摘要
文章依托江苏省如皋市长青沙二桥(斜拉桥)工程项目,通过预应力张拉试验,现场实测了U形预应力筋的摩阻损失,并采用最小二乘法拟合求得孔道摩阻系数和偏差系数,验证了此种预应力结构的合理性。
Relying on Changqingsha II Bridge（cable-stayed bridge）engineering project in Rugao City,Jiangsu Province,through the prestressed tension test,the article measured the actual friction loss of U-shaped prestress tendons, used the least square fitting to obtain the pore friction coefficient and the variation coefficient,and verified the rationality of such prestressed structures.
出处
《西部交通科技》
2013年第4期43-49,共7页
Western China Communications Science & Technology
关键词
斜拉桥
摩阻损失
预应力张拉试验
Cable-stayed bddge
Friction loss
Prestressed tension test
