Essay On Seismic Design

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REVIEW PAPER
DESIGN AND ANALYSIS OF EARTHQUAKE RESISTANT STRUCTURE
SHUBHAM VILAS DHINDALE Prof. S.K. HARINKHEDE
T. E. Student, Associate Professor,
Department Of Civil Engineering Department Of Civil Engineering Sinhgad Academy of Engineering, kondhwa

Abstract - This paper deals with Seismic design and analysis Method like Seismic coefficient method. This paper involves the study of lateral forces calculated as per the provisions of IS 1893 1984 & IS 1893 -2002
Keyword – Seismic Coefficients, Base Shear, Earthquake analysis

INTRODUCTION –
In India, the first seismic code IS 1893
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These curves represent free field ground motion.
1. SEISMIC COEFFICIENTS
The Seismic Coefficients are dimensionless coefficients which represent the (maximum) earthquake acceleration as a fraction of the acceleration due to gravity. Typical values are in the range of 0.1 to 0.3.
2. BASE SHEAR Base shear is an estimate of the maximum expected lateral force that will occur due to seismic ground motion at the base of a structure. Calculations of base shear (V) depend on: soil conditions at the site vicinity to potential sources of seismic activity (such as geological faults) probability of significant seismic ground motion the level of ductility and over strength related with various structural shapes and the total weight of the structure the fundamental (natural) period of vibration of the structure when subjected to dynamic loading

The total design lateral force or design seismic base shear (VB) along any principal direction shall be determined by the following expression Vb= Ah

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