Performance-Based Design of Concrete Structure

Abstract

This paper presents a comparative PBSD analysis of G+9 regular RC frames using Response Spectrum and Time History methods in Zone IV as per IS 1893 (Part 1):2016. The primary objective of the thesis work is to verify the essential dimensions of primary structural members in the Lifeline Structures Condition of Collapse Prevention (CP), Life Safety (LS), and Immediate Occupancy (IO). The Time-History data for PGA 0.3g, 0.6g & 0.9g was used for this analysis and adaptive pushover analyses are conducted with different configurations and design parameters to calculate the lateral displacement, and the changing law of plastic hinge distribution and deformation mechanism of RC frame structures is investigated. Based on the analysis results, the displacement profile expression is proposed where the effect of elastic first order mode, maximum inter-story drift, column-to-beam strength ratio, height-width ratio, and the drift at first plastic hinge formation are involved. Its accuracy and reliability are validated by comparing them with the results of nonlinear time history analyses.