异型钢管柱模块间连接节点抗震性能分析

周威波; 王燕; 王杰; 安琦

doi:10.13206/j.gjgS24073001

异型钢管柱模块间连接节点抗震性能分析

doi: 10.13206/j.gjgS24073001

青岛理工大学土木工程学院, 山东青岛 266520

基金项目:

国家自然科学基金项目（52078258，52208175）。

详细信息

作者简介:
周威波，硕士研究生，主要从事钢结构设计理论研究。

通讯作者:
王燕，博士，教授，yanwang2010803@163.com。

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出版历程
- 收稿日期: 2024-07-30
- 网络出版日期: 2025-07-09

Seismic Performance Analysis of Connection Joints Between Modules of Special-Shaped Steel Tubular Columns

School of Civil Engineering, Qingdao University of Technology, Qingdao 266520, China

摘要

摘要: 为满足钢结构模块化建筑使用功能需求及提升建筑装配率，提出一种异型钢管柱模块间连接节点。该节点采用对拉螺栓装配式连接，柱子采用L形的异型钢管柱并设计柱截面厚度与墙体等厚，可避免柱角外露并满足建筑使用功能需求。运用ABAQUS有限元软件建立改变节点参数的精细化有限元计算模型并对其进行单调及低周往复加载，分析了节点破坏模式、滞回曲线、骨架曲线、应力路径及耗能能力等。结果表明：异型钢管柱模块间连接节点的破坏模式以梁受弯破坏为主，符合“强柱弱梁”设计理念，滞回曲线呈饱满梭形，层间极限转角及延性系数分别大于0.03 rad和5.0，满足节点抗震设计要求；节点域加强角钢可有效改善柱壁螺栓孔附近的应力状态；增加竖向十字连接键厚度可提升节点耗能能力。根据节点传力机理及变形机制，采用叠加法计算节点核心区域剪切变形，推导了初始转动刚度理论计算式，并将理论计算结果与有限元数值模拟结果进行对比验证，两者具有较好的一致性。
- 模块间连接节点 /
- 异型钢管柱 /
- 竖向十字连接键 /
- 节点域加强角钢
Abstract: To meet the functional requirements of steel structure modular buildings and improve the construction assembly ratio， a connection joint between modules of special-shaped steel tubular columns is proposed. This joint adopts a through-bolt assembly connection， with L-shaped special-shaped steel tubular columns used as the columns， and the designed column section has the same thickness as the wall， which avoids exposure of the column corners and meets the functional requirements of the building. The ABAQUS finite element software was used to establish a refined finite element model with varying joint parameters， and to perform monotonic and low-cycle cyclic loading on it. A comparative analysis was conducted on the bearing capacity and seismic performance indicators such as joint failure modes， hysteresis curves， skeleton curves， stress paths， and energy dissipation capabilities. The research results showed that the failure mode of the connection joint between the special-shaped steel tubular column modules was dominated by bending failure of the beam， which conformed to the design concept of "strong columns and weak beams." The hysteresis curve presented a full shuttle shape， with the ultimate inter-story rotation angle and ductility coefficient exceeding 0.03 rad and 5.0， respectively， meeting the seismic design requirements for the joint. Reinforcing the angle steel in the panel zone effectively improved the stress state near the bolt holes in the column wall. Increasing the thickness of the vertical cross-shaped connection keys enhanced the energy dissipation capacity of the joint. Based on the force transmission mechanism and deformation mechanism of the joint， the superposition method was used to calculate the shear deformation in the core area of the joint. A theoretical formula for the initial rotational stiffness was derived and verified with finite element numerical simulation results. The research results indicated that the theoretical calculation formula for the initial rotational stiffness achieved good consistency with the finite element calculation results.
- connection joints between modules /
- special-shaped steel tubular columns /
- vertical cross connection keys /
- reinforced angle steel in panel zone

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