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近年来,日本在工程抗震设计方面所采用的方法,可归结为以下三种形式: 1.静态设计:基于古典静力理论的设计,仅用于某些刚性结构的设计。 2.动态设计:包括基于反应谱理论的所谓模型分析法和直接输入地震波求结构弹塑性地震反应的所谓时程反应分析法。这两种方法都叫做动态设计,且后者常作为前者的补充和校验。本文所说的动态设计,仅指后者而不包括前者,它除去包括了非线性地震反应分析的内容以外,还包括从结构的规划到结构的延性设计、延性构造等全部工程设计的内容。自1966年武藤清教授提出动态设计这一名词以来,日本在这方面的论文很多。
In recent years, the methods adopted by Japan in seismic design of engineering can be summed up in the following three forms: 1. Static design: The design based on classical static theory is only used for the design of certain rigid structures. 2. Dynamic design: Including the so-called model analysis method based on the response spectrum theory and the so-called time-history response analysis method for directly inputting seismic waves for structural elasto-plastic seismic response. Both of these methods are called dynamic designs, and the latter are often used as supplements and checksums for the former. The dynamic design referred to in this paper refers only to the latter and does not include the former. It excludes the contents of nonlinear seismic response analysis, and includes all the engineering design contents such as structural planning, structural ductility design, and ductile structure. Since Wu Tongqing proposed the term dynamic design in 1966, Japan has many papers in this area.