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Earthquakes and Structures Volume 6, Number 6, June 2014 , pages 611-625 DOI: https://doi.org/10.12989/eas.2014.6.6.611 |
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A methodology for development of seismic fragility curves for URBM buildings |
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Balasubramanian S.R., Balaji Rao K., Meher Prasad A. and Rupen Goswami and Anoop M.B.
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Abstract | ||
This paper presents a simple methodology that integrates an improved storey shear modelling, Incremental Dynamic Analysis and Monte Carlo Simulation in order to carryout vulnerability analysis towards development of fragility curves for Unreinforced Brick Masonry buildings. The methodology is demonstrated by developing fragility curves of a single storey Unreinforced Brick Masonry building for which results of experiment under lateral load is available in the literature. In the study presented, both uncertainties in mechanical properties of masonry and uncertainties in the characteristics of earthquake ground motion are included. The research significance of the methodology proposed is that, it accommodates a new method of damage grade classification which is based on „structural performance characteristics‟ instead of „fixed limiting values‟. The usefulness of such definition is discussed as against the existing practice. | ||
Key Words | ||
vulnerability analysis; fragility curve; capacity curve; capacity spectrum; improved storey shear modelling; incremental dynamic analysis; monte carlo simulation | ||
Address | ||
Balasubramanian S.R., Balaji Rao K. Anoop M.B.: CSIR-Structural Engineering Research Centre, CSIR Campus, Taramani, Chennai-600113, Tamil Nadu, India Meher Prasad A. and Rupen Goswami: Department of Civil Engineering, Indian Institute of Technology Madras, Chennai-600036, Tamil Nadu, India | ||