震后钢管混凝土框架结构损伤程度模糊综合评判  

Fuzzy Comprehensive Judgment on Damage Level of Frame Structure of Post-seismic Concrete Filled Steel Tubes

作　　者：刘宁[1] 许成祥[1] 

机构地区：[1]长江大学城市建设学院,湖北荆州434023

出　　处：《长江大学学报（自科版）（上旬）》2013年第5期110-113,1,共4页JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG

基　　金：国家自然科学基金项目(51178057)

摘　　要：钢管混凝土结构的应用前景越来越广阔,针对地震造成的钢管混凝土框架结构损伤,需要建立科学的评判方法。基于模糊数学理论,从构件损伤评判角度出发,以承重构件损伤、连接构件损伤、围护构件损伤为一级评价指标,框架柱、梁、板、填充墙、构件连接节点为二级评价指标,构件位移、裂缝、挠度、变形、松动、混凝土破坏度等外观损伤为三级评价指标,运用层次分析法确定评价因素的权重,并建立了模糊综合评价计算模型。研究表明,运用该模型可以定量计算震后钢管混凝土框架结构损伤程度。The application of concrete filled steel tubular(CFST) structure is more and more wide,scientific method of examination and evaluation of CFST column structure caused by earthquake are needed to be built up.Based on fuzzy mathematical theory,the paper builds the calculation mode of fuzzy comprehensive evaluation in the view of component damage,regarding load-bearing component damage,connecting component damage and enclosed component damage as first class evaluation indexes,frame columns,beams,plates,infilled walls and component connection nodes are taken as second class evaluation indexes and external damage of component displacements,cracks,girder deflection,deformation,loose,concrete damage level and so on are taken as third class evaluation indexes,analytic hierarchical process is used to confirm the weight of evaluation factors.The seismic damage of the frame structure of CFST is quantitatively calculated by applying this model.

关 键 词：钢管混凝土框架结构 模糊数学 层次分析法 

分 类 号：TE398[石油与天然气工程—油气田开发工程]