超高层建筑核心筒超前施工结构性能分析与设计  

Performance analysis and design of built in advance tube of super tall building

作　　者：朱川海 方朔[2] 赵昕[3] 丁鲲[3] 

机构地区：[1]绿地控股集团有限公司,上海200023 [2]同济大学建筑工程系,上海200092 [3]同济大学建筑设计研究院(集团)有限公司,上海200092

出　　处：《建筑结构》2013年第S1期985-990,共6页Building Structure

基　　金：上海市科技攻关计划资助(编号:09dz1207704);上海市青年科技启明星计划(跟踪)资助(编号:11QH1402700)

摘　　要：近年来钢-混凝土混合结构体系在我国超高层建筑中得到广泛应用。框架-核心筒体系的施工流程需要核心筒超前外框架施工。考虑到施工期间结构体系、材料特性和荷载作用的时变性,需要引入施工阶段基于性能的结构设计(PBSD)方法分析与控制处于不同施工阶段的结构状态,解决超高层建筑施工过程分析与控制的问题。本文提出了核心筒超前外框架施工层数的合理分析方法,并在建立的500m基准超高层建筑模型上进行了验证。研究结果表明,基于性能目标对施工阶段核心筒超前施工进行分析是可行有效的,核心筒超前施工是施工阶段需要控制和评估的重要参数。Nowadays the hybrid structural system of steel and concrete is widely applied in super tall buildings. Construction process in construction stage of the frame-tube structure brings about tube stories built in advance. Allowed for time-variant performance of structural system,material property and loading in the construction stage,performance based structural design( PBSD) should be introduced to evaluate and control different structural states of different construction stages to solve problems of evaluation and control. A method to evaluate built in advance tube stories is proposed and a benchmark super tall building of 500m is established to illustrate the application of the proposed new method. The results show that the proposed performance objective based method is feasible and effective. Built in advance of tube needs special consideration and control in construction stage.

关 键 词：超高层建筑 基于性能的结构设计 框架-核心筒结构 超前施工 

分 类 号：TU974[建筑科学—建筑技术科学]