A replaceable vibration-absorbing and energy-dissipating double-leg high pier tie beam

Abstract

The invention discloses a replaceable shock-absorbing and energy-consuming double-limb high pier tie beam, which relates to the technical field of bridge structure anti-seismic and shock absorption. The end plate, the end plate is fixedly connected with the high piers on both sides, the lug plate is welded on the plate surface of the end plate, one end of the turning plate is welded with the rigid rod, and the other end is connected with the lug plate through a concentric shaft, and the lug plate is connected with the rotating plate. A circular groove is arranged around the concentric axis on the contact surface of the plate, and a plurality of slot holes are evenly arranged along the circumferential direction of the groove on the contact surface of the rotating plate and the lug plate. Connected, the grooves and slots are filled with soft lead solidified as a whole. This tie beam can replace the traditional reinforced concrete tie beam, which can not only reduce the calculated height of the pier, improve the static stability, but also can dissipate energy during the earthquake, improve the seismic capacity of the pier, and is easy to replace after the earthquake.

Description

technical field [0001] The invention relates to the technical field of anti-seismic and shock-absorbing technology of bridge structures. Background technique [0002] With the implementation of China's western development and the "Belt and Road" policy, the western transportation construction has entered a new period of development. The terrain there is steep, and the terrain is mostly ravines and steep slopes, which put forward higher requirements for the design and construction of bridge engineering, and a large number of high-pier and even super-high-pier long-span continuous rigid frame bridges have appeared one after another. Among them, the double-leg pier is a common pier type of this type of bridge, and the pier height of this type of pier is usually set at 40 meters to 200 meters (more than 100 meters is considered a super high pier bridge), in order to reduce its calculation height and increase stability , the tie beams need to be set between the two-leg piers, an...

AI Technical Summary

Problems solved by technology

Since the current codes for seismic design of bridges only target bridges with pier heights below 40 meters, regulations and research on the seismic performance of bridges with high and super-high piers are very backward

Earthquake damage in recent years has shown that reinforced concrete tie beams are prone to damage and failure in earthquakes, which is a common earthquake damage for bridges with high piers. Reinforcement poses great difficulties

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