持续时间(音乐)
计算
流离失所(心理学)
数学
地震动
点(几何)
时间点
航程(航空)
运动(物理)
算法
计算机科学
结构工程
工程类
几何学
物理
声学
心理学
航空航天工程
人工智能
心理治疗师
作者
Yiting He,Shuang Li,Yujia Wei,Lili Xie
标识
DOI:10.1016/j.soildyn.2022.107641
摘要
As a widely used dynamic computation method for seismic response analysis of structures, time history analysis (THA) can be a time-consuming procedure in some situations. In order to reduce the calculation time, this study proposed a novel strong ground motion duration which can truncate the head and tail weak signals of records before THA. The initial point of proposed duration refers to the concept of bracketed duration, while the termination point is determined by the maximum displacement responses of equivalent single-degree-of-freedom (SDOF) systems of the structure. The relationship between the fundamental period and period-lengthening level of structure is counted from previous research and fitted with a formula which is used to compute the period range of equivalent SDOF systems. After comparing the structural responses and time-saved percentage of truncated records by proposed duration with those by other definition of durations, results prove that the proposed duration has significant time-saving procedure and reliable computation results on THA.
科研通智能强力驱动
Strongly Powered by AbleSci AI