附加螺杆的十字形装配式节点抗弯性能研究

张爱林; 步云鹏; 姜子钦

doi:10.13206/j.gjgS25040301

附加螺杆的十字形装配式节点抗弯性能研究

doi: 10.13206/j.gjgS25040301

张爱林^1,2,
步云鹏¹,
姜子钦^1,2, ,

1. 北京工业大学建筑工程学院, 北京 100124;
2. 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

基金项目:

国家自然科学基金项目（52130809）。

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，zhangal@bjut.edu.cn。

通讯作者:
姜子钦，教授，博士生导师，主要从事装配式钢结构方面的研究，jzqbj2010@163.com。

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出版历程
- 收稿日期: 2025-04-03

Research on the Flexural Behavior of Cross-Shaped Prefabricated Joints with Additional Screw Rods

Zhang Ailin^1,2,
Bu Yunpeng¹,
Jiang Ziqin^{1,2
, ,}

1. Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China;
2. Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structure, Beijing University of Technology, Beijing 100124, China

摘要

摘要: 为实现单层网壳和弦支穹顶等大跨度空间结构中杆件的装配式连接，在焊接球节点的基础上提出了一种附加螺杆的十字形装配式节点。节点由焊接球、圆钢管、连接端板、螺杆、T形钢板、角钢连接板和高强螺栓组成。采用ABAQUS软件建立了9个算例对节点的抗弯性能进行参数化分析。首先研究了T形钢板翼缘/腹板厚度、连接板厚度及螺杆直径对节点抗弯性能的影响。结果表明，附加螺杆的十字形装配式节点的抗弯性能良好，T形板翼缘厚度和螺杆直径是影响节点平面内抗弯性能的关键参数，T形板腹板厚度和螺杆直径是影响节点平面外抗弯性能的关键参数。最后基于节点的参数分析结果，提出了节点的承载力和初始刚度的计算方法并进行了验证。结果表明，节点的承载力和初始刚度的计算方法误差均在15%以内，可用于指导节点设计。
- 大跨度空间结构 /
- 装配式节点 /
- 抗弯性能 /
- 节点设计
Abstract: In order to realize the prefabricated joint of members in long-span spatial structures such as single-layer reticulated shells and suspend-domes， a cross-shaped prefabricated joint with additional screw rods is proposed based on welded ball joints. The joint consists of welded balls， circular steel tubes， connecting end plates， screw rods， T-shaped steel plates， angle steel connecting plates， and high-strength bolts. Using ABAQUS software， nine numerical models were established to conduct a parametric analysis of the joint’s flexural behavior. Firstly， the effects of the flange/web thickness of the T-shaped steel plate， the connecting plate thickness， and the screw rod diameter on the flexural behavior of the joint were investigated. The results showed that the cross-shaped prefabricated joint with additional screw rods exhibited satisfactory flexural behavior. The flange thickness and screw rod diameter of the T-shaped steel plate were identified as the key parameters affecting the in-plane flexural behavior， while the web thickness and screw rod diameter were the key parameters affecting the out-of-plane flexural behavior. Finally， based on the parametric analysis results， calculation methods for the bearing capacity and initial stiffness of the joint were proposed and verified. The results indicated that the errors of the proposed calculation methods were within 15%， demonstrating that they can effectively guide the design of the joint.
- long-span spatial structure /
- prefabricated joint /
- flexural behavior /
- joint design

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参考文献(19)

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