2007年ペルー・ピスコ地震の調査データに基づく建物被害特性

抄録

In this paper, seismic vulnerability of buildings located in Pisco, Peru, is studied using damage survey data and simulated seismic ground motions. In the survey data by CISMID at National University of Engineering, Peru, the inventory and damage information of 10,000 or more lots was registered. The subsurface soil property in Pisco city was divided into three zones based on the predominant periods of microtremor at 85 sites, and the damage ratio at each zone was calculated. Furthermore, the seismic ground motion in each zone was estimated from simulated bedrock motion and the 1D transfer functions of the surface soil. Finally, the fragility curves for adobe and brickmasonry buildings were derived in terms of PGA and PGV, and compared with those from previous researches.