CN213772910U

CN213772910U - Bridge beam supports with cushioning effect

Info

Publication number: CN213772910U
Application number: CN202022338940.5U
Authority: CN
Inventors: 刘晗; 王志昂; 李娟�
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-07-23
Anticipated expiration: 2030-10-20

Abstract

The utility model relates to a bridge beam supports with cushioning effect, including beam bottom steel sheet, support base, middle part buffer and anchor bolt. The middle buffer device mainly comprises a tetrafluoroethylene plate, an upper steel plate, a high-strength spring, a bearing steel plate and a rubber base plate. Wherein the rubber backing plate is laid in the inside groove bottom of support base, is equipped with the bearing steel sheet on it, and high strength spring inlays admittedly between bearing steel sheet and last steel sheet, and the top of going up the steel sheet is fixed with the tetrafluoroethylene board, and the laminating of tetrafluoroethylene board top is the breast steel sheet, all is equipped with the bolt hole that has the rubber circle on breast steel sheet and the support base. The utility model discloses not only can make bridge superstructure's power normally transmit the bridge pier, can also slow down the impact of bridge superstructure to support and bridge pier to can slow down the impact to anchor bolt, avoid anchor bolt to take place to damage, make the life of support obtain improving.

Description

Bridge beam supports with cushioning effect

Technical Field

The utility model belongs to the technical field of the bridge beam supports, concretely relates to bridge beam supports with cushioning effect.

Background

The bridge support is an important structural component for connecting an upper structure and a lower structure of a bridge, is positioned between the bridge and the pad stone, can reliably transfer load borne by the upper structure of the bridge to the lower structure of the bridge, enables the upper structure of the bridge to have certain mobility, and is an important force transfer device of the bridge.

During the use process, the support and the bridge are ensured to be in close contact, otherwise the preset aim of force transmission cannot be achieved. In reality, due to the gradient change of the bridge span structure, the manufacturing error of the support and the like, the traditional support is often subjected to a void phenomenon, and thus the load transmission capacity of the support is greatly reduced. And because the vehicle load effect, superstructure also can produce the impact to support and substructure, and long-term effect undersetting and substructure can be difficult to avoid taking place to damage to the anchor crab-bolt of support also takes place bending and rupture easily, consequently need design a novel bridge beam supports, make it can perfectly laminate superstructure, guarantee the reliable transmission of load and deformation, can reduce superstructure to the impact of support itself and substructure again, and reduce the impact to the anchor bolt, thereby make the life of support obtain improving.

Disclosure of Invention

An object of the utility model is to provide a novel bridge beam supports to solve the shortcoming of the current bridge beam supports who proposes among the above-mentioned background art: the contact with the main beam is often not tight enough, and the force and deformation can not be effectively transmitted; the impact of the upper structure on the support, the support anchoring anchor bolt and the lower structure cannot be obviously reduced, and the service life of the support is short. Therefore, better force transmission can be realized between the bridge span structure and the bridge abutment, and the service life of the support is prolonged.

The utility model provides a technical scheme does: the utility model provides a bridge beam supports with cushioning effect, includes beam bottom steel sheet, support base, middle part buffer and anchor bolt, support base's inside groove upper berth has one deck rubber tie plate, is the bearing steel sheet on the rubber tie plate, is equipped with high strength spring on the bearing steel sheet, is equipped with the steel sheet on the high strength spring, goes up the steel sheet and inlays admittedly in support base's bounding wall, and the top of going up the steel sheet is fixed with the tetrafluoroethylene board, and the beam bottom steel sheet is being laminated on tetrafluoroethylene board upper portion, all be equipped with the bolt hole on beam bottom steel sheet and the support base, and the round of bolt hole is the rubber material, and anchor bolt passes the bolt hole that has the rubber circle and fixes the support between the superstructure and the pier of bridge.

The utility model has the advantages that: through setting up high strength spring, can guarantee when the bridge superstructure produces the slope and changes, the beam bottom steel sheet can also perfectly laminate the all the other structures of support to make bridge superstructure's power can normally transmit the bridge pier. And because the existence of high strength spring makes the support have the cushioning effect, can slow down the impact of bridge superstructure to support and bridge pier. Through set up the rubber circle around the bolt hole, can slow down the impact to the anchor bolt, avoid the anchor bolt to take place crooked and rupture, make the life of support obtain improving.

Drawings

Fig. 1 is a longitudinal sectional view of the present invention.

Fig. 2 is a component-disassembled view of the present invention.

Fig. 3 is a schematic view of the structure of the support base of the present invention.

In the figure, 1, a beam bottom steel plate, 2, a tetrafluoroethylene plate, 3, an upper steel plate, 4, a high-strength spring, 5, a bearing steel plate, 6, a rubber cushion plate, 7, a support base, 8, a rubber ring, 9, an anchor bolt, 71 and a bolt hole.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, so as to fully understand the objects, features and effects of the present invention.

Example (b): referring to fig. 1, a bridge support comprises a beam bottom steel plate 1, a support base 7, a middle buffering device and anchor bolts 9, a rubber cushion plate 6 is paved on an inner groove of the support base 7, a bearing steel plate 5 is arranged on the rubber cushion plate 6, a high-strength spring 4 is arranged on the bearing steel plate 5, an upper steel plate 3 is arranged on the high-strength spring 4, the upper steel plate 3 is embedded and fixed in a coaming of the support base 7, a tetrafluoroethylene plate 2 is fixed at the top of the upper steel plate 3, the upper part of the tetrafluoroethylene plate 2 is attached to the beam bottom steel plate 1, bolt holes 71 are arranged on the beam bottom steel plate 1 and the support base 7, a circle of the bolt holes 71 is made of rubber, and the anchor bolts 9 penetrate through the bolt holes 71 with the rubber rings 8 to fix the support between an upper structure and a pier of a bridge.

The utility model adopts the high-strength spring 4 as the buffer device, the spring has higher yield strength, does not cause plastic deformation when bearing the heavy load for a long time, has high fatigue strength, has longer service life under the repeated action of the load, and has less stress relaxation; the spring should also have sufficient toughness and plasticity to ensure sufficient cushioning and shock absorption capability.

The tetrafluoroethylene plate 2 is fixed on the upper steel plate 3, attached to the beam bottom steel plate 1 and supports the horizontal displacement of the beam bottom steel plate 1.

The upper steel plate 3 is fixedly embedded on the coaming of the support base 7, so that the upper steel plate 3 can not fall off.

A circle of the periphery of the high-strength spring 4 is provided with a moving space of the upper steel plate 3, so that the upper steel plate 3 can normally move up and down and incline.

The upper side and the lower side of the high-strength spring 4 are respectively embedded in the reserved grooves of the upper steel plate 3 and the bearing steel plate 5, and the spring is guaranteed not to deviate.

The beam bottom steel plate 1 is rectangular, the bottom surface of the support base 7 is also rectangular, and the outline of the buffer device in the middle of the support base is circular.

Four corners of the bottom surfaces of the beam bottom steel plate 1 and the support base 7 are provided with bolt holes 71, and a circle of the bolt holes 71 is made of rubber. The anchor bolts 9 pass through the bolt holes 71 with the rubber rings 8 to secure the bearing between the superstructure of the bridge and the abutment. Wherein, the beam bottom steel plate 1 is fixed on the bottom surface of the upper structure of the bridge, and the support base 7 is fixed on the pad stone of the bridge pier.

The above, only do the utility model discloses the embodiment of preferred, nevertheless the utility model discloses a protection scope is not limited to this, all be based on the utility model discloses embodiment, all other embodiments that obtain under the prerequisite that does not make creative work all belong to the scope of the protection of the utility model.

Claims

1. A bridge support with a buffering function comprises a beam bottom steel plate (1), a support base (7), a middle buffering device and an anchoring bolt (9), a layer of rubber backing plate (6) is laid on an inner groove of the support base (7), a bearing steel plate (5) is arranged on the rubber backing plate (6), a high-strength spring (4) is arranged on the bearing steel plate (5), an upper steel plate (3) is arranged on the high-strength spring (4), the upper steel plate (3) is fixedly embedded in a coaming of the support base (7), a tetrafluoroethylene plate (2) is fixed at the top of the upper steel plate (3), a beam bottom steel plate (1) is attached to the upper part of the tetrafluoroethylene plate (2), the beam bottom steel plate (1) and the support base (7) are both provided with bolt holes (71), and one circle of the bolt hole (71) is made of rubber, and the anchor bolt (9) penetrates through the bolt hole (71) with the rubber ring (8) to fix the support between the upper structure of the bridge and the abutment.

2. The bridge deck according to claim 1, wherein: a high-strength spring (4) is used as a buffer component of the bridge bearing.

3. The bridge deck according to claim 1, wherein: an inherent rubber ring (8) is embedded in the bolt hole (71).

4. The bridge deck according to claim 1, wherein: the upper steel plate (3) is embedded in the coaming of the support base (7) and can move up and down and incline.