论文部分内容阅读
本文以一实际不规则结构为背景,对该原型结构进行抗震性能分析,并对其抗震设计提出相应的设计建议。通过振动台试验,研究原型结构在不同水准地震作用下动力特性的变化情况,考察原型结构在不同水准地震作用下的位移、加速度反应以及破坏形态、整体结构的扭转反应和薄弱环节等,同时对其破坏机理进行研究。结果表明:模型结构个别楼层平均位移比超过规范限值,说明结构存在扭转不规则超限,但超限程度较低,建议适当采取措施,以提高整体抗扭刚度。
In this paper, an actual irregular structure is taken as the background, the seismic behavior of the prototype structure is analyzed, and the corresponding design suggestions are proposed for its seismic design. Through the shaking table test, the dynamic characteristics of the prototype structure under different levels of earthquakes are studied. The displacement, acceleration response and failure modes of the prototype structure under different levels of earthquake are investigated. The torsional responses and weak links of the whole structure are also studied Its destruction mechanism to study. The results show that the average displacement ratio of individual floors in the model structure exceeds the specification limit, which indicates that the structure has irregular torsion overstep but low overrun level. It is suggested that appropriate measures should be taken to improve the overall torsional stiffness.