Bridge damping support and damping method

Abstract

The invention discloses a bridge damping support and a damping method. The bridge damping seat comprises an upper seat board, a lower seat board, a spherical cap liner plate, a steel damping element with variable cross section, an upper anchor bar connected with the upper seat board, and a lower anchor bar connected with the lower sat board, wherein the spherical cap liner plate is connected between the upper seat board and the lower seat board, and the steel damping element with variable cross section is connected at two sides or the periphery of the upper seat board and the lower seat board;and the upper end of the steel damping element with variable cross section is connected with the upper seat board, and the lower end is connected with the lower seat board. By adopting the bridge damping support for damping, the steel damping element with variable cross section is arranged at the periphery or two sides of the upper seat board and the lower seat board to reduce the space utilization rate of the damping element; and in severe earthquake, the steel damping element with variable cross section can reduce vibration and energy consumption and limit the displacement of the bridge damping support, so as to achieve the aim of reducing bridge earthquake response and preventing bridge falling. According to the invention, not only can a function of normal use of the support be realized, but also a vertical drawing effect is achieved by the limited displacement and vibration reduction and energy consumption reduction of the support to prevent bridge falling in severe earthquake.

Description

technical field [0001] The invention relates to the field of bridge anti-seismic technology. Background technique [0002] With the development of the economy, the country has also increased its efforts in infrastructure construction, and bridge engineering has developed rapidly. China is moving from a bridge country to a bridge power. As bridges are pivotal projects on traffic lines, how to prevent the safety of bridge epicenters has become an urgent need. In order to solve the disaster problem in the bridge earthquake, it is the simplest, economical and effective way to set the shock-absorbing and isolating bearing between the superstructure and the substructure of the bridge. During normal work or frequent earthquakes, the bridge bearings can meet the requirements of the superstructure by their own friction, but under extreme conditions such as strong winds and earthquakes, the bridge bearings bear large horizontal loads, which will cause excessive The large horizontal ...

AI Technical Summary

Problems solved by technology

The installation size and space occupancy of the ε-shaped steel damping element of the above-mentioned patent are large, and the consumption of processing materials is also large; the structure of the upper seat plate and the lower seat plate of the above-mentioned patent can only meet the normal force of the support; the above-mentioned patent ε-shaped steel damping element is in The designed earthquake action has already played a role, and it may be easily damaged under the action of a large earthquake

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