暗柱对剪力墙平面外连接节点受力性能的影响研究

Effect of the Hidden Column on the Mechanical Behavior of a Non-planar Beam-wall Joint

框架-剪力墙结构和框架-核心筒结构中,钢筋混凝土楼面梁和剪力墙或核心筒的连接经常会出现两种节点情况:平面内节点:即梁与墙在同一平面内连接;平面外节点,即梁以一定角度与墙连接。文中研究的重点为后者,且为垂直连接的节点形式,目前国内外对此类节点的研究还比较少。采用ANSYS分析软件对配暗柱剪力墙构件进行了非线性有限元分析,并进行了实验验证。考虑了不同暗柱宽度对剪力墙平面外承载力的影响,数值分析与实验结果符合较好,表明了该数值模拟的正确性。

In frame-shear wall and frame-core tube structures, there are at least two different kinds of connecting joints between the reinforcement concrete floor beam and the shear wall or core tube. One is coplanar joint at which the beams are coplanar with the walls ; the other is non-planar joint at which the beams are at arbitrary angles to the walls. The focus of the present study is the latter which is the right angle beam-wall joints. So far only a few investigations concern the non-planar beam-wall joint, a nonlinear FEA is carried out for the shear-walls with hidden columns based on ANSYS. The effects of the different width of the hidden column on the non-planar load-carrying capacity of shear-wall are taken into account and the numerical results are proved correctly by comparing with the experimental results.