基于持时的地震能量研究状况与进展

Current Situation and Advances in the Seismic Energy Research Based on Motion Duration

基于地震持时的重要性,本文阐述了当前各种持时的定义及其应用。此外,列举了地震输入能量的简化计算方法,并从地震能量的计算、地震波输入选择、地震损伤评价三个方面,探讨了地震持时与能量的关系。最后,从利于结构抗震的角度出发,对结构构件的滞回耗能计算方法的研究提出了建议。

Based on the importance of the earthquake motion duration, the paper elaborates on many current definitions and application of the duration. Moreover, the paper introduces the simplified calculation way of the seismic input energy, and discusses as well the relation of the earthquake motion duration and the energy from three aspects of the calculation of seismic energy, the selection of seismic wave input and the evaluation of seismic damage. Finally,from the perspective of seismic design of structures, the paper suggests to study the calculation way of hysteretic energy for structure members.