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运用多点激振方法，求解多支承结构在任意波形下的动响应。考虑到有时差地震波作用时，结构除通常意义的动应力外，还须附加拟静态内力。程序实现是在ＤＤＪ－Ｗ静力版基础上，开发了ＤＤＪ－Ｗ（ＭＪＥＤ）程序分析，计算了一座工程实例——无锡金城港斜拉管桥，并进行了有时差结果和无时差结果的比较
Multi-point excitation method is used to solve dynamic response of multi-support structure under arbitrary waveform. Taking into account the time-varying seismic waves, the structure in addition to the usual dynamic stress, the quasi-static internal force must be attached. The program is based on the DDJ-W static version, the DDJ-W (MJED) program is developed and analyzed. An example of engineering - Wuxi Jincheng Port Cable-Stayed Bridge was calculated and the results with and without time difference Compare