平面KT型圆钢管搭接节点静力性能的试验研究

赵宪忠; 陈誉; 陈以一; 徐祥斌; 许立新

doi:10.13204/j.gyjz201004023

平面KT型圆钢管搭接节点静力性能的试验研究

doi: 10.13204/j.gyjz201004023

1.
1. 同济大学土木工程学院,上海 200092;
2.
2. 华侨大学土木工程学院,福建泉州 362021;
3.
3. 上海宝冶建设有限公司,上海 200941

详细信息

作者简介:
赵宪忠，男，1972年出生，博士，副教授。E－mail:x.zhao@tongji.edu.cn

中图分类号: TU392.3
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- 文章访问数: 118
- HTML全文浏览量: 12
- PDF下载量: 118
- 被引次数: 0
出版历程
- 收稿日期: 2009-08-22
- 刊出日期: 2010-04-20

EXPERIMENTAL STUDY ON STATIC BEHAVIOR OF OVERLAPPED CHS KT-JOINTS

1.
1. College of Civil Engineering,Tongji University,Shanghai 200092,China;
2.
2. College of Civil Engineering,Huaqiao University,Quanzhou 362021,China;
3.
3. Shanghai Baoye Construction Co.Ltd,Shanghai 200941,China

摘要

摘要: 通过对3个平面KT型圆钢管搭接节点的静力单调加载试验，考察节点中内隐蔽部分焊接与否、腹杆搭接顺序等对KT型搭接节点的受力性能和破坏模式的影响，并最终考察其节点承载力。试验结果表明，平面KT型圆钢管搭接节点的受力性能、破坏模式均与间隙节点有所不同；隐蔽部分未焊接较隐蔽部分焊接的节点承载力有一定降低；受压斜腹杆作为贯通腹杆较直腹杆作为贯通腹杆的承载力略有降低。
- KT型圆钢管搭接节点 /
- 内隐蔽焊缝 /
- 破坏模式 /
- 极限承载力
Abstract: To investigate how the welding situations of hidden seam and the loading hierarchy reversal of braces affect the structural performance of unstiffened overlapped circular hollow steel (CHS) KT-joints,three specimens were tested under monotonic loading. The test results show that: the mechanical behavior and failure mechanism of the overlapped KT-joints are different from that of simple gap KT-joints; the unwelded situation of hidden seam will decrease the ultimate capacity of KT-joints; the overlapped KT-joint with inclined compressive brace as through web member has lower load-carrying capacity compared with joint using vertical brace as through web member.
- overlapped CHS KT-joints /
- hidden welded seam /
- failure mode /
- ultimate bearing capacity

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参考文献(7)

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[3] Wilmshurst S R,Morita M,Makino Y,et al. Static Strength Tests of CHS KT-Joints Under Axial Loading[C]/ /Proceeding of the 8th International Symposium on Tubular Structures. Singapore: 1998.

[4] 舒兴平,郑伯兴. KT 型相贯节点极限承载力非线性有限元分析[J]. 湖南大学学报,2006,33(6) :1-5.

[5] 赵宪忠,陈誉,陈以一,等. 平面K 型圆钢管搭接节点静力性能的试验研究[J]. 建筑结构学报,2006,27(4) :23-36.

[6] British Standard. Eurocode 3: Design of Steel Structures[S]. part 1-8: Design of Joints,BS EN1993-1-8:2005.

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