E型钢阻尼支座的设计与减震性能分析

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Abstract Abstract：Research purposes： This paper introduces working principle, design method, and application examples of bearings with E-shape metallic dampers. Finite element analysis and laboratory test have been done to validate the feasibility on bridges, and analyses its relative displacement and inner force of bridge when design level earthquake and rare earthquake happen to validate its energy absorption.
Research conclusions：The calculating method that this paper adopts is basically consistent with the results of finite element analysis and laboratory test, which shows validity and feasibility of design in this paper. Practical bridge test results shows that：(1)Bearings with E-shape metallic dampers can effectively decrease the relative displacement on the top of pier and internal force on the bottom of pier, so as to meet seismic demand. (2)The hysteresis loop is full, which shows that bearings with E-shape metallic dampershave entered the plastic stage and played a good characteristic of energy dissipation. (3)Bearings with E-shape metallic dampers can effectively reduce seismic response of bridges, so as to protect bridges from structure damage in earthquake. (4)Bearings with E-shape metallic damperscan be used on railway bridges which adopt seismic isolation design.

Key words： Key words: damping and isolation technology for bridges bearings with E-shape metallic dampers energy dissipation and seismic isolation

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2015/V32/I2/70