(天津市建筑设计院， 天津 300074)

［摘要］津湾广场9号楼超限高层建筑采用钢筋混凝土核心筒-矩形钢管混凝土柱钢框架结构体系。结构底部布置钢混凝土组合巨柱，在第8，58层设置转换桁架，将其上部的48根外框柱转换为下部的8根巨柱和4根角柱，且转换桁架下部还悬吊了3层外框柱。鉴于第8层的转换桁架的重要性，对转换桁架进行了性能化设计，并分析了施工分段安装顺序对转换桁架的影响。计算结果表明，转换桁架达到了预期的性能目标，施工过程中转换桁架的安装是合理、安全的。

［关键词］津湾广场; 超限高层结构; 转换桁架; 抗震性能设计; 施工顺序模拟; 铸钢节点

中图分类号：TU973.1      标识码：A      文章编号：1002-848X(2014)02-0043-05 

Structural design of transfer truss of No.9 building in Jinwan Square

Zhou Deling, Wang Yi, Zhao Hua, Zhang Wei

(Tianjin Architecture Design Institute, Tianjin 300074, China)

Abstract: Structural system of  reinforced concrete corewall and concrete-filled steel rectangular tube frame was adopted for out-of-code high-rise No.9 building in Jinwan Square. Steel-concrete composite huge columns were set at the structure bottom and transfer trusses were arranged on the 8th and 58 th floor. Transfer trusses convert 48 outer frame columns on its upper parts to 8 huge columns and 4 corner columns on its lower parts. Three floors of outer frame columns were hanged below the transfer truss. In consideration of the importance of the transfer truss on the 8th flow, performance-based design method was used. The influence of construction sectional installation sequence on the transfer truss was analyzed. The results show that the transfer truss can meet the expected performance objectives and construction installation is feasible and safe.

Keywords: Jinwan Square; out-of-code high-rise structure; transfer truss; performance-based seismic design; construction sequence simulation; cast steel node

作者简介：周德玲，硕士，高级工程师，一级注册结构工程师，Email:zhoudeling63@eyou.com。 

参考文献

［1］黄兆纬，蔡浩良，胡雪瀛，等.津湾广场9号楼超限高层结构方案形成过程［Ｊ］．建筑结构，2014，44（2）：32-37.

［2］JGJ 3—2010 高层建筑混凝土结构技术规程［S］.北京：中国建筑工业出版社，2011.

［3］GB 50011—2010建筑抗震设计规范［S］.北京：中国建筑工业出版社，2010.

［4］徐培福，傅学怡，王翠坤，等.复杂高层建筑结构设计［M］.北京：中国建筑工业出版社，2005.

［5］建质［2010］109号 超限高层建筑工程抗震设防专项审查技术要点［S］.2010.

［6］钟善桐. 钢管混凝土结构［M］.北京：清华大学出版社，2003.

［7］CECS 235—2008铸钢节点应用技术规程［S］.北京：中国计划出版社，2008.