梁墙平面外节点结构设计的研究

随着高层建筑结构设计的发展,框架-剪力墙结构体系中将大量出现“钢筋混凝土框架梁-剪力墙平面外连接节点”。但是现行的结构设计规范不能确定剪力墙的平面外承载力以及节点核芯区的抗剪承载力。此类问题已引起研究者和工程师们的关注。本文首先对梁墙节点的受力性能进行了有限元分析,然后根据有限元分析结果提出梁墙节点结构设计建议:在剪力墙与框架梁相交处沿墙高方向设置暗柱,同时沿墙宽方向设置明梁。

Study on Structural Design of Out-of-plan Beam-wall Joint

With the development of the structure design in the tall buildings, the non-planar reinforced concrete beam-wall joints will be widely used in the frame-shear wall structures. However there is no established method for the detailed design of the non -planar beam -wall joints based on the current code for the design of the concrete structures, the application of such joints may bring the hidden trouble. In this paper, the non-planar beam-wall joints are analyzed using the finite element method. On the basis of the results of the structure analysis, it is proposed that a column with the same thickness as the wall and a beam with the beam length equal to the wall width should be set at the non-planar beam-wall joints.