【摘要】 在我国烈度表中提到的房屋指的是未经过抗震设计或加固的单层或数层的砖混和砖木房屋.但是随着我国经济的发展,这类房屋的数量在逐渐减少,能够根据抗震设防房屋的破坏情况进行烈度评定对目前的地震现场工作具有重要意义.本文通过震害矩阵和平均震害指数的关系,尝试利用框架结构和砖混结构的震害矩阵得到设防烈度-震害指数的拟合关系,建立不同抗震设防水准的框架结构和砖混结构的烈度评定标准,并利用近年来9次中国大陆地震的烈度评定结果对该评定标准进行验证.本文评定的结果与这些地震现场评定结果基本一致.本研究结果可作为在我国抗震设防地区利用多种结构形式的建筑物破坏情况进行烈度评定的依据.更多还原

【Abstract】 The buildings referred to in China Intensity Scale are those without seismic design.With the economy development of China,the amount of the buildings without earthquake-resistant design is decreasing.The assessment of seismic intensity based on the damage state of buildings with the seismic design is urgently needed.According to the relationship between seismic damage matrix and mean damage index,the seismic intensity scale of the mean damage index for frame structure and masonry structure with different seismic design level is proposed.This seismic intensity scale is verified with the intensity assessment result of 9 earthquakes in the mainland of China.The research result of this paper can be used in the seismic intensity assessment in the earthquake-resistant region of China.更多还原