vertical earthquake force in framework is analysed in this paper. we think it quite reasonable to explain the frameworks with the vertical earthquake force calculated.
本文分析计算了框架的竖向地震力,并用它来解释震害,我们认为是比较合理的。
it proves the damaging causes that the vertical earthquake force has played, for which the seismologists have discovered its important role in the magistoseismic area.