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人民日报社报刊综合业务楼施工模拟分析
何远,孙逊,方立新
摘 要
何远,孙逊,方立新
(东南大学土木工程学院,南京 210096
 
摘要]人民日报社报刊综合业务楼是一体型复杂的高层钢结构建筑,采用钢框架加屈曲约束支撑的结构形式。结构部分关键的竖向构件呈弧形外凸,二阶效应明显,且在竖向荷载作用下即表现出较大的水平和竖向变形;主要抗侧力构件约束屈曲支撑的施工安装顺序对其自身及边缘框架构件的性能也有较大影响;外框柱采用钢管混凝土柱,混凝土徐变对其极限承载力也有削弱。采用施工过程模拟分析技术,揭示了结构在真实施工过程中的变形和受力过程。通过屈曲约束支撑多种安装顺序的分析对比,找出屈曲约束支撑的最佳安装方案,钢管混凝土柱考虑徐变后的强度储备也得到验证。
关键词]高层钢结构; 施工模拟; 钢管混凝土徐变; 屈曲约束支撑
中图分类号:TU3932文献标识码:A文章编号:1002848X(2012)11008704
 
Construction simulation analysis of the People's Daily office building
He Yuan, Sun Xun, Fang Lixin
(School of Civil Engineering, Southeast University, Nanjing 210096, China)
 
Abstract: The People's Daily office building is a high-rise steel structure with an unusual shape. The frames combined with buckling resistance braces (BRBs) were used to resist the vertical and horizontal loads. Some columns are arc-shaped and assembled as trusses which will drift even under the vertical loads due to significant second-order effect. The installation sequence of BRBs effects the performance of the frames significantly, and the ultimate capacity of the steel tubes filled with concrete (CFST) will be lost due to the concrete creep. The numerical simulation method was used to reveal the loading and deformation process while the above factors were taken into consideration. The best sequence of the BRBs installation was found and the other construction effects were well studied.
Keywords: high-rise steel structure; construction simulation; CFST concrete creep; BRBs
通讯作者:孙逊,博士,一级注册结构工程师,Email:sunxun@seu.edu.cn
 
参考文献
1] 孙逊,崔永平,黄明,等.人民日报社报刊综合业务楼结构设计[J.建筑结构,2012,42(9):5255.
2] 傅学怡.高层建筑结构垂直荷载下的施工模拟计算[J.深圳大学学报:理工版,2003,20(4):813.
3] 周绪红,黄湘湘,王毅红,等.钢框架钢筋混凝土核心筒体系竖向变形差异的计算[J.建筑结构学报,2005,26(2):6673.
4] 周绪红,黄湘湘,王毅红,等.钢框架钢筋混凝土核心筒体系竖向变形差异对结构性能的影响[J.土木工程学报,2006,39(4):1519.
5DG/T J08322008高层建筑钢结构设计规程[S.上海:上海市建设和交通委员会,2008.
6] 王元丰.钢管混凝土徐变[M.北京:科学出版社,2006.
7CECS 28:90钢管混凝土结构设计与施工规程[S.北京:中国工程建设标准化协会,1991.
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