PROPOSED RETROFITTING STRATEGIES FOR EXISTING MULTISTORIED RC FRAMED HOSPITAL BUILDING

Abstract

INTRODUCTION This Report comprises of Proposed retrofitting measures for Ward Block of a Hospital Located in North East District of Delhi. This is a study of existing RC framed building as per latest prevailing codes, i.e. IS:456-2000, IS:1893-2002, IS:875:1987, IS:13920-1993, IS:4326-1990 etc (since it was designed on the basis of 1975 code of practices) and proposing various types of retrofitting The purpose of this study is to have seismic evaluation of existing building and a model program for retrofit. For analysis of building response spectrum method (with 5% damping for RC framed buildings) has been adopted. Although IS: 1893-2002 has been used to evaluate seismic forces, peak ground acceleration and spectral values, do not necessarily account for seismic sources or site conditions in rigorous way. There are significant knowledge gaps about local seismic sources and site conditions. Local seismic sources need to be defined, including location, fault mechanism, distance to ...