1. Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province,
Lanzhou University of Technology, Lanzhou 730050, China
2. Shandong Provincial Key Lab of Appraisal and Retrofitting in Building Structures, Shandong Jianzhu University, Jinan 250101, China
Investigation on selection and modification of ground motion records for the influence of seismic responses of RC frames
Abstract：The reasonable selection and modification of ground motion records is an important factor for the reliable nonlinear time history analysis results of structures. 7 groups of ground motion records were selected and modified by spectral matching and spectral acceleration corresponding to the fundamental period of the structure Sa(T1). Then, a 5-story and an 11-story planar reinforced concrete frames were analyzed via nonlinear time history analysis method with a single intensity measure under the spectrum-matched and modified ground motion records respectively. Maximum inter-story drift ratios and maximum residual inter-story drift ratios of the structures were taken as engineering demand parameters (EDPs) and the dispersion and bias of EDPs were also discussed. The analysis results show that choosing reasonable ground motion records to be modified and matched with the target spectrum can reduce the dispersion of the structural response results without conspicuous bias. With the same intensity measure Sa(T1), the analytical response results of the structures will decrease with the increasing of spectral shape parameter ε of the condition spectrum.
韩建平 魏世龙 张鑫. 地震动记录选择与调整对RC框架结构地震响应影响研究[J]. 土木工程学报, 2016, 49(S1): 43-48.
Han Jianping Wei Shilong Zhang Xin. Investigation on selection and modification of ground motion records for the influence of seismic responses of RC frames. 土木工程学报, 2016, 49(S1): 43-48.
