| 承受弯矩大直径空间相贯节点足尺模型试验与设计研究 |
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| 引用本文： | 刘鑫刚,葛家琪,张国军,王树,王耀峰,赵雅.承受弯矩大直径空间相贯节点足尺模型试验与设计研究[J].建筑结构,2010(12). |
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| 作者姓名： | 刘鑫刚 葛家琪 张国军 王树 王耀峰 赵雅 |
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| 作者单位： | 中国航空规划建设发展有限公司;北京交通大学; |
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| 基金项目： | 贵州省科技厅工业攻关项目([2010]3002); 贵阳市科技局工业攻关项目[2010] |
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| 摘 要： | 结合贵阳奥体中心主体育场钢结构工程,对承受弯矩的大直径钢管相贯节点进行了足尺模型极限承载力破坏试验。对节点试验过程和破坏现象进行了深入研究,分析了各加载阶段相贯节点的应力分布情况及整个加载过程塑性区的发展过程,结合有限元分析对空间相贯节点破坏机理进行分析研究,得出了此类节点的破坏模式,并对该类型钢管相贯节点破坏判定准则进行探讨。通过模型试验来研究承受弯矩大直径相贯节点的设计承载力,并分别与规范计算结果和有限元计算结果进行对比分析,提出设计建议,为有关规范的修改及工程设计提供参考。应用有限元计算方法研究腹杆偏心产生弯矩对空间相贯节点承载力的影响,对工程实际中经常发生的施工偏差情况下节点的安全性判断提出了建议。
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| 关 键 词： | 节点试验 空间相贯节点 破坏准则 弹塑性有限元分析 弯矩 |
Full-scale model experiment and research of large diameter steel tubular spatial penetrated joint subject to moment |
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| Liu Xingang,Ge Jiaqi,Zhang Guojun,Wang Shu,Wang Yaofeng,Zhao Ya.Full-scale model experiment and research of large diameter steel tubular spatial penetrated joint subject to moment[J].Building Structure,2010(12). |
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| Authors: | Liu Xingang Ge Jiaqi Zhang Guojun Wang Shu Wang Yaofeng Zhao Ya |
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| Affiliation: | Liu Xingang1,Ge Jiaqi1,Zhang Guojun1,Wang Shu1,Wang Yaofeng2,Zhao Ya2(1 China Aviation Planning and Construction Development Co.,Ltd.,Beijing 100120,China,2 Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | The damage test of ultimate bearing capacity for the full-scale joint of large diameter penetrated pipes subject to moment was performed for the steel roof of the main stadium in Guiyang Olympic Sports Center.For the sake of further research on test process and damage phenomenon of the joint,both the damage pattern and the damage determination criteria of this type of joint were determined by analyzing the stress distribution of penetrated joint during each loading step and the plastic zone development proc... |
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| Keywords: | joint test spatial penetrated joint damage criteria elasto-plastic finite element analysis moment |
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