Abstract
Indian codes deal with Linear static (Equivalent static method) and linear dynamic (Response Spectrum method) methods of analysis. Guidelines are also given for Non-Linear dynamic analysis (Time history analysis) for the lateral load analysis. IS codes are silent about the guidelines for geometric non-linearity in the structure. In the case of low or medium rise structures, the geometric non-linearity will not have a significant effect, but for high rise structures, geometric non-linearity becomes a major issue. In this paper a G+50 storey RC structure with vertical irregularity is considered in such a way that P-delta effect is significant and the structure is analyzed by Linear Dynamic analysis as per IS codes and P-delta effects are included and analyzed as per ASCE code. The results such as displacement, storey drift, storey shear are compared and the significance of P Delta effects in high rise structure is studied.
Published Version
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