Seismic Behavior of Steel Plate Shear Walls - Phase II

目前，钢板剪力墙的设计多以弹性屈曲为极限条件。这种设计准则不仅导致了一种不经济的设计，而且导致了一种体系，在这种体系中，建筑柱子在大地震下可能会屈服和/或屈曲，而板板的强度还没有发展到一定程度。该项目的成果将被用于提供分析工具和地震荷载下薄钢板剪力墙设计准则的指南，这考虑了板的后屈曲强度。进行1/4比例、1个开间、3层薄钢板剪力墙试验。表示门窗位置的板上的切割效果，板连接到建筑框架的方法，在本试验方案中，将研究柱中轴压的影响。试验结果表明，作为一种可行的抗震结构构件，薄板-剪力墙体系具有稳定的滞回曲线和较高的吸能能力。该项目的成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。

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.