Response spectrum solution for earthquake analysis of unsymmetrical multistoried buildings

Modal analysis and response spectra are use to develop an approximate method for earthquake analysis of unsymmetrical multistoried buildings modeled as shear-flexible cantilever beams. The beam has constant mass per unit length and a linear variation of elastic shearing resistance along its length. Existing modal solutions are used and response spectra for two horizontal earthquake components are included in the analysis. Solutions for a typical building are presented and compared with an exact form of solution.