Three-way limiting buffering bridge anti-seismic stop dog structure and arranging and installing method

Abstract

The invention discloses a three-way limiting buffering bridge anti-seismic stop dog structure and an arranging and installing method. The bridge anti-seismic stop dog structure comprises a steel corbel, a stop dog lower structure and a stop dog upper structure; the steel corbel is fixed to the side face, in the bridge axial direction, of the top of a pier close to a bridge movable supporting base, the stop dog lower structure is fixed to the top of the steel corbel through bolts, a groove is formed in the lower portion of the stop dog upper structure, the stop dog upper structure is fixed to the bottom of a main beam of the bridge through bolts, and an impact block is arranged on the upper portion of the stop dog lower structure. Relative large displacement between a beam body and the pier in the bridge axial direction, bridge transverse direction and vertical direction can be effectively limited, damage to the movable supporting base and expansion joints is reduced, and the beam body is prevented from falling in the bridge axial direction and bridge transverse direction and prevented from vertically getting away from the supporting base to cause damage on the supporting base, beam cocking damage and vertical impact damage between the beam body and the supporting base. The three-way limiting buffering bridge anti-seismic stop dog structure is simple in structure, convenient to construct, easy to repair and replace and suitable for new and old bridges.

Description

technical field [0001] The invention belongs to the field of anti-seismic technology of bridges, and in particular relates to a three-way limit buffer energy-consuming bridge anti-seismic block structure and a setting and installation method. Background technique [0002] In recent years, with the rapid development of our country's economy and the needs of building a well-off society in an all-round way, a large number of roads have been built in our country. On May 23, 2015, the data released by the Ministry of Transport showed that by the end of 2015, the total mileage of highways in my country had reached 4,577,300 kilometers, including 779,200 road bridges and 45,927,700 meters. In order to improve the transportation efficiency of highways, protect the ecological environment along the highways, and save land resources, the idea of ​​replacing roads with bridges will lead the future infrastructure construction. However, most of the bridges built in our country are locate...

AI Technical Summary

Problems solved by technology

However, there is a lack of research on restricting relatively large displacements of beams along the bridge direction and relatively large vertical displacements of beams in my country.

In addition, at this stage, the collision between the reinforced concrete block and the beam body commonly used in my country to limit the relatively large displacement of the beam body in the transverse bridge direction is a rigid collision between concrete, which is likely to cause local damage in the collision area, and a large collision force will Transfer the collision effect between the reinforced concrete and the beam body to the bottom of the pier, causing damage to the bottom of the pier

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