建筑结构

2008, No.298(10) 66-67+92

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后张预应力混凝土框架梁刚接端截面配筋限值的研究
Research on limit amounts of reinforcement and prestressed tendon on the rigid support section of post-tensioned concrete frame beams

潘立;
Pan li(Institute of Building Structures,China Academy of Building Research,Beijing 100013,China)

摘要(Abstract):

依据《混凝土结构设计规范》(GB50010—2002)、《建筑抗震设计规范》(GB50011—2001)和《预应力混凝土结构抗震设计规程》(JGJ140—2004)的相关规定,对后张预应力混凝土框架梁刚接端截面受压区非预应力筋的最小与最大配筋率、受拉区预应力筋的构造最小配筋率进行了研究,推导了这些配筋限值的合理表达式,可供预应力混凝土结构设计与软件编程人员参考。
Based on Code for Design of Concrete Structures(GB50010—2002),Code for Seismic Design of Buildings(GB50011—2001), and Specification for Seismic Design of Prestressed Concrete Structures(JGJ140—2004), the minimum and the maximum ratio of reinforcement in pressed region,and the constructive minimum ratio of prestressed tendon in tensioned region on the rigid support section of post-tensioned concrete frame beams are researched,reasonable formulas of determining these limit values are deduced in detail,which can be used by the designer and the programmer for design of prestressed concrete structures.

关键词(KeyWords): 后张预应力;框架梁;截面受压(拉)区;配筋限值;配筋率
post-tensioned;concrete frame beams;pressed/tensioned region;limit amount of reinforcement;ratio of reinforcement

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 潘立;
Pan li(Institute of Building Structures,China Academy of Building Research,Beijing 100013,China)

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DOI: 10.19701/j.jzjg.2008.10.022

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