环板加劲管板节点力学性能及失效准则研究

袁俊; 屈讼昭; 王虎长; 卫思彤; 孙清

doi:10.13204/j.gyjzG21083107

环板加劲管板节点力学性能及失效准则研究

doi: 10.13204/j.gyjzG21083107

1. 中国电力工程顾问集团西北电力设计院有限公司, 西安 710075;
2. 河南城建学院土木与交通工程学院, 河南平顶山 467036;
3. 西安交通大学人居环境与建筑工程学院, 西安 710049

基金项目:

中国能源建设集团规划设计有限公司科技项目(GSKJ2-T07-2019)；国家自然科学基金资助项目(51978570)。

详细信息

作者简介:
袁俊,男,1983年出生,高级工程师。

通讯作者:
孙清,男,教授,sunq@mail.xjtu.edu.cn。

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- 文章访问数: 89
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- 被引次数: 4
出版历程
- 收稿日期: 2021-08-31

Research on Mechanical Properties and Failure Criteria of Ring-Stiffened Tube-Gusset Plate Joints

1. Northwest Electric Power Design Institute Co., Ltd., of China Power Engineering Consulting Group, Xi'an 710075, China;
2. School of Civil and Transportation Engineering, Henan University of Urban Construction, Pingdingshan 467036, China;
3. School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China

摘要

摘要: 对10个环板加劲管板节点进行试验研究和数值分析,研究了环形加劲管板节点在径向荷载作用下的受力性能和失效模式,提出了环板加劲管板节点的失效准则。结果表明:在径向拉力作用下,节点板与加劲环板连接处最终发生断裂破坏,与之相差90°夹角位置处,加劲环板发生局部屈曲;在径向压力作用下,加劲环板发生压屈失效;当节点的变形与主管直径D的比值不大于0.15%时,节点处于弹性;当节点变形与主管直径的比值大于0.15%且小于2.0%时,节点的刚度迅速降低;当节点变形与主管直径比值大于2.0%时,节点已处于塑性且无法继续承载。基于此,提出采用0.02D极限变形准则来确定节点的极限承载力。
- 管板节点 /
- 环板 /
- 受力性能 /
- 失效准则 /
- 极限承载力
Abstract: Experimental and numerical investigation on ten ring-stiffened tube-gusset plate joints (RS-TGP joints) has been carried out. The mechanical properties and failure mode of RS-TGP joints under radial tension/compressive were studied. The failure criteria of RS-TGP joints were proposed. The failure mode of the RS-TGP joints under tension performed as tensile broken at the intersection of the gusset plate and ring stiffener while buckling of the ring stiffener at the location perpendicular to the loading direction. The failure mode of the RS-TGP joints under compressive was bulking of the ring stiffener. It was found that the RS-TGP joint was elastic when the ratio of joint deformation to chord diameter was less than or equal to 0.15%. However, the stiffness of the joint decreased rapidly as the ratio of the joint deformation to the chord diameter was greater than 0.15% and less than 2.0%. When the ratio of joint deformation to chord diameter was larger than 2.0%, the RS-TGP joint was in a plastic state and unable to carry the load. Thus, the ultimate bearing capality of the joint was determined by the failure criterion of the 2%D limit.
- tube-gusset plate joint /
- ring stiffener /
- mechanical property /
- failure criterion /
- ultimate bearing capacity

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参考文献(27)

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环板加劲管板节点力学性能及失效准则研究

doi: 10.13204/j.gyjzG21083107

作者简介:
袁俊,男,1983年出生,高级工程师。

通讯作者:
孙清,男,教授,sunq@mail.xjtu.edu.cn。

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Research on Mechanical Properties and Failure Criteria of Ring-Stiffened Tube-Gusset Plate Joints

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环板加劲管板节点力学性能及失效准则研究

doi: 10.13204/j.gyjzG21083107

作者简介: 袁俊,男,1983年出生,高级工程师。

通讯作者: 孙清,男,教授,sunq@mail.xjtu.edu.cn。

计量

出版历程

Research on Mechanical Properties and Failure Criteria of Ring-Stiffened Tube-Gusset Plate Joints

期刊类型引用(2)

其他类型引用(2)

计量

出版历程

目录

期刊在线

作者中心

友情链接

作者简介:
袁俊,男,1983年出生,高级工程师。

通讯作者:
孙清,男,教授,sunq@mail.xjtu.edu.cn。