Application Analysis of Strengthened Story in Frame-Core Structures  

作　　者：苏原 陈传尧 李黎 

机构地区：[1]School of Civil Engineering and Mechanics,Huazhong University of Science and Technology

出　　处：《Journal of Southwest Jiaotong University(English Edition)》2009年第4期309-313,共5页西南交通大学学报（英文版）

基　　金：The Natural Science Foundation of China(No.50708041)

摘　　要：Lateral deflection formulas are presented for analysis of the strengthened story applied to flame-core structures. For the framecore structures with top outriggers and with middle outriggers, the relationship between stiffness characteristic parameters of frame and outriggers and the top drift of structures under different loads is analyzed. It is indicated that when stiffness characteristic parameter of frame is large, outrigger efficiency for top drift reduction is low, and the mutation of internal forces occurs; when the stiffness characteristic parameter of frame is less than 3, installing the strengthened story is advantageous to frame-core structures.Lateral deflection formulas are presented for analysis of the strengthened story applied to flame-core structures. For the framecore structures with top outriggers and with middle outriggers, the relationship between stiffness characteristic parameters of frame and outriggers and the top drift of structures under different loads is analyzed. It is indicated that when stiffness characteristic parameter of frame is large, outrigger efficiency for top drift reduction is low, and the mutation of internal forces occurs; when the stiffness characteristic parameter of frame is less than 3, installing the strengthened story is advantageous to frame-core structures.

关 键 词：Strengthened story Frame-core structure OUTRIGGER Stiffness characteristic parameters 

分 类 号：TU323.5[建筑科学—结构工程]