作　　者： ; ; ; ;

机构地区： 北京工业大学建筑工程学院

出　　处： 《北京工业大学学报》 2005年第3期272-275,共4页

摘　　要： 针对大跨空间结构方案选型中不确定性信息较多且一般的评价方法又不易将各种不确定性和定量综合指标综合起来评价,往往导致评价结果失真的特点,给出了未确知测度、置信度的概念,建立了基于未确知测度的大跨空间结构选型模型.该模型在处理不确定性影响因素时较模糊数学丢失信息少,更实用、可靠,并得到工程实例验证. Aiming at the characteristic of distortion in the evaluated result because of much unascertanty information and the difficulty to synthesize the unascertanty and fix quantify to evaluate the scheme in the selection of the long-span structure, the unascertained measure model and the incredible degree are discussed and a model of selection of the long-span structural projects based on the unascertained measure is proposed in this paper. The model has more advantage than fuzzy math when disposing unascertained factors, e.g. less data lost and more credible. Finally, an engineering example is discussed by using the proposed model.

关 键 词： 未确知测度 置信度 大跨空间结构 概念设计 结构选型

领　　域： [建筑科学]