后张预应力锚索孔道摩阻系数测试方法  

Test method of friction coefficient in post-tensioned cable hole

作　　者：符志远[1] 张传健[1] 

机构地区：[1]长江水利委员会设计院,湖北武汉430010

出　　处：《人民长江》2009年第17期48-51,共4页Yangtze River

摘　　要：在曲线型预应力钢筋混凝土结构中,预应力筋与孔道的摩擦系数和锚索安装的局部偏差影响系数是预应力结构设计中的重要参数,其测试结果的准确性直接影响工程结构的安全。结合曲线锚索预应力计算方法,提出局部偏差影响系数、摩阻系数的测试方法。该测试方法已应用于东深供水改造工程渡槽预应力结构试验和南水北调中线穿黄隧洞1∶1仿真试验,可供工程参考应用。In curve-type prestressed reinforcement concrete structure,friction coefficient between prestressed steel and hole wall and local deviation influence coefficient of cable installation are important parameters for prestressed structure design,the correctness of test result directly influences the safety of engineering structure.In the combination of prestress calculation method of curve anchor cable,this paper puts forward test method for local deviation influence coefficient and friction coefficient.This method had been used in prestressed structure test of aqueduct of Dongjiang-Shenzhen water supply renovation works and 1∶1 simulation test of the Yellow River tunnel passing works of the Middle Route Project of South-to-North Water Diversion.

关 键 词：后张预应力 锚索 孔道摩阻 测试方法 

分 类 号：TV431[水利工程—水工结构工程]