<span>两边连接钢板剪力墙结构抗震性能分析</span>-华南地震

文章信息/Info

Title:: Seismic Behavior of Steel Plate Shear Walls with Beam-Connected Plates

Author(s):: WANG Hao; CHEN Lin; WU Shanhu?; （Guangzhou University，Guangzhou 510006，China）

Keywords:: Steel plate shear wall; Beam-connected steel plate; Panel aspect ratio; Nonlinear static analysis; Deformation mode

摘要:: 两边连接钢板剪力墙的内嵌钢板仅与边框梁连接，可以减小对边框柱的承载力和刚度需求。提出两边连接钢板剪力墙结构的抗震性能目标和设计方法，设计了层数和跨度不同的结构体系。利用ABAQUS软件建立结构的有限元模型进行水平推覆分析。分析结果表明，钢板墙跨度越小，所需钢板厚度就越大，导致边缘构件尺寸增大，结构在钢板屈服后仍有较大的承载能力。随着钢板墙跨度增大，结构侧移曲线的变形特征由弯曲型变为弯剪型。层数越多，跨度越小，结构弯曲作用就越明显，上部钢板不易屈服。工程设计中选取合适的钢板墙跨度可以减小构件截面尺寸和用钢量，使结构设计更为经济。

Abstract:: Connecting the web plate to the frame beams only can reduce the capacity and stiffness demands of the frame columns. The article puts forward the seismic performance goals and design methods of steel plate shear wall with beam-connected plate，and designs structural systems with different layers and spans. These structures are studied with numerical models by using nonlinear static analysis. Results show that the selection of smaller bay width produces thicker steel plates and stronger boundary elements，and the SPSW-BC structures are provided with more overstrength. With the increase of bay width，the deformation modes of structures change from flexural deformation modes to flexural and shear deformation modes. The taller structures with smaller bay width present obvious flexural deformation mode，which make it difficult to achieve desirable uniform-yielding mechanism of steel plates. The selection of suitable bay width can minimize the member sections and structural weight，consequently produce economical structures.