预应力砼连续梁体系自动配束  

Automatic Distribution Of Steel Bunches OfPrestressed Concrete Continuous Beam System

作　　者：于向东[1] 裘伯永[1] 

机构地区：[1]长沙铁道学院土建院,长沙410075

出　　处：《长沙铁道学院学报》1998年第3期21-24,共4页Journal of Changsha Railway University

基　　金：铁道剖科技司项目

摘　　要：本文研究预应力砼连续梁体系自动配束问题,导出了适合于多跨连续梁任意体系转换型式的自动布束的力学方程.并对某三跨连续梁进行了计算,结果表明:采用本论文的调束方法,调束一次完成,不用考虑由于结构体系转换产生的徐变次内力及在超静定结构施加预加力产生的次内力.<ABSTRACT> This paper mainly probes the automatic distribution of steel bunches of pre-stressed concrete continuous beam system and infers the mechanic equations of the automatic distribution of steel bunches applied in random system trans-fermation of multi-span continuous beam. Calculation is made of three-span prestressed concrete continuous beam, Whose result shows that the adjustment of steel bunches can be completed once and for all by employing the above method without the consideration of creep secondary internal forces caused by system transformation and secondary internal forces caused by exerted indeterminate structure.

关 键 词：预应力混凝土 次内力 桥梁 连续梁 配束 

分 类 号：U448.215[建筑科学—桥梁与隧道工程] U448.35[交通运输工程—道路与铁道工程]