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《中国工程科学》 >> 2008年 第10卷 第10期

拉压杆模型在混凝土梁桥中应用与研究进展

东南大学混凝土及预应力混凝土结构教育部重点实验室,南京 210096

资助项目 :国家自然科学基金资助项目(50778038);教育部博士点基金项目(20070286097) 收稿日期: 2008-06-30 发布日期: 2008-10-13

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摘要

在介绍拉压杆模型的概念和构形的基础上,讨论了混凝土梁桥中的常见D区和拉压杆模型的应用原理和构建准则,给出了应用该方法进行结构D区设计的一般步骤,作为示例,应用拉压杆模型方法并参照美国AASHTO LRFD(2004)规范,对一较典型的预应力齿板锚固区进行了配筋设计。阐述了拉压杆模型的起源、研究现状与进展,概括分析了当前国际上的研究动态和有待深化研究的方向。

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