华中科技大学学报（自然科学版）2013，Vol.41Issue(7)：10-14,5.
型钢高强混凝土节点核心区模型化方法
Joint core model method of steel reinforced high strength concrete joints
摘要
Abstract
The results from five cyclic loading tests carried out on five steel reinforced high strength concrete (SRHSC) frame interior joints were studied.The shear mechanism of the steel reinforced concrete (SRC) joints was investigated.On the basis of the shear mechanism and deformation characteristics of the joints,the equilibrium and deformation compatibility equations were established.The shear stress-strain relationship of the joint core under monotonic loading was derived,and the program to compute was completed.Computed results were compared with the tested ones.Results indicate that the method proposed can accurately describe the stress-strain relationship of the joint core.The shear mechanism constitutes external compression strut,internal compression strut and steel web in terms of steel reinforced high strength concrete joint core.It is noticed that the brittleness of high strength concrete makes effects on the shear resistance of the joint to some extent,which should be considered in the process of theoretical derivation.关键词
型钢高强混凝土节点/节点核心区/受力机理/剪切应力-应变关系/模型化方法Key words
steel reinforced high strength concrete joint/ joint core/ shear mechanism/ shear stress-strain relationship/ model method分类
建筑与水利引用本文复制引用
商效瑀,郑山锁,韩协,王维..型钢高强混凝土节点核心区模型化方法[J].华中科技大学学报（自然科学版）,2013,41(7):10-14,5.基金项目
国家自然科学基金资助项目(50978218,51108376) （50978218,51108376）
高等学校博士学科点专项科研基金资助项(20106120110003) （20106120110003）
陕西省科技统筹创新工程计划资助项目(2011KTCQ03-05) （2011KTCQ03-05）
陕西省教育厅专项科研项目(2010JK633). （2010JK633）
