CN205116030U - No. 0 three angle brackets of piece of box girder bridge have just been constructed in succession - Google Patents

Abstract

The triangular bracket of block 0 of the continuous rigid frame box girder bridge is fixed on the pier body, and the box girder is installed and fixed on the pier body; the triangular bracket of block 0 of the continuous rigid frame box girder bridge includes the outer structure, the outer triangular bracket is fixed on the pier body, the inner triangular bracket is fixed in the outer triangular bracket, the outer triangular bracket, the inner triangular bracket, and the pier body are connected by a fixed connection structure; the first fine-rolled threaded steel bar, the second fine-rolled Cotton yarn is filled in the connection hole where the rolled threaded steel bar is fixed to the pier body. The triangular bracket of the utility model can effectively replace the construction methods such as the traditional floor support method and the steel pipe column method, which not only saves expenses, but also achieves the same effect, saves time and speeds up the construction progress.

Description

Triangular Bracket of Block 0 of Continuous Rigid Frame Box Girder Bridge

technical field

The utility model continuous steel box girder bridge No. 0 block triangular bracket is suitable for the construction of 0# block and cast-in-place section of cantilever pouring girder bridges on railways and highways, especially in mountainous and hilly areas, high piers, water operations or steep terrain It has wide applicability under conditions such as weak ground and weak ground.

Background technique

At present, the traditional construction methods of No. 0 block section include floor support method and steel pipe column method. Construction in mountainous and hilly areas presents greater safety risks. At the same time, due to the high pier body, the elastic deformation of the floor support is large, which is not enough to ensure the quality of concrete pouring for the side span cast-in-place section. The steel pipe column method also has construction problems such as difficult foundation handling and mechanical installation operations. Due to the instability of the mountain, there are also greater safety risks during construction. Both traditional construction methods have great safety risks in mountainous and hilly areas. At the same time, the workload is heavy and the operation is difficult. From the perspective of project progress and economy, they are not suitable for the construction of 0# block cast-in-place section in mountainous and hilly areas.

Contents of the invention

In order to overcome the above-mentioned problems, the utility model proposes a form of conveniently installing a triangular bracket connected to the Bailey beam as a support platform for construction of the No. 0 block of the continuous rigid box girder bridge, which effectively solves the above-mentioned problems, and can also ensure the construction quality. Save costs, shorten construction time, and speed up construction progress.

The technical scheme that the utility model bracket solves its technical problem adopts is:

The pier body is equipped with triangular brackets through pre-embedded components, and the triangular brackets are connected to Bailey beams as support platform construction, supporting the bottom basket system of the hanging basket and the flange plate truss. For the special part of the pier body flange plate position and structure size, the shaped steel mold is used, the inner roof formwork support is steel pipe support, and the concrete is cast in one time.

The triangular bracket 1 of block 0 of the continuous rigid frame box girder bridge is fixed on the pier body 3, and the box girder 2 is installed and fixed on the pier body 3; the triangular bracket 1 of block 0 of the continuous rigid frame box girder bridge includes the outer triangular bracket, The inner triangular bracket and the fixed connection structure, the outer triangular bracket is fixed on the pier body 3, the inner triangular bracket is fixed in the outer triangular bracket, the outer triangular bracket, the inner triangular bracket, and the pier body 3 are connected through a fixed connection structure;

Described outer triangular bracket comprises outer vertical bar 7, outer horizontal bar 8, outer slanting strut 9; Described inner triangular bracket includes inner vertical bar 11, inner slanting strut 12, inner horizontal bar 13; fixedly connected The structure includes a first connection node 4, a first finish-rolled rebar 5, a first distribution beam 6, a second connection node 10, a third connection node 14, a second distribution beam 15, a third distribution beam 16, a second finish-rolled Rebar 17, square wood 18;

The outer vertical bar 7, the outer horizontal bar 8, and the outer slanting strut 9 are mutually connected and fixed to form a first right-angled triangle. The outer vertical bar 7 and the outer horizontal bar 8 are fixed through the first connecting node 4, and the two ends of the outer slanting strut 9 Respectively by the second connection node 10, the third connection node 14 and the outer horizontal bar 8, the outer vertical bar 7 are fixed, the upper and lower ends of the right-angled side of the first right-angled triangle pass through the first finish-rolled threaded steel bar 5, the second finish-rolled The threaded steel bar 17 is fixed to the pier body 3;

The inner vertical bar 11, the inner slanting strut 12, and the inner horizontal bar 13 are connected and fixed to form a second right triangle; the second right triangle is installed in the first right triangle, and the inner slanting strut 12 of the second right triangle and The outer slanting struts 9 are parallel; the inner vertical bar 11 is connected with the outer horizontal bar 8 and the outer slanting strut 9; the inner horizontal bar 13 is connected with the outer vertical bar 7 and the outer slanting strut 9; the inner slanting strut 12 is connected with Outer vertical bar 7, outer horizontal bar 8 are connected;

The bottom of the outer vertical bar 7 is fixed on the square timber 18 by the third distribution beam 16;

The end of the first finish-rolled rebar 5 passes through the outer vertical bar 7 and is fixed by the first distribution beam 6; the end of the second finish-rolled rebar 17 passes through the square log 18 and is fixed by the second distribution beam 15;

Cotton yarn 19 is filled in the connection hole 20 where the first finish-rolled threaded steel bar 5 and the second finished-rolled threaded steel bar 17 are fixed to the pier body 3 .

The beneficial effects of the utility model are:

1. The triangular bracket of the present invention has simple materials and is easy to process. It only needs channel steel, I-beam, etc., which can be obtained on site, and the processing methods are only riveting and welding;

2. The triangular bracket of the utility model is connected to the Bailey beam as the bracket platform. On the one hand, high-strength materials are fully utilized to ensure the quality of the project; on the other hand, the difficulty of construction is reduced. While the I-beam bears the relatively small load of the flange plate in the form of an outrigger beam, it partially offsets the positive bending moment in the main span.

3. Compared with the floor support and steel pipe column system, the triangular bracket of the present utility model greatly reduces the cost input, and only some simple material costs and labor costs are invested.

4. The triangular bracket of the present utility model installs the triangular bracket through pre-embedded components, cancels the bracket, and solves the construction problems of high piers and water operations.

5. The triangular bracket of the present invention has simple installation and removal procedures, and the removed materials can be reused.

6. The triangular bracket of the utility model has no pollution to the environment, water and soil, plays the role of energy saving and emission reduction, cancels the process of foundation treatment and erecting floor support, has good economic benefits and shortens the construction period.

Therefore, the triangular bracket of the utility model can effectively replace the construction methods such as the traditional floor support method and the steel pipe column method, which not only saves expenses, but also achieves the same effect, saves time and speeds up the construction progress.

Description of drawings

Figure 1 is a schematic diagram of the front structure of the triangular bracket.

Fig. 2 is a schematic diagram of the side structure of the triangular bracket.

Fig. 3 is a schematic diagram of the structure of the triangular bracket.

Fig. 4 is a schematic diagram of the connection structure between the finish-rolled threaded steel bar and the fixed part of the pier body.

In the figure: 1. The triangular bracket of No. 0 block of the continuous rigid frame box girder bridge, 2. The box girder, 3. The pier body, 4. The first connection node, 5. The first finish-rolled threaded steel bar, 6. The first distribution beam , 7, the outer vertical bar, 8, the outer horizontal bar, 9, the outer diagonal strut, 10, the second connecting node, 11, the inner vertical bar, 12, the inner diagonal strut, 13, the inner horizontal bar, 14, The third connection node, 15, the second distribution beam, 16, the third distribution beam, 17, the second finish-rolled threaded steel bar, 18, square wood, 19, cotton yarn, 20, connection hole.

detailed description

As shown in Figure 1-4, the installation of pre-embedded steel plates for the pier body of the triangular bracket construction, the piercing of fine-rolled rebar with reserved holes, and the installation of distribution beams. Bracket preloading No. 0 block construction. The structural size of the bracket is determined by the calculation of Midascivil software, which meets the force requirements.

The triangular bracket 1 of block 0 of the continuous rigid frame box girder bridge is fixed on the pier body 3, and the box girder 2 is installed and fixed on the pier body 3; the triangular bracket 1 of block 0 of the continuous rigid frame box girder bridge includes the outer triangular bracket, The inner triangular bracket and the fixed connection structure, the outer triangular bracket is fixed on the pier body 3, the inner triangular bracket is fixed in the outer triangular bracket, the outer triangular bracket, the inner triangular bracket, and the pier body 3 are connected through a fixed connection structure;

Described outer triangular bracket comprises outer vertical bar 7, outer horizontal bar 8, outer slanting strut 9; Described inner triangular bracket includes inner vertical bar 11, inner slanting strut 12, inner horizontal bar 13; fixedly connected The structure includes a first connection node 4, a first finish-rolled rebar 5, a first distribution beam 6, a second connection node 10, a third connection node 14, a second distribution beam 15, a third distribution beam 16, a second finish-rolled Rebar 17, square wood 18;

The outer vertical bar 7, the outer horizontal bar 8, and the outer slanting strut 9 are mutually connected and fixed to form a first right-angled triangle. The outer vertical bar 7 and the outer horizontal bar 8 are fixed through the first connecting node 4, and the two ends of the outer slanting strut 9 Respectively by the second connection node 10, the third connection node 14 and the outer horizontal bar 8, the outer vertical bar 7 are fixed, the upper and lower ends of the right-angled side of the first right-angled triangle pass through the first finish-rolled threaded steel bar 5, the second finish-rolled The threaded steel bar 17 is fixed to the pier body 3;

The inner vertical bar 11, the inner slanting strut 12, and the inner horizontal bar 13 are connected and fixed to form a second right triangle; the second right triangle is installed in the first right triangle, and the inner slanting strut 12 of the second right triangle and The outer slanting struts 9 are parallel; the inner vertical bar 11 is connected with the outer horizontal bar 8 and the outer slanting strut 9; the inner horizontal bar 13 is connected with the outer vertical bar 7 and the outer slanting strut 9; the inner slanting strut 12 is connected with Outer vertical bar 7, outer horizontal bar 8 are connected;

The bottom of the outer vertical bar 7 is fixed on the square timber 18 by the third distribution beam 16;

The end of the first finish-rolled rebar 5 passes through the outer vertical bar 7 and is fixed by the first distribution beam 6; the end of the second finish-rolled rebar 17 passes through the square log 18 and is fixed by the second distribution beam 15;

Cotton yarn 19 is filled in the connection hole 20 where the first finish-rolled threaded steel bar 5 and the second finished-rolled threaded steel bar 17 are fixed to the pier body 3 .

Therefore, the triangular bracket of the utility model can effectively replace the construction methods such as the traditional floor support method and the steel pipe column method, which not only saves expenses, but also achieves the same effect, saves time and speeds up the construction progress.

Claims (2)

1. The triangular bracket of No. 0 block of the continuous rigid box girder bridge is characterized in that the triangular bracket (1) of the No. 0 block of the continuous rigid frame box girder bridge is fixed on the pier body (3), and the box girder (2) is installed and fixed On the pier body (3); the triangular bracket (1) of Block 0 of the continuous rigid frame box girder bridge includes an outer triangular bracket, an inner triangular bracket, and a fixed connection structure, and the outer triangular bracket is fixed on the pier body (3) , the inner triangular bracket is fixed in the outer triangular bracket, and the outer triangular bracket, the inner triangular bracket, and the pier body (3) are connected through a fixed connection structure; Described outer triangular bracket comprises outer vertical bar (7), outer horizontal bar (8), outer slanting strut (9); described inner triangular bracket comprises inner vertical bar (11), inner slanting strut ( 12), the inner horizontal bar (13); the fixed connection structure includes the first connection node (4), the first finish-rolled threaded steel bar (5), the first distribution beam (6), the second connection node (10), the third Connection node (14), second distribution beam (15), third distribution beam (16), second finish-rolled threaded steel bar (17), square timber (18); The outer vertical bar (7), the outer horizontal bar (8), and the outer diagonal brace (9) are connected and fixed to each other to form a first right triangle, and the outer vertical bar (7) and the outer horizontal bar (8) pass through the first connecting node (4) Fixing, the two ends of the outer diagonal brace (9) are respectively fixed by the second connecting node (10), the third connecting node (14) and the outer horizontal bar (8) and the outer vertical bar (7). The upper and lower ends of the right-angle side of the right-angled triangle are fixed to the pier body (3) by the first finish-rolled threaded steel bar (5), the second finished-rolled threaded steel bar (17); Inner vertical bar (11), inner oblique strut bar (12), and inner horizontal bar (13) are mutually connected and fixed to form a second right triangle; the second right triangle is installed in the first right triangle, and the second right triangle Inner diagonal brace (12) is parallel with outer diagonal brace (9); Inner vertical rod (11) is connected with outer horizontal rod (8) and outer diagonal brace (9); Inner horizontal rod (13) is connected with outer The vertical bar (7) is connected with the outer slanting strut (9); the inner slanting strut (12) is connected with the outer vertical bar (7) and the outer horizontal bar (8); The bottom of the outer vertical bar (7) is fixed on the square wood (18) by the third distribution beam (16); The end of the first finish-rolled rebar (5) passes through the outer vertical bar (7) and is fixed by the first distribution beam (6); the end of the second finish-rolled rebar (17) passes through the square timber (18 ) and fixed by the second distribution beam (15). 2. The triangular bracket of No. 0 block of continuous rigid box girder bridge according to claim 1, characterized in that: the first finish-rolled threaded steel bar (5), the second finished-rolled threaded steel bar (17) and the pier body (3 ) is filled with cotton yarn (19) in the connecting hole (20) at the fixed place.