Seismic Behavior of Steel Plate Shear Walls - Phase II

钢板剪力墙的抗震性能-第二阶段

• 批准号: 9019766
• 负责人: Mohamed Elgaaly
• 金额: $ 11.87万
• 依托单位: University of Maine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-01 至 1993-01-01
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9019766&HistoricalAwards=false
• 关键词: Seismic; Behavior; Steel; Plate; Shear

Currently, the design of steel plate shear walls is based on the elastic buckling as the limiting condition. This design criterion results not only in an uneconomical design but a system in which the building columns may yield and/or buckle under a major earthquake before the plate panels develop a fraction of their strength. The results from this project will be used to provide analytical tools and a guide to design criteria for thin steel plate shear walls under seismic loads, which take into consideration the post-buckling strength of the plate. One-quarter scale, one bay, three story thin steel plate shear walls will be tested. The effects of cutouts in the plate representing doors and window placement, the method the plate is connected to the building frame, and the effect of the axial compression in the columns will be investigated in this experimental program. The test results are expected to show stable hysterisis loops and high energy absorbing capabilities of thin- plate-shear-wall system as a viable earthquake-resistant structural element. Results of this project are expected to add new insights on the performance of thin steel plate shear walls in areas of high seismic risk.

目前，钢板剪力墙的设计以弹性屈曲为极限条件。这一设计标准不仅是一个不经济的设计，而且是一个建筑柱在大地震下可能屈服和/或弯曲的系统，而板板还没有发展出其强度的一小部分。该项目的研究结果将用于为地震荷载下薄钢板剪力墙的设计标准提供分析工具和指导。其中考虑了板的屈曲后强度。四分之一比例尺、一湾、三层薄钢板剪力墙将进行试验。在这个实验程序中，将研究代表门窗放置的板上的切口的影响，板与建筑框架连接的方法，以及柱中轴向压缩的影响。试验结果表明，薄板-剪力墙体系具有稳定的滞回环和较高的吸能能力，是一种可行的抗震结构单元。该项目的结果有望为高地震风险地区的薄钢板剪力墙的性能提供新的见解。