layer arc pipe (11) that vertical direction placed and connects connecting plate (12) of two-layer arc pipe (11) about connecting, its characterized in that: the unit steel arches (1) comprise splicing assemblies (2) connected to one ends, close to each other, of two adjacent unit steel arches (1); the splicing assembly (2) comprises a first splicing block (21) connected to one unit steel arch (1) and a second splicing block (22) connected to the other unit steel arch (1); a groove (212) is formed in the first splicing block (21), and a convex block (222) capable of being inserted into the groove (212) is fixed on the second splicing block (22).

2. A steel rib structure according to claim 1, wherein: the first splicing block (21) and the second splicing block (22) are detachably connected with the unit steel arch (1).

3. A steel rib structure according to claim 2, wherein: the first splicing block (21) is formed by splicing two identical first unit blocks (211), and the second splicing block (22) is formed by splicing two identical second unit blocks (221); and the bottom ends of the first splicing block (21) and the second splicing block (22) are fixedly provided with connecting blocks (23) for connecting two adjacent first unit blocks (211) or second unit blocks (221).

4. A steel rib structure according to claim 1, wherein: and a reinforcing rib (13) is fixed on the inner wall of the arc-shaped pipe (11).

5. A steel rib structure according to claim 1, wherein: and a fixing piece (3) matched with the temporary support (4) is fixed on the unit steel arch (1).

6. A steel arch rib structure according to claim 5, wherein: the fixing piece (3) comprises a plug board (31) detachably connected to the bottom end of the unit steel arch (1) and a bolt (32) penetrating through the plug board (31) and in threaded connection with the unit steel arch (1).

7. A steel arch rib structure according to claim 6, wherein: and both sides of the inserting plate (31) are provided with strip holes (311) into which the common bolts (32) are inserted.

Images