SEISMIC ANALYSIS AND COMPARISON OF VARIOUS BUILDING PARAMETERS FOR DIFFERENT ZONES ACCORDING TO BNBC 2020

Abstract

This thesis shows the effects of seismic load analysis of different zones of Bangladesh which states in BNBC 2020. We perform Linear Static Analysis and Response Spectrum Analysis by ETABS version 16.2.1. We performed those analyses to understand the earthquake effect in Bangladesh as there is a huge vulnerability to earthquake effect. This thesis covers both the analysis and comparison of result for all the four zones in Bangladesh. The storey displacement from the result were comparable with each other. The higher zone co-efficient seems to be responsible for a higher storey displacement. Though we take a 4 storied residential building for analysis but RSA results are not a satisfactory level where the LSA results are some beyond the limit, and some are not. Other building parameters are in satisfactory level such as Column P-M-M ratio is less than 1. As the LSA results are not such devastating like RSA, so there should be some addition for reducing the storey displacement in RSA result for each zone as like shear wall. Therefore, more analysis should be done for better result. Doing numerical evaluation helps us understand seismic behavior for small frame structures. It can also provide results and decisions about unique moment-resisting frame structures. But there should be done some practical or project work to establish a better performance of this thesis