CN217149867U

CN217149867U - Arched gate-type pier structure for lower part of bridge

Info

Publication number: CN217149867U
Application number: CN202220903141.4U
Authority: CN
Inventors: 王鲁; 姜雨楠; 王江; 李黎; 周津斌; 江长逵; 刘向琼; 胡步毛; 李伟东; 张许
Original assignee: China Railway Liuyuan Group Co Ltd
Current assignee: China Railway Liuyuan Group Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-09
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses an arch gate-type mound structure for bridge lower part, including arch rib, tie beam, tie rod and pier, the arch rib top with pier upper portion is connected, the arch rib lower part is through horizontal installation the tie beam with pier sub-unit connection, the tie rod is connected the arch rib with the tie beam, bridge superstructure erects on the tie beam. By using the novel bridge structure, the phenomenon that a large-span bridge spans a road is avoided, the transverse spanning capacity and the application range of the bridge in a city can be greatly improved, and the novel bridge structure is parallel to the existing road, so that the removal range is reduced, the investment is saved, and the construction is convenient.

Description

Arched gate-type pier structure for lower part of bridge

Technical Field

The utility model relates to a track traffic field, concretely relates to arch gate-type mound structure for bridge lower part.

Background

In recent years, with the rapid development of economy in China, urban roads are wider and wider, and urban main roads can reach the width of more than 40 m. The newly-built bridge in the city can meet the situation that the existing road is crossed by a small angle inevitably, at the moment, if the newly-built bridge needs to cross the urban arterial road by a small angle, a large-span bridge must be built, certain requirements are provided for the oblique crossing angle, and if a large number of houses are arranged on two sides of the road, the problem of removal is also involved. However, the conventional gate-type pier can only span about 20m, can only span a relatively narrow road and cannot span a large urban main road, and a novel structure is needed to span the large urban main road.

SUMMERY OF THE UTILITY MODEL

Less not enough to conventional gate-type mound transversely stridees across the ability, the utility model discloses a arch gate-type mound structure comprises arch rib, tie beam, tie rod and pier, has improved the rigidity of arch gate-type mound through arch rib and tie rod by a wide margin, has improved the transversely strideing across ability of bridge by a wide margin, has higher practical value.

The utility model discloses a following technical scheme realizes:

the arched portal pier structure for the lower part of the bridge comprises arch ribs, a tie beam, a tie bar and a bridge pier, wherein the top ends of the arch ribs are connected with the upper part of the bridge pier, the lower parts of the arch ribs are connected with the lower part of the bridge pier through the tie beam which is horizontally arranged, the tie bar is connected with the arch ribs and the tie beam, and the upper part of the bridge is erected on the tie beam.

Furthermore, the arch rib is arched, and the bottom of the arch rib is directly arranged on the lower foundation.

Furthermore, the arch rib is of a steel pipe concrete structure, a box-type structure is formed by two steel pipes and steel plates, one steel pipe is located in the outer arc of the arch, the other steel pipe is located in the inner arc of the arch, and concrete is poured into the steel pipes.

Furthermore, the tie beam is of a box-shaped structure, the reinforcing ribs which are long and continuous are arranged around the inside of the structure at intervals, the transverse partition plates are arranged at longitudinal intervals, the middle positions of the transverse partition plates are provided with access holes through which people can pass, and the access holes are long round so as to reduce stress concentration.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model discloses a arch gate-type mound structure for bridge lower part, the stride footpath can reach more than 50m, has improved the horizontal leap ability of bridge by a wide margin, has extended the application scope of bridge.

2. The method avoids adopting a large-span bridge to cross the road and is parallel to the existing road, thereby reducing the scope of removal, saving investment and facilitating construction.

Drawings

FIG. 1 is a structural elevation view of the present invention;

FIG. 2 is a cross-sectional view of a rib;

FIG. 3 is a cross-sectional view of the tie beam;

FIG. 4 is a tie rod installation schematic;

fig. 5 is a schematic structural diagram of an embodiment.

Reference numerals: 1-arch rib, 2-tie beam, 3-tie bar, 4-pier, 5-bridge superstructure, 6-steel pipe, 7-steel plate, 8-concrete, 9-reinforcing rib, 10-diaphragm, 11-manhole, 12-existing road, 13-arch gate pier structure, 14-common pier.

Detailed Description

In order to make the technical features of the present invention more easily and clearly understood, the structure of the present invention will be described in detail with reference to fig. 1 to 5.

An arched portal pier structure for the lower part of a bridge comprises an arch rib 1, a tie beam 2, a tie bar 3 and a bridge pier 4, wherein the top end of the arch rib 1 is connected with the upper part of the bridge pier 4, the lower part of the arch rib 1 is connected with the lower part of the bridge pier 4 through the tie beam 2 which is horizontally arranged, the tie bar 3 is connected with the arch rib 1 and the tie beam 2, and a bridge superstructure 5 is erected on the tie beam 2. The arch rib 1 is arch-shaped, and the bottom of the arch rib is directly arranged on the lower foundation. The arch rib 1 is of a steel pipe concrete structure, a box-type structure is formed by two steel pipes 6 and steel plates 7, one steel pipe 6 is located on an outer arc of an arch, the other steel pipe 6 is located on an inner arc of the arch, and concrete 8 is poured into the steel pipe 6. The tie beam 2 is of a steel plate box type structure, the reinforcing ribs 9 which are long are arranged around the inside of the structure at intervals, the transverse partition plates 10 are arranged at longitudinal intervals, the middle positions of the transverse partition plates 10 are provided with access holes 11 which can be used for people to pass through, and the access holes 11 are long circles to reduce stress concentration.

When a newly-built bridge in a city meets the condition that a small angle needs to cross an existing road 12 as shown in fig. 5, a common pier 14 is still adopted to support a bridge superstructure 5 at a part of the bridge outside the existing road 12, 4 arched gate-type pier structures 13 of the embodiment are arranged at intervals along the length direction of the bridge at the part of the bridge crossing the existing road 12, and the bridge superstructure 5 is installed on the arched gate-type pier structures 13 of the embodiment so as to realize that the newly-built bridge spans the existing road 12 at a small angle.

By using the novel bridge structure, the transverse crossing capacity and the application range of the bridge in the city can be greatly improved.

The above description is only for illustrating the structural features of the present invention, and is not limited to the specific structure shown and described, so as not to depart from the design spirit and intention of the present invention, all obvious changes and the similar structural schemes designed by local modification and optimization on the basis of the present invention are all included in the protection scope of the present invention.

Claims

1. An arched portal pier structure for the lower part of a bridge is characterized by comprising an arch rib (1), a tie beam (2), a tie bar (3) and a bridge pier (4), wherein the top end of the arch rib (1) is connected with the upper part of the bridge pier (4), the lower part of the arch rib (1) is connected with the lower part of the bridge pier (4) through the tie beam (2) which is horizontally arranged, the tie bar (3) is used for connecting the arch rib (1) with the tie beam (2), and a bridge superstructure (5) is erected on the tie beam (2).

2. An arched portal pier structure for the lower part of a bridge according to claim 1, characterized in that the arch rib (1) is arched, the bottom of which is mounted directly on the lower foundation.

3. An arched portal pier structure for the lower part of a bridge according to claim 2, characterized in that the arch rib (1) is a steel pipe concrete structure, a box structure is formed by two steel pipes (6) and a steel plate (7), one steel pipe (6) is located at the outer arc of the arch, the other steel pipe (6) is located at the inner arc of the arch, and concrete (8) is poured into the steel pipe (6).

4. The arched portal pier structure for the lower part of a bridge according to claim 1, wherein the tie beam (2) is a box-shaped structure, the inside of the box-shaped structure is provided with through-long reinforcing ribs (9) at intervals, transverse partition plates (10) are arranged at intervals in the longitudinal direction, an access hole (11) through which people can pass is formed in the middle of each transverse partition plate (10), and each access hole (11) is oblong.