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介绍了近源地震的特点 ,研究了RC柱在近源地震时的延性特性。计算结果表明 ,近源地震的垂直地面运动的幅值和频率成分对柱的延性和拟加速度响应有很大影响 ,对位于近源地震区域的建筑物的抗震设计有必要考虑垂直地面荷载
The characteristics of near-source earthquakes are introduced, and the ductility characteristics of RC columns during near-source earthquakes are studied. The results show that the magnitude and frequency components of vertical ground motion near-source earthquakes have a great influence on the ductility and quasi-acceleration response of the column, and it is necessary to consider the vertical ground load for the seismic design of buildings located in near-source seismic areas