【摘要】 本文利用澜沧-耿马地震中记录到的强震加速度数据,对地面运动加速度峰值和反应谱进行了统计分析。文中研究了震级、震中距、地震方位和场地条件等各种因素对加速度峰值和反应谱形状的影响,提出了适用于本地区的地震加速度峰值和反应谱值的哀减公式并和过去的一些研究结果进行了对。比文中证明了地面运动加速度矢量峰值的衰减与烈度等震线或主发震断层走向的对应关系。更多还原

【Abstract】 The paper presents the statistics and analysis on the peak acceleration values and the response spectra of ground motions by using the strong accelerograms from the Lancang-Gengma Earthquake. The influence of magnitude, epicentral distance, focus orientation and site geology on the peak values of acceleration and the shape of response spectra has been investigated. The attenuation laws of peak acceleration and spectra have been derived and compared with the previous researches. The correlation between acceleration vectors of the ground motion and aspects of the seismals or the major-active fault has also been identified.更多还原