大型钢结构人行景观天桥地震时程反应分析

SEISMIC RESPONSE TIME HISTORY ANALYSIS OF LARGE STEEL STRUCTURAL VIEW PLATFORM BRIDGE

新疆属地震多发地区,建筑结构的抗震能力是结构分析和设计时需要考虑的重要因素。根据实际地震动记录分析某大型人行景观天桥的抗震能力,采用有限元方法,对其进行了时程反应分析。计算结果表明:人行景观天桥在地震荷载作用下,现有的设计方案具有足够的抗震能力,不会因地震而导致破坏。

Xinjiang Province is area of multiple earthquakes,earthquake proofing ability of a building is an important factor needed considering at the time of structure analysis and design.Based on the recorded material of actual seismic acceleration of ground motion,it is analysed the security of view platform bridge under earthquake,by means of finite element method,and its seismic response time history is studied.The result of calculation indicates: under the function of earthquake loading,the existing design plan of the bridge has enough earthquake proofing ability,and it will not result in destroying because of earthquake.