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引言在风与地震荷载作用下,高层建筑结构的分析,通常把结构分成x,y正交两个方向,按平面结构来考虑。如不同时发生侧向位移和扭转位移时,这一方法是有效的。也就是说,对于对称结构和有一个弹性轴的结构是有效的。作动力分析时,要求质量轴与弹性轴相吻合。显然,对于一个非对称结构,不能满足这些要求时,就得按空间分析。在这种情况下,问题的规模常常大于小型计算机(inhouse computer)的容量,采用普通计算
Introduction Under the influence of wind and earthquake loads, analysis of high-rise building structures usually divides the structure into two orthogonal x and y directions and considers it as a planar structure. This method is effective when lateral displacement and torsional displacement do not occur simultaneously. That is, it is effective for a symmetrical structure and a structure with a flexible shaft. For dynamic analysis, the mass axis and the elastic axis are required to match. Obviously, for an asymmetrical structure that cannot meet these requirements, it must be analyzed spatially. In this case, the size of the problem is often larger than the capacity of the inhouse computer, using ordinary calculations.