【摘要】 结构选型是结构设计中概念设计阶段最重要的设计决策。在定性和定量两个层面上考察了影响结构选型中经济性、安全性、施工可行性和结构对功能的适用性等因素,采用模糊多属性决策的方法,以欧氏权距离为基础建立目标函数,将不确定的因素、难以量化的因素进行模糊处理,有效地进行多因素的决策。实例选用了7度设防烈度区、Ⅱ类场地上的一栋16层住宅楼,应用多属性决策结果表明选用框架结构最经济,但从多因素综合考虑,框剪结构和剪力墙结构较优。结果表明,提出的方法可以有效处理模糊环境下结构选型中的方案优选决策问题。更多还原

【Abstract】 As the most important design decision during conceptual design of structures, the selection of structural form has the property of soft science.Economics, safeties, feasibility for construction and applicability were considered in natural determined and valuable determined. Based on the Euclid distance, the object function was set up, and the fuzzy multiple attribute decision-making process was utilized to deal with the uncertain information and the difficultly valued information, which solve the multiple attribute problem successfully. As an example, a 16-flores house, which was built atⅡsort of field, resisting the 7 degrees of seismic intensity, was calculated with this method. The results show that the frame structure is the most economical, but the frame-shearwall structure and shear wall structure are more suitable considering more factors. The results indicate that the method can effectively solve the problem of the choice of the optimal form in fuzzy environment.更多还原