大跨箱梁抗裂混凝土配合比优化设计  

Mix Design Method Based on Crack Resistance for Large-span Concrete Box Girder

作　　者：景强[1] 丁庆军[2] 高纪宏[2] 

机构地区：[1]长安大学公路学院,西安710064 [2]武汉理工大学硅酸盐材料工程教育部重点实验室,武汉430070

出　　处：《武汉理工大学学报》2008年第4期32-35,共4页Journal of Wuhan University of Technology

基　　金：广东省交通厅科技项目(2006-02)

摘　　要：基于箱梁混凝土的抗裂性,提出了新的大跨径箱梁混凝土配合比优化设计方法。其中借助先进的试验手段单轴温度-应力开裂试验机和大型有限元分析软件ANSYS,配制出了抗裂性能良好的混凝土,并在实际工程得到了有效应用。Using crack resistance as a main design target,a new mix design method for large-span concrete box girder was put forward.In this design,the advanced experiment means uniaxial restrained and adjusted temperature-stress testing machine and large finite element analyse software ANSYS were adopted.The concrete with the mix design proposed based on this design method of high crack resistance has been confirmed by the application in projects.So this method would be good at the value of extension and application.

关 键 词：抗裂 配合比 设计方法 大跨径箱梁 

分 类 号：U444[建筑科学—桥梁与隧道工程]