CAESAR II : : dynamic loading factor的定义? 1. 谢谢楼上的 . 你所给的公式定义了 dynamic loading factor . 但同时有给了我另一个问题 : 怎么样确定 maximum static displacement? 今天上午在看 caesar ii 的技术参考手册发现也给出了类似的答案 . 引用如下 : instead of the displacement, velocity, or acceleration spectrum used for the **smic problem, a dynamic load factor spectrum is used for a force spectrum problem. a dlf spectrum gives the ratio of the maximum dynamic displacement divided by the maximum static displacement. whereas the arthquake response spectrum analysis method started with the time history of an earthquake excitation, the force spectrum analysis method is done in exactly the same way—except that the analysis starts with the force vs. time profile. just as for the earthquake, this time history loading can be applied to a shake table of single degree-of-freedom bodies, with a response spectrum (in this case, dlf vs. natural frequency) being generated by dividing the maximum oscillator displacements by the static displacements expected under the same load. an alternate means of generating a response spectrum for an impulse load is to numerically integrate the dynamic equation of motion for oscillators of various frequencies under the applied load. this can be done using the pulse table/dlf spectrum generator available from the caesar ii main dynamics menu. 这段同样让我迷惑：静态位移是怎么来的？ 我自己猜测： 将系统最大振幅时的力，静态的施加与同一系统后，所产生的位移．不知道这么说对吗？ 查看更多
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