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Deriving Seismic Fragility Curves for R.C. Framed Buildings in Zone V Using Hard, Medium and Soft Soil as Per IS 1893 (Part 1):2002

Author(s):

Yash A Saraiya , CEPT University; Dhara Shah, CEPT University

Keywords:

RC Frame Structures, Pushover, Damage State, Hazard Parameter, Fragility Curve

Abstract

India is considered as one of the most disaster prone countries in the world. It has experienced several devastating earthquakes in the past which have resulted in a large number of deaths, injuries and severe property damage. There is a direct relationship between the damage of civil structures such as buildings to the number of casualties. Vulnerability of building is one of the major factors contributing to earthquake risk. As per National Building Code of India, half of the total money spent on construction is spent on buildings for various usage purposes. The frequent occurrence of damaging earthquakes clearly demonstrates the urgent need of study of earthquake risk assessment methods for disaster mitigation, disaster management, and emergency preparedness. In the present thesis seismic design of low-rise, mid-rise and high-rise buildings is carried out for zone V considering hard soil, medium soil and soft storey as per IS 1893 (Part1):2002, respectively. Pushover analysis is been performed using SAP2000 V17. Damage states are defined. Peak Ground Acceleration is taken as a hazard parameter and the demand statistics in terms of displacement are obtained for different sets of ground motion records which help to obtain a response matrix. A procedure for developing seismic fragility curves is been studied. The procedure for developing fragility curves can be explicitly performed using the Microsoft EXCEL. The fragility curves are used to represent the probabilities that the structural damages, under various level of seismic excitation, exceed specified damage states by means of earthquake intensity-damage relations and in turn will be helpful for can be utilized for prioritizing retrofit, pre-earthquake planning, and loss estimation tools such as cost-benefit analysis.

Other Details

Paper ID: IJSRDV4I40239
Published in: Volume : 4, Issue : 4
Publication Date: 01/07/2016
Page(s): 1115-1122

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