新型半刚性梁柱节点强轴方向抗震性能研究
吴祖咸 , 方瑜 , 杨浩浩 , 罗金辉 , 孟浩 , 郭小农
结构工程师 ›› 2025, Vol. 41 ›› Issue (05) : 103 -112.
新型半刚性梁柱节点强轴方向抗震性能研究
Research on the Seismic Performance of Novel Semi-Rigid Beam-Column Joints in the Strong-Axis Direction
为配合装配式建筑的应用,本文设计了一种使用盖板的H型钢柱连接半刚性节点,能够实现H型钢柱在强轴、弱轴方向与梁进行半刚性连接。为研究该新型半刚性节点在强轴连接方向的抗震性能,设计了4个节点,对不同端板厚度及轴压比的节点进行低周反复加载试验,得到了试件的破坏模式、滞回曲线、转动刚度等性质。随后,利用ABAQUS软件建立了试件的数值模型,通过试验结果和数值计算结果的对比,验证了数值模型的准确性。
In support of prefabricated building applications, this study introduces a novel semi-rigid connection for H-shaped steel columns using cover plates. This design facilitates semi-rigid joints with beams in both the strong- and weak-axis directions. To evaluate its seismic performance along the strong axis, four specimens with varying end-plate thicknesses and axial compression ratios were tested under low-cycle reversed loading. The failure modes, hysteretic curves, and rotational stiffness were analyzed. Furthermore, numerical models were developed in ABAQUS and validated against the experimental results.
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