水泥砼双向拉伸弱化特性与路面板厚度设计验算标准  

Biaxial Tensile Weakening of Portland Cement Concrete and Thickness Design Standard of Pavement Slabs

作　　者：陈积光[1] 任家陶[1] 黄立葵[2] 赖伟栋[3] 陈健[3] 李冈陵[3] 

机构地区：[1]湖南理工学院土建系,湖南岳阳414000 [2]湖南大学土木工程学院,湖南长沙410082 [3]华南理工大学,广东广州510640

出　　处：《中南公路工程》2004年第4期56-58,共3页Central South Highway Engineering

摘　　要：介绍了"砼双向拉伸强度的研究近况及研究结果,即砼的双向拉伸强度比其单向拉伸强度弱化15%～30%"。对建立以砼双向拉伸强度为准则的砼路面板设计方法具有参考价值。This paper introduces recent studies on biaxial tensile strength of portland cement concrete, which indicate that the biaxial tensile strength is 15%～30% lower than the uniaxial tensile strength. Results of the studies should serve as valuable references for the establishment of thickness design method of concrete pavement slabs with considerations of biaxial tensile effects.

关 键 词：面板厚度 砼路面 水泥砼 验算 强度比 弱化 准则 双向拉伸 

分 类 号：U416[交通运输工程—道路与铁道工程]