摘要
本文基于118个地面强震记录水平面内每一方向的峰速度、峰加速度和阻尼比分别为0、2％、5％、10％、20％的绝对加速度反应谱数据,用每个记录的平均峰速度和平均峰加速度分别标定了相应的五种阻尼比的平均设计反应谱,统计了其动力系数的标准差,其结果可供重大工程抗震设计和地震地面运动小区划工作参考使用。在此基础上,利用作者建议的同时考虑房屋层数和场地类别时由地震烈度转换的地面峰加速度和峰速度得到平均设计反应谱,给出了相应的标准差,该结果可供一般工程抗震设计参考使用。
Five design response spectra, damping 0, 0.02, 0.05, 0.1 and 0.2, are respectively scaled by means of average peak ground velocity (PGV) and peak ground acceleration(PGA)of different horizontal direction based on the random peaks of 118 strong ground motion records.The standard deviations of the spectra are calculated.The results can be used for aseismic design of the critical structures and seismic microzonation.Based on these results, the scaling average design response spectra used for aseismic design of ordinary structures are obtained, in which the conversion relationship from seismic intensity to the PGV and PGA in consideration of the stories of building and the site conditions suggested by the writer is used.Besides, the corresponding standard deviations are also presented.
出处
《土木工程学报》
EI
CSCD
北大核心
1990年第4期60-68,共9页
China Civil Engineering Journal
