摘要
本文提出斜拉索不变形预张力的概念。以此不变形预张力作为控制变量,建立张拉控制过程的模型,进行张拉控制。文中结合支架法的施工特点,用优化中的求解二次规划的线性互补问题的方法,考虑了施工过程中实际张拉时,主梁和支架逐步脱离接触的情况。结合实例进行研究的结果表明,本方法简单、易行,可使张拉迅速达到设计状态。
In this paper, the concept of the undeformed pretension of cable is intro-duced first. Taking the undeformed pretension as a control variable, a model tosimulate the tension control process is formulated.In construction, that thegirder will gradually separate from the supports is considered by means of thesolution of the problem in optimigation. Study on some practical examples showsthat the present method is both simple and easy to be implemented, leadingthe tension to reach the design state rapidly. The method is also applicable toother construction methods.
出处
《土木工程学报》
EI
CSCD
北大核心
1992年第3期9-15,共7页
China Civil Engineering Journal
