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结合我国现行的结构设计规范,对承受多工况荷载下的钢筋混凝土框架(RC)结构离散变量的优化设计问题,提出了一种基于模拟退火算法的优化算法。通过建立配筋模板数据库,将梁柱的计算配筋面积转换成最优的且满足规范和施工要求的实际配筋形式。在模拟退火算法中提出了自适应设计域技术,提高了算法的效率。将上述优化算法在大型有限元软件ANSYS和建筑结构设计专用软件SATWE软件上进行了程序实现。对一个15层的结构进行了优化设计,结果表明本文提出的方法是有效的和可操作的。
Combined with the current structural design codes in our country, an optimization algorithm based on simulated annealing algorithm is proposed for the optimal design of discrete variables of reinforced concrete frame (RC) under multi-load conditions. Through the establishment of the reinforcement template database, the calculated reinforcement area of beam and column is converted to the actual form of reinforcement which is optimal and meets the specifications and construction requirements. In the simulated annealing algorithm, adaptive design domain technology is proposed to improve the efficiency of the algorithm. The above optimization algorithm is implemented on the large-scale finite element software ANSYS and the software for building structure design SATWE. The optimal design of a 15-layer structure shows that the proposed method is effective and feasible.