摘要:结合工程实例，对超限框支结构设计原则进行简要论述。通过对设计探索过程的剖析，我们试图阐明：对于较为复杂的结构体系，在缺乏较为明确或常规的规范依据情况下，需要回归到结构设计最基本的原理上。先期针对结构不同部位、不同受力状态，分别设定出在小震、中震、大震作用下不同的抗震设防目标，并根据目标期望，进行有目的的结构分析，并取得相对应的、可靠的内力值。这样，才更能够最真实的反应出结构状态，从而确保结构安全。

Abstract: Brief discussion on design principles of over-limit frame-supported structure. Through analyzing the deign process, we endeavor to illustrate that for relatively complex structure system, due to the lack of clear specifications or normal requirements from current design codes, need to back to the basic deign principles of structural design. Firstly, need to set the fortification level of seismic deign, under the small, medium and great earthquake respectively, for different parts of the structure and under different forces. Then proceeding with purposive structural analysis, base on the different anticipations and acquiring the corresponding and reliable internal force values. This way, the actually structural status can be reflected and finally secure the safety of the structure.