| K型钢管混凝土节点疲劳性能试验研究 |
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| 引用本文： | 钟新谷,杨胜,石卫华. K型钢管混凝土节点疲劳性能试验研究[J]. 中国工程科学, 2011, 13(9): 97-100 |
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| 作者姓名： | 钟新谷 杨胜 石卫华 |
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| 作者单位： | 湖南科技大学, 湖南湘潭411201;湖南科技大学, 湖南湘潭411201;湖南科技大学, 湖南湘潭411201 |
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| 摘 要： | 以湘潭四大桥桁架拱为工程背景,进行了三种规格的K型钢管混凝土节点的疲劳试验,基于热点应力计算了K型钢管混凝土节点的疲劳荷载幅值,表明热点应力法能够较好地评估钢管混凝土节点的疲劳寿命;试验表明K型钢管混凝土节点的疲劳性能明显优于K型钢管节点。在此基础上初步提出了K型钢管混凝土节点的S—N曲线,对建立K型钢管混凝土节点疲劳寿命设计准则具有一定的参考意义。
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| 关 键 词： | K型钢管混凝土节点 疲劳性能 S—N曲线 |
| 收稿时间： | 2009-12-02 |
| 修稿时间： | 2010-01-07 |
Experiment study on fatigue property of concrete filled steel pipe K-joints |
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| Zhong Xingu,Yang Sheng and Shi Weihua. Experiment study on fatigue property of concrete filled steel pipe K-joints[J]. Engineering Science, 2011, 13(9): 97-100 |
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| Authors: | Zhong Xingu Yang Sheng Shi Weihua |
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| Affiliation: | Zhong Xingu,Yang Sheng,Shi Weihua(Hunan University of Science and Technology,Xiangtan,Hunan 411201,China) |
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| Abstract: | Based on the truss arch of Xiangtan 4th Bridge,we made fatigue property test on concrete filled steel pipe K-joints of three different specifications,and calculated the amplitude of fatigue load of concrete filled steel pipe K-joints with hot-spot stress approach in this paper,which presented that hot-spot stress approach can be used to assess fatigue life of concrete filled steel pipe,and fatigue property of concrete filled steel pipe K-joints was obviously better than that of steel pipe K-joints.Moreover,... |
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| Keywords: | concrete filled steel pipe K-joints fatigue property S—N curve |
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