摘要
以预应力筋张拉伸长值计算基本公式为基础,借助excel,通过求平衡点的方法,计算有特殊线形的钢束伸长值,通过与理论数据比较,此方法准确性已得到验证。另外对现场预应力张拉过程中钢束伸长量的量测方法作了介绍,为类似桥梁预应力施工提供借鉴。
Based on the basic formula for calculating prestressed tendons＇ elongated values and by means of ＇excel＇ to fix the equilibrium point,the values of special linear elongations of steel tendons were comptuted.As compared with theoretical data,the accuracy of this method has been verified.Steel tendon elongation measuring methods during on-site prestressing are also introduced to provide a guidance to similar prestressed bridges
出处
《铁道标准设计》
北大核心
2011年第B12期108-111,共4页
Railway Standard Design
关键词
连续梁
预应力混凝土
预应力筋
张拉
伸长量
计算
Continuous beam
Prestressed concrete
Prestressed tendons
Tension
Elongation
Calculation
