Study of optimum scheme in hoisting large-scale reinforced concrete long post
In order to solve the problem of hoisting large-scale reinforced concrete long post, during the construction of power plants or industrial buildings, an optimum hoisting scheme is studied, and the corresponding computer program is compiled. Mathematical models for the internal forces of double-crane and double-rope system are established. The lifting-point positions are taken as design variables. The objective function is to minimize the maximum moment in the process of hoisting long posts. The constraints are imposed by the penalty strategy. And get the optimization solution through grid method and genetic algorithm. The best rope system is determined by comparing the computational results of initial rope systems under respective best liftingpoints. In the end, the correction and efficiency of the scheme are proved by a calculation example. The results indicate that the peak of maximum moment is decreased by about 30％ through choosing the optimum rope system, lifting-points and rope length.
hoisting reinforced conrete long post optimum rope system genetic algorithm
Wei Kong Hai Du
College of Civil Engineering, Northeast Dianli University Northeast Dianli University Jilin, China
国际会议
成都
英文
361-364
2010-06-12（万方平台首次上网日期，不代表论文的发表时间）