反应谱法的发展历史(英文)

The concept of the response spectrum method was formulated and proposed in 1932 for use in the analysis and design of earthquake-resistant structures. To commemorate the 70th anniversary of this event, this paper reviews Biot’s seminal contributions, which created this method, and then briefly outlines the milestones in the general evolution of the response spectrum method. The techniques for computation of spectral amplitudes and the studies of spectral shapes are described for the period preceding the modern digital computer age. The role of response spectrum in influencing the development of design codes, and their transition from the use of static to dynamic methods of analysis are illustrated, using the examples from code development in California. Finally, the limitations of the linear response superposition method are considered, and future directions for the development of the earthquake-resistant design tools are suggested.