Methodology for Bridge Damage Estimation Based on Wenchuan Earthquake

Abstract

With the development of technology and society, the structure of bridge is gradually updated and scale is enlarged. The limitations of original bridge damage estimation models are gradually exposed, so it is necessary to rebuild the seismic damage model of bridges with new data. Among recent earthquakes, Wenchuan earthquake's high intensity, large influence scale and detailed damage survey report make it most suitable for establishing earthquake damage estimation model. Based on Zhu Meizhen’s estimation method, this paper uses the national standard earthquake damage index, and bridge linear, fortification intensity and other parameters are also added and expanded in order to make the model integrated and accurate. So that valuable information can be provided to earthquake relief work and casualties and economic losses can be reduced.