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基于多节点微桁架元的薄板锚固区拉压杆模型

仲济涛 刘钊

仲济涛, 刘钊. 基于多节点微桁架元的薄板锚固区拉压杆模型[J]. 力学学报, 2013, 45(4): 629-633. doi: 10.6052/0459-1879-13-030
引用本文: 仲济涛, 刘钊. 基于多节点微桁架元的薄板锚固区拉压杆模型[J]. 力学学报, 2013, 45(4): 629-633. doi: 10.6052/0459-1879-13-030
Zhong Jitao, Liu Zhao. STRUT AND TIE MODEL OF ANCHORAGE ZONE BASED ON MULTI-NODE MICRO TRUSS ELEMENT[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 629-633. doi: 10.6052/0459-1879-13-030
Citation: Zhong Jitao, Liu Zhao. STRUT AND TIE MODEL OF ANCHORAGE ZONE BASED ON MULTI-NODE MICRO TRUSS ELEMENT[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 629-633. doi: 10.6052/0459-1879-13-030

基于多节点微桁架元的薄板锚固区拉压杆模型

doi: 10.6052/0459-1879-13-030
基金项目: 国家自然科学基金资助项目(51278120).
详细信息
    通讯作者:

    仲济涛,主要研究方向:桥梁工程.E-mail:zhongjitao@126.com

  • 中图分类号: U441

STRUT AND TIE MODEL OF ANCHORAGE ZONE BASED ON MULTI-NODE MICRO TRUSS ELEMENT

Funds: The project was supported by the National Natural Science Foundation of China (51278120).
  • 摘要: 目前混凝土桥梁结构D区多依据应力迹线的走向以及应力积分来确定拉压杆模型的基本构形, 模型中杆件 的布置存在一定的困难和随意性.针对此问题, 以后张薄板锚固区为研究对象, 提出一种多尺度分区渐进结构优化算法.首先, 通过一种新的多节点微桁架元构建相应的等效基结构.然后利用此算法对不同偏心锚固力作用下的等效基结构进行分析, 以自动生成锚固区拉压杆模型.最后, 将该拉压杆模型与美国AASHTO桥梁设计规范中推荐的模型进行了对比.研究结果表明:该算法能够定量化确认拉压杆模型中杆件的位置, 特别是拉杆位置与数值分析得到的受拉区合力作用线能较好吻合.

     

  • 刘钊, 吕志涛, 惠卓等. 拉压杆模型在混凝土梁桥中应用与研究进展. 中国工程科学, 2008, 10(10): 14-21 (Liu Zhao, Lü Zhitao, Hui Zhou, et al. Review of application and research of strut and tie models for concrete bridges. Engineering Sciences, 2008, 10(10): 14-21 (in Chinese))
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  • 被引次数: 0
出版历程
  • 收稿日期:  2013-04-17
  • 修回日期:  2013-05-15
  • 刊出日期:  2013-07-18

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