后张箱梁预应力摩阻测试方法及卡控要点  

Test Method of Friction for the Post Tensioning Prestressed Concrete Beam and the Key Control Points

作　　者：周子军 ZHOU Zi-jun(The Engineering Quality and Safety Supervision Station,China Railway Corporation,Beijing 100844,China)

机构地区：[1]中国铁路总公司工程质量监督管理局,北京100844

出　　处：《价值工程》2018年第12期131-133,共3页Value Engineering

摘　　要：本文对后张箱梁预应力损失因素进行分析,并对摩阻损失原理、测试方法、数据处理等进行了规范,优化了试验控制相关环节,提出摩阻测试卡控要点,以期提供一种准确测试、计算预应力损失的方法。This paper analyzed the factors of prestress losses,and standardized the friction loss principle,test method and data processing.We also optimized the control experiment and proposed the key control points,in the hope of providing an accurate measurement to calculate prestress loss.

关 键 词：后张梁 预应力损失 摩阻测试 卡控要点 

分 类 号：U448.213[建筑科学—桥梁与隧道工程]