摘要
本文针对加州El Centro Imperial County服务大厦进行了震后反应分析,此大厦在1979年10月15日Imperial Valley地震中受到严重的破坏,随后被拆除。分析中应用记录到的基底输入加速度和现代标准线性动力分析程序,结果表明,危险柱子上的力超过极限承载力,而可以预期的结果,主要是脆性受压破坏。地震时产生的侧力远远超过建筑规范规定的拟静力设计力。研究结果还表明,柱的破坏受到反应的三维性质的强烈影响,它导致危险柱子中的三轴弯曲。
Postearthquake response analyses have been performed on the Imperial County Services Building in El Centre, California which was severely damaged during the Imperial Valley earthquake of 15 October 1979,and subsequently demolished. Using recorded base input accelerations and the contemporary standard linear dynamic analysis programs it has been shown that the forces in critical columns exceeded the ultimate capacity and that the result which could be expected was predominantly a brittle compressive failure. Lateral forces which developed during the earthquake far exceeded the pseudo static design forces specified by building code. It is also shown that the column failure was strongly influenced by three dimensional aspects of the response which induced triaxial bending into the critical columns.
出处
《地震工程与工程振动》
CSCD
北大核心
1993年第4期47-72,共26页
Earthquake Engineering and Engineering Dynamics
