摘要
结合工程实例,介绍了预应力筋的理论伸长量计算方法,通过计算预应力筋摩阻损失,确定了非对称布置双端张拉预应力筋应力最小点,解决了该种形式预应力筋理论伸长量计算问题。
Combining with engineering example, the paper introduces elongation calculating method of asymmetric prestressed tensioning theory. Through calculating prestressed reinforced friction resistance loss, it determines the minimum double-end prestressed reinforced stress point with asymmetric allocation, and solves its prestressed reinforced theory elongation calculating problem.
出处
《山西建筑》
2017年第14期169-170,共2页
Shanxi Architecture
关键词
跨线桥
预应力
伸长量
摩阻力
overpass bridge, prestress, elongation, friction resistance
