箱形柱芯筒式双法兰连接平面框架参数化分析

张爱林; 陈嘉伟; 张艳霞; 刘安然; 倪宇博

doi:10.13206/j.gjgS24060101

箱形柱芯筒式双法兰连接平面框架参数化分析

doi: 10.13206/j.gjgS24060101

1. 北京建筑大学土木与交通工程学院, 北京 100044;
2. 北京建筑大学, 北京未来城市设计高精尖创新中心, 北京 100044;
3. 北京工业大学, 北京市高层和大跨度预应力钢结构工程技术研究中心, 北京 100124

详细信息

作者简介:
张爱林，教授，博士生导师，主要从事装配式钢结构方面的研究。Email:zhangal@bjut.edu.cn

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出版历程
- 收稿日期: 2024-06-01
- 网络出版日期: 2025-11-05
- 刊出日期: 2025-09-22

Parametric Analysis of Planar Frames with Box-Column Core-Barrel Double-Flange Joints

1. School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
2. Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
3. Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structure, Beijing University of Technology, Beijing 100124, China

摘要

摘要: 基于带有箱形柱芯筒式双法兰连接节点的平面框架拟静力试验，通过大型通用有限元软件ABAQUS对该试验进行数值模拟，完成芯筒式双法兰连接平面框架试验与数值模拟的滞回曲线、刚度退化以及应力与应变的双向验证，水平承载力平均相差4.87%，刚度退化曲线平均相差6.96%，即试验与模拟模型结果较为接近。进而与焊接框架有限元模型进行双法兰节点刚性性能分析。在保证试验与数值模拟的前提下，进一步完成平面框架的参数化分析，建立了一组共5个平面框架的数值模型，研究芯筒长度对双法兰连接节点及平面框架滞回性能、应力与应变等的影响。结果表明：提高芯筒长度能够显著提高框架的极限抗弯承载力。芯筒式双法兰连接节点框架具有与传统焊接框架一致的力学性能，在结构计算时该节点连接方式可按刚接计算并可为装配式柱-柱连接节点设计提供借鉴。
- 刚性性能 /
- 箱形柱 /
- 双法兰 /
- 芯筒 /
- 参数化分析
Abstract: Based on the proposed static test of a plane frame with box-column core-barrel double-flange joints， a numerical simulation of the test was carried out using the large-scale general-purpose finite element software ABAQUS. The hysteresis curves， stiffness degradation， and stress-strain relationships of the plane frame with core-barrel double-flange joints were validated bidirectionally between the test and the numerical simulation. The average difference in the horizontal bearing capacity was 4.87%， and the average difference in the stiffness degradation curves was 6.96%， indicating that the test results were in good agreement with the simulation results. Subsequently， a stiffness analysis of the double-flange joint was conducted by comparing it with a finite element model of a welded frame. Under the premise of ensuring consistency between the test and numerical simulation， a parametric analysis of the plane frame was further carried out. A total of five numerical models of the plane frame were established to investigate the influence of core-barrel length on the hysteretic behavior， stress， strain， and other performance aspects of the double-flange joint and the plane frame. The results showed that increasing the core-barrel length significantly enhanced the ultimate bending capacity of the frame. The frame with core-barrel double-flange joints exhibited the same mechanical properties as the traditional welded frames. In structural calculations， this type of joint can be treated as a rigid connection， providing a reference for the design of prefabricated column-to-column joints.
- stiffness /
- box column /
- double flange /
- core-barrel /
- parametric analysis

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