无粘结后张拉预制剪力墙自动优化设计方法研究

Automatic Optimization Design Method of Unbonded Post-tensioned Precast Shear Wall

针对无粘结后张拉预制剪力墙体系,传统手工试算求解后张拉预应力筋与耗能键的最优组合值的方法过于冗长复杂的问题。在保证剪力墙弯矩承载力与设计弯矩相等且结构无残余变形的前提下,基于遗传算法开发了一种优化设计方法,运用Matlab编制了该优化设计方法自动求解程序。该方法能快速得出最优设计解,与现有的设计方法相比,证明该方法可行且更加高效。

An optimization design method was developed based on a single objective genetic algorithm for the unbonded post-tensioned precast shear wall system.MATLAB programmed the automatic solution program of the optimization design method.The design concept was on the premise that the moment bearing capacity of the shear wall is equal to the design bending moment and there is no residual deformation in the structure,the optimal combination value of post-tensioned prestressed reinforcement and energy dissipation key is found.The results show that this method can quickly get the optimal design solution,which is more accurate and efficient than the existing design methods.