从分析汉口地区所处的地震地质环境与场地岩土条件入手,考虑不同震级的潜在地震对场地长周期加速度反应谱的贡献,强调强地面运动记录长周期信号的可靠性,选用了102条水平向强地震动加速度记录.通过统计分析强震记录的平均加速度反应谱,建立了适用于柔性结构抗震设计的长周期地震加速度反应谱. Based on the analysis of the seismic geo-environment and geotechnical conditions in Hankou, considering the contribution of potential earthquakes of different magnitudes to the long-period acceleration response spectrum of the site and emphasizing the reliability of long-period signals recorded by strong ground motions, 102 levels The acceleration records of strong earthquakes are obtained. By analyzing the average acceleration response spectrum of strong earthquakes records, a long-period seismic acceleration response spectrum suitable for the seismic design of flexible structures is established.