| 环口板加强T形管节点抗冲击性能机理研究 |
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| 引用本文： | 李安令,曲慧,霍静思. 环口板加强T形管节点抗冲击性能机理研究[J]. 船舶力学, 2016, 20(4): 469-477. DOI: 10.3969/j.issn.1007-7294.2016.04.011 |
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| 作者姓名： | 李安令 曲慧 霍静思 |
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| 作者单位： | 烟台大学 土木工程学院，山东 烟台 264005;湖南大学 土木工程学院，长沙 410082;烟台大学 土木工程学院,山东 烟台,264005;华侨大学 土木工程学院,福建 厦门,361021 |
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| 基金项目： | 国家青年科学基金项目(51478407);高等学校博士学科点专项科研资助项目(20130161110018);山东省政府资助出国留学项目 |
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| 摘 要： | 为深入研究环口板加强后T形管节点的抗冲击性能，文章采用试验研究和有限元研究相结合的方法，对未加强和环口板加强T形管节点的抗冲击性能进行了比较研究，旨在确定环口板加强节点受冲击后的典型破坏模态；并通过对变形发展、局部变形和整体变形的区分、冲击力-位移关系曲线、能量耗散等分析，揭示环口板加强节点的抗冲击工作机理，研究环口板的局部加强作用，确定环口板加强方式的有效性，可为管结构抗冲击设计和加固维护提供参考。
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| 关 键 词： | 环口板加强T形管节点 冲击 变形区分 能量耗散 抗冲击机理 |
Mechanical mechanism study of collar plate reinforced tubular T-joint under impact loading |
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| LI An-ling,QU Hui,HUO Jing-si. Mechanical mechanism study of collar plate reinforced tubular T-joint under impact loading[J]. Journal of Ship Mechanics, 2016, 20(4): 469-477. DOI: 10.3969/j.issn.1007-7294.2016.04.011 |
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| Authors: | LI An-ling QU Hui HUO Jing-si |
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| Affiliation: | LI An-ling;QU Hui;HUO Jing-si;School of Civil Engineering,Yantai University;College of Civil Engineering,Hunan University;College of Civil Engineering,Huaqiao University; |
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| Abstract: | In order to study the impact behavior of collar plate reinforced tubular T-joint deeply, a com-bined experimental study and finite element analysis is used to compare the impact performance of collar plate reinforced and unreinforced tubular T-joints. The study aims to obtain the typical failure modes of collar plate reinforced and unreinforced tubular T-joints. The mechanical mechanism of collar plate rein-forced tubular T-joint under impact loading is unveiled by investigating the deformation development, divid-ing the local and global deformation, and evaluating impact force versus deformation relationship and dis-sipated energy versus time history curve. The local reinforcement effect of collar plate is verified, which can provide some suggestions to choose relevant reinforced method for design and strengthen the building. |
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| Keywords: | collar plate reinforced tubular T-joint impact division of deformation dissipated energy impact resistant mechanism |
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