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本章将概述用来模拟大多数地震反应现象所必要的理论和数值公式,在具体应用中有可能作出很多简化,其中有一些在以后各章中将提到。虽然超出对基本物理参数现有的理解去分析是不够明智的,但忽略问题的重要特征进行分析而期望全完了解系统的动力特性同样也是不够谨慎的。无论在分析方法的选择方面还是对所获成果的整理分析方面,工程师的判断和认识最终占主导地位,本报告给出了必要的详细说明。
This chapter will outline the theoretical and numerical formulas necessary to model most of the seismic response phenomena. There are many simplifications that can be made in a specific application, some of which will be mentioned in later chapters. Although it is not sensible to go beyond the existing understanding of basic physical parameters, it is also not prudent to ignore the important characteristics of the problem and expect to fully understand the dynamic characteristics of the system. Regardless of the choice of analytical method or the analysis of the results obtained, the judgment and understanding of the engineer will eventually dominate. This report gives the necessary detailed explanation.