CFRP索悬挂建筑结构试点工程的设计与分析  

Design and Analysis on the Pilot Project of CFRP Cable Suspended Structure

作　　者：蔡文华[1,2] 郁步军[1] 张继文[2] 梁书亭[2] 涂永明[2] 

机构地区：[1]盐城工学院土木学院,江苏盐城224051 [2]东南大学混凝土及预应力混凝土结构教育部重点实验室,江苏南京210096

出　　处：《建筑科学》2015年第7期46-51,共6页Building Science

基　　金：863计划项目资助(2008AA030704;2008AA032550)

摘　　要：悬挂建筑结构具有良好的抗震、抗风性能,但作为其主要受力部件的钢索,则常易出现锈蚀、疲劳等问题,为此,将高强CFRP筋制成索代替预应力钢筋用于悬挂建筑结构,设计了一幢全CFRP索悬挂建筑结构,并对其进行静力、自振特性以及地震反应分析。研究表明,本文所设计的CFRP索悬挂建筑结构成形状态合理,对称吊点处CFRP索索力相同;悬挂大梁和核心柱均在永久荷载起控制作用时,受力最为不利,但结构中所有梁、柱均满足极限承载能力和正常使用要求;核心柱与悬挂楼层之间设置不同的连接方式对结构的各阶频率影响较大。本文所做工作为此类结构的设计、受力分析提供参考。Suspended structure has a good seismic and wind performance,but as its main force components,the cable is often prone to corrosion and fatigue etc. In order to solve these problems,high-strength CFRP tendons instead of prestressing steel are made of rope used in suspended structure. A whole CFRP cable suspended structure is designed,and then the static force,vibration characteristics and seismic response are analyzed. The results show that the forming state of CFRP cable suspended structure is reasonable,the cable force of symmetrical hanging point is same. The hanging girders and core columns are both in the most disadvantage when the permanent load plays the control action,but they meet the limits of carrying capacity and normal use. The different connection between the core columns and the suspension floors has a greater impact on each frequency. The present work may provide reference for the design and stress analysis of this kind of structures.

关 键 词：CFRP索 悬挂建筑结构 静力分析 自振特性 地震反应 

分 类 号：TU351[建筑科学—结构工程]