Comparison of Seismic Parameter in RC Building Using NBC 105:2016, IS 1893:2016 and ASCE 7-22

This work aims to compare three codes; ASCE 7-22, IS 1893:2016 and NBC 105:2020 in terms of lateral effect on RC building, focusing on the seismic force effect. Since all of the codes have different standards and factors, therefore it is expected that there will be some differences in the structural behavior. This research will contain analysis of building consisting of 5 RC buildings and comparison of several provisions. This research study will investigate the difference between seismic results between the all codes and if there might be any differences in the structural elements reinforcement percentage. In order to illustrate a real and accurate comparison, all these structures have been compared in similar circumstances; all of them were assumed to be designed in Nepal. This analysis has been performed using ETABS software. The ETABS software will be used in analysis. In this study building was analyzed to compare the base shear, storey displacement, storey drift, percentages of reinforcement and fundamental time period in accordance with Nepal National Building Code, Indian Standard and American Society of Civil Engineers guidelines. The analysis results indicated that NBC 105:2020 showed a higher value of base shear compared to the other codes. NBC 105:2020 showed higher inter storey drift than other two codes. The displacement obtained in NBC 105:2020 is found to be higher than other two codes. Fundamental time period is more in NBC 105:2020 than other two codes. The investigation revealed that the revised NBC 105:2020 displayed higher values for all response parameters analyzed. Based on the design outcomes, the ASCE codes exhibited the highest percentage of longitudinal rebar, while NBC 105:2020 depicted the lowest. Furthermore, the study emphasizes the adherence to building code regulations during construction. The findings of this study aim to equip designers with comprehensive knowledge regarding seismic provisions and standards to facilitate informed decision- making in their design activities.