关于设计反应谱、时程法和能量方法的探讨

强震地面运动长周期分量对超高层建筑和大跨巨型结构具有重要影响，而现行的振型分解反 应谱法所采用的设计反应谱具有明显的局限性，基于地震加速度的结构动力方程式亦无法正确地估 计这种影响。本文探讨了采用速度反应谱和位移反应谱分析的可行性；对结构时程分析法的工程应 用价值和可操作性提出看法。讨论了能量方法的理论意义和实用价值，建立瞬时能量与结构最大地 震位移反应的关系，从而为结构地震反应分析和破坏准则，提供具有工程实用意义的新途径。

A Review of Seismic Response Spectra, Time History Analysis and Energy Method

The long period components of strong ground motion of earthquakes have significant influence on super highrise buildings and large span structures. Yet it cannot be evaluated by the normal dynamic equations based on acceleration parameters due to the limitation of response spectra for seismic design of buildings. In this paper, the availability of using velocity and displacement spectra for seismic design has been studied with the applicability of time history analysis of structures put forward. The theory of energy method and its practical value are also discussed. Finally, a new approach is suggested for analyses of the seismic response and damage criterion based on the relation between instantaneous energy of earthquake actions and maximum displacements of the structural response.