Detection of Weak Sections in Existing RC Structure due to Extension of Storey under Seismic Forces
Keywords:
Equivalent static method, Dynamic analysis, Geometric Nonlinearity, Lateral Loads, Non-Linear Analysis, P-Delta.Abstract
Present study we investigate how a building got affected for increasing the storey above it under seismic forces. First, we analyze and design a G+3 (residential/commercial) building according to Indian Standard with considering Earthquake forces, then providing size of section and reinforcement accordingly. After this we extent this building with one storey and determine the response of the building during earthquake, check the member size and reinforcement. Structure analysis software ETABS is used for all this analysis. Results of both the models compared to explore the impact of added stories under seismic condition. The addition of an extra floor alters the value of forces, base shear, displacement, drift, etc. experienced by the structure. Let’s explore the impact of extending storey on existing building.
References
A.Bahrami1, S. Deniz2 and H. Moalin3, “Vertical Extension of a Multi-Storey Reinforced Concrete Building”, Sciendeo, International Journal of Applied Mechanics and Engineering · March 2022 2022, vol.27, No.1, pp.1-20.
Agarwal P. and Shrikhande M.“Earthquake resistant design of structure” in prentice hall, of India private limited, New Delhi, 2006,ISBN no. 81-203-2892-2.
Chung B.T., “Dynamic Behaviour of Multi-storey Buildings” Engineering Report, University of Auckland,1991, No. 492.
