基于遗传算法的钢筋混凝土梁优化设计

针对传统结构设计中存在的问题,提出了用遗传算法对建筑工程中常用的钢筋混凝土梁进行了优化设计的研究。以梁的工程造价为目标函数,建立了满足混凝土结构设计规范中承载力、正常使用和构造要求的优化设计模型,根据模型特点,对遗传算法进行了改进,应用到混凝土梁优化设计中,提高了全局搜索能力,保证能够收敛到最优解。通过实例分析,结果表明,能够很快地收敛到最优解,应用到工程能够大大地降低成本。

The Optimization of Reinforced Concrete Beams with Genetic Algorithm

According to the problem existed in the design of the traditional structure,a genetic algorithm is proved to optimize the reinforced concrete beams.Selecting the cost as the objective function,the model of beam sturcture is established to meet the design priciple of concrete structures and the normal use construction.An improved genetic algorithm applied to optimal design of concrete beams has the better global search ability,guaranteed to converge to the optimal solution.Through case studies,the results show that the method can quickly converge to the optimal solution,applied to the project can greatly reduce costs.