采用AHP法优选厂房屋盖网架结构方案的研究

Optimization of Space Truss Form by AHP

屋盖网架结构选型在一定程度上属决策行为,因而不可避免地存在人为主观因素的影响.传统的做法是选择几种不同型式的网架和屋面荷载等进行结构分析,然后通过技术经济的比较来选定方案.这种方法,需要花费较长的时间和较多的人力,且很难对每一种网架型式都进行比较,也很难广泛听取专家的意见.有鉴于此,我们进行了采用AHP法优选厂房屋盖网架结构方案的研究,结果表明:该法不仅可以克服传统方法的一些缺点,而且可以反映出各方案的优先次序以及各方案的排序权值,具有省时、省力、适用的特点.

Traditionally, we determine the space truss form by analysing the several forms of space truss and their technical and ecnomic indexes. Usually, the process costs much time and we need do a lot of work. But by AHP (Analytic Hierachy Process), selecting form of space truss can be convenient by consulting specialists and simple mathematical processing and results in not only the optimum space truss form but also the weight values of space truss forms. Therefore, it's a vey useful means for us to do such kinds of works in the feasible studies.