钢筋混凝土筒中筒结构扭转效应计算及模型试验  

Calculation and Model Experiment on Effect of Torsion of R.C.Tube-in-Tube Structures

作　　者：陈伯望[1] 王海波[1] 沈蒲生[1] 

机构地区：[1]湖南大学

出　　处：《结构工程师》2005年第5期36-39,47,共5页Structural Engineers

摘　　要：基于层模型的假定,推导了筒中筒结构外框筒和核心筒的简化抗扭刚度;首次提出了框筒结构的平面外抗扭刚度影响系数的概念,在此基础上提出了筒中筒结构扭转位移的简化计算方法。同时,制作了比例为1/10的14层钢筋混凝土筒中筒模型结构,完成了模型在扭转荷载作用下的静力试验,扭转位移理论计算与实测结果吻合较好。Based on an assumption of story-model, the simplified torsion stiffness of extemal-frame-tube and internal-tube of a tube-in-tube structure are brought out. Effect coefficient on out-of-plane torsion stiffness of frame-tube structure is presented originally and a simple analysis method of torsion deflection of a tube-in-tube structure is developed. In the same time, a 14 stories tube-in-tube model of R.C. structure with a scale of 1 ： 10 has been made and a static experiment of the model subjected to torsion loading has been finished. The calculated torsion deflections of the model are agreed with the results of the test.

关 键 词：筒中筒结构 层模型 扭转效应 简化计算 模型试验 筒中筒结构 钢筋混凝土 扭转位移 模型试验 效应计算 简化计算方法 抗扭刚度 框筒结构 影响系数 

分 类 号：TU973.17[建筑科学—结构工程] TU375