| 铁路连续复合刚构桥墩梁刚性节点的受力分析 |
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| 引用本文： | 宋晓宇,白玲.铁路连续复合刚构桥墩梁刚性节点的受力分析[J].北京交通大学学报(自然科学版),2011,35(3). |
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| 作者姓名： | 宋晓宇 白玲 |
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| 作者单位： | 北京交通大学基建处,北京,100044;中国铁道科学研究院铁道科学技术研究发展中心,北京,100081 |
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| 摘 要： | 连续复合刚构桥墩梁刚性节点受力复杂,本文以工字型钢连续组合梁+RC桥墩的刚接接头为例,应用大型通用有限元软件MSC.Nastran进行3D-FEM分析,研究了其传力特性,重点探讨了剪力键传力机制.通过对连续复合刚构桥主梁(工字型钢主梁的组合梁)与RC桥墩刚性连接构造细节的3D-FEM分析,探讨了刚性节点的传力机制,重点是剪力键所承担的剪力分布.分析结果表明,墩梁刚性节点采用剪力键连接方式可以有效的传递内力,而且节点的施工性能得到极大改善.研究成果有利于组合刚构桥的设计和应用.
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| 关 键 词： | 复合钢构桥 刚性节点 TBL剪力键 剪力分布 |
Mechanical characteristics analysis of pier-girder rigid node of continuous hybrid rigid frame railway bridge |
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| SONG Xiaoyu,BAI Ling.Mechanical characteristics analysis of pier-girder rigid node of continuous hybrid rigid frame railway bridge[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2011,35(3). |
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| Authors: | SONG Xiaoyu BAI Ling |
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| Institution: | SONG Xiaoyu1,BAI Ling2(1.Infrastructure Department,Beijing Jiaotong University,Beijing 100044,China,2.Railway Science and Technology Research and Development Center,China Academy of Railway Sciences,Beijing 100081,China) |
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| Abstract: | The mechanical behavior and force transmission of the rigid node connecting RC pier and main girder of the hybrid rigid frame bridge is very complicated and difficult to find out.Here the structural detail on a continuous rigid frame railway bridge is given.The bridge has RC pier and composite main girder,which has two steel I-girders and a concrete deck.By the mechanical analysis of the piergirder rigid node of the bridge,the internal force transmission mechanism is discussed and the emphasis is laid on th... |
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| Keywords: | hybrid structure bridge rigid node frame shear connector(TBL) shear force distribution |
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