学术论文详情

摘要：The great Wenchuan earthquake,which measured as 8.0 Ms and occurred on May 12,2008 in Sichuan province of China,has caused severe damage to many highway bridges and also left us with valuable information that can be analyzed to reduce potential losses associated with future earthquakes.The Lessons learned from Wenchuan seismic damages of highway bridges were summarized.It is believed that special attention should be paid to(1) bridge seismic response and unseating damages subjected to near-fault ground motions;(2) preventive design of collapse damage of curved girder bridges with small radius;(3) ductility and seismic design,detailed reinforcement of bridges and seismic damage control of high-rise piers under deep water.The recent research progress of our research team on seismic performance of highway bridges was summarized.It includes design idea and method of unseating protection of highway bridges,deformation capacity and shear strength of PC bridge piers,numerical simulation of seismic damage mechanism of curved girder bridges,and countermeasures to prevent collapse of curved girder bridges with small radius.