PC梁桥预应力管道摩阻试验研究  

Experiment research on prestress tube frictional resistance of PC beam bridge

作　　者：刘三奇[1] 胡成[1] 姜天晓[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,合肥230009

出　　处：《安徽建筑工业学院学报（自然科学版）》2010年第2期34-37,共4页Journal of Anhui Institute of Architecture(Natural Science)

摘　　要：介绍了预应力管道摩阻试验原理和试验方法,采用最小二乘法对某连续箱梁桥现场测试数据进行分析处理,得出了预应力管道偏差系数k和摩擦系数μ值。通过实测钢绞线伸长量对试验结果进行校核,验证了试验方法的可行性。试验结论为施工监控中的应力分析和线形控制提供了可靠的计算参数。This paper describes the principles of prestressed tube friction testing and test method,and then the field test data of a continuous box girder bridge was analyzed and processed,using least-squares method and prestressed tube deviation coefficient and friction coefficient μ,k values were obtained.Finally,the test result was checked by measuring the steel strand elongation and verified that test method is feasible.The conclusion provides a reliable calculation parameters for the stress analysis and linear control during Construction Monitoring.

关 键 词：预应力 摩阻试验 最小二乘法 伸长量 施工监控 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]