In regions of low to moderate seismic hazard and low wind speed, such as Singapore and Malaysia, buildings with relatively weak lateral load resisting structural system are likely to represent a large portion of the building inventory. Recent post-earthquake investigations indicated that extensive damage has occurred as a result of excessive shear deformation and severe strength degradation of the structural components in nonseismically detailed buildings, thus leading to their full collapse. Therefore, it is of great concern that the strength, ductility, and energy dissipation capacity of these structures are adequate to sustain earthquake-induced loads in regions of low to moderate seismicity. The need for evaluating and improving the detailing of existing structures is obvious. Problems have been encountered when assessing the seismic behavior of nonseismically detailed buildings. They are mainly due to the absence of a theoretical basis for evaluating the element and joint behaviors which are supported by a comprehensive test data. This presentation provides an overview of simulated seismic load tests conducted on reinforced concrete beam-column joint subassemblies; columns, and shear walls at the Nanyang Technological University (NTU), Singapore. These investigations attempt to gain a better understanding of the general behaviors of these structural components when subjected to seismic loading.

李 兵 （Bing LI）

南洋理工大学自然灾害研究中心主任, 他为新加坡、香港及新西兰的政府部门、建筑业主和国际建筑结构咨询公司和大型保险与再保险公司提供各类咨询，包括高层结构建筑、风险评估、恐怖袭击和地震等人为或自然灾害评估. 他的研究方向专注于钢筋混凝土结构，研究建筑在人为或自然灾害所产生的极端负载下的结构性能表现。

报告时间：12月24日(周一)下午3:30-4:30

地点：同济大学土木大楼B504室

主持：蒋欢军 教授