REPAIR AND SEISMIC RETROFITTING OF HOSPITAL AND SCHOOLBUILDINGS IN PERU

摘要

The earthquake that hit southern Peru on June 23, 2001 (Mw=8.4) caused important damage to thehospital and school infrastructure of southern Peru and northern Chile. The affected zone was declared inemergency, the repair and retrofitting of the buildings had to be done quickly and with limited economicresources. While developing the reinforcement or retrofitting projects, the construction documents of thebuildings under reparation were often unavailable, and it was impossible to follow the publishedinternational recommendations defining the seismic protection levels and methodology. The performanceobjectives adopted were below those indicated as basic by FEMA. The general strategy was to increasethe resistance and rigidity levels by the inclusion of concrete or masonry walls. Nowadays, most of therepaired or retrofitted buildings are in use, and although it was not possible to provide them with anoptimal seismic performance, an important reduction on their vulnerability has been attained. Thisexperience suggests the need to develop procedures for seismic retrofitting of buildings in developingcountries, with reduced objectives, but feasible in technical and economic terms.