Seismic Vulnerability Assessment of Building Stocks at Village Jant, Mahendergarh, Haryana: Fid-Bau Portal

Seismic Vulnerability Assessment of Building Stocks at Village Jant, Mahendergarh, Haryana

Zaidi, S. A. M. / Kumar, N. / Nath, R. R.

Seismic vulnerability assessment of structures is a preliminary objective of any seismic microzonation process that aims for disaster risk reduction. Vulnerability assessment of the building stocks in potential earthquake hazard zone have high significance as a part of preparatory phase of disaster mitigation practices. The Mahendergarh-Dehradun fault (MDF), situated in western Ganga basin is an active fault and it has showed some recent low to mid intensity earthquake in last few years. Village Jant which is in vicinity of Central University of Haryana (CUH), Mahendergarh is considered for assessing the seismic vulnerability of building stocks adopting the Rapid Visual Screening (RVS) procedure proposed by the National Disaster Management Authority (NDMA). In this approach mapping of life threatening parameters (LTP) are taken as basis of primary assessment. The nuances associated with buildings like sitting issues, foundation, architectural aspects, material conditions and materials details are considered as LTP. In Village Jant, 104 buildings are investigated through RVS and it is observed building stocks comprises of mainly burnt clay brick masonry buildings (74%) and the left buildings are either confined masonry buildings (20%) or random rubble stone masonry (4%) etc. Most of the building built post 2015, are confined masonry buildings. Other common observations are like adjoining buildings with different storey heights (prone to ponding effects), large or heavy cantilever balconies, unanchored water tank, unanchored roof, cracks in load bearing walls, staircase at unsymmetrical location, buildings have walls made with mud mortar. Above mentioned results highlight the presence of non-engineered buildings which are vulnerable to low to moderate earthquake hence simplified vulnerability assessment is required in order to go forward in disaster risk reduction.