The Buildings, which appeared to be strong enough, may crumble like houses of cards during earthqua ke and deficiencies may be exposed. Experience gain from the recent earthquake of Bhuj, 2001 demo nstrates that the mo st of buildings collapsed were found deficient to meet out the requirements of the present day codes. In last decade, four devastating earthquakes of world have been occurred in India, and low to mild intensities earthquakes are shaking our land frequently. It has raised the questions about the adequacy of framed structures to resist strong motions, since many buildings suffered great damage or collapsed. Under such circumstances, seismic qualification of existing buildings has become extremely important. Seismic qualification eventually leads to retrofitting of the deficient structures In the proposed investigation a performance based evaluation and retrofit of an existing hostel building in Babasaheb Naik College of Engineering, Pusad. Built in 1987, the subject hostel building is a four-story, rectangular structure. A nonlinear static pushover analysis using the displacement coefficient method, as described in FEMA 356, is used to evaluate the seismic performance of the existing building. A seismic retrofit using energy dissipating device based on pushover analysis is proposed for the life-safety target performance of the existing building.
展开▼
