宁波绿地中心超高层结构设计
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摘要
宁波绿地中心超高层建筑高度为240m,采用带加强层的型钢混凝土框架+钢筋混凝土核心筒混合结构体系。外围框架为型钢混凝土柱+钢框架梁,核心筒底部加强区采用型钢混凝土剪力墙,加强层应用了"虚拟伸臂"概念仅设置环带桁架。核心筒东侧单片剪力墙在高区向内侧收进,采用斜墙转换来满足建筑功能。系统介绍了该工程地基基础设计、结构体系特点、抗震性能化设计原则和方法、罕遇地震作用下的弹塑性时程分析结果以及关键构件设计。
The super high-rise building of Ningbo Greenland Center with the height of 240 m adopts hybrid structural system of steel reinforced concrete( SRC) frame-reinforced concrete corewall with strengthened stories. The peripheral frame is composed of SRC columns and steel beams. SRC shearwall is used in the bottom strengthened zone of the corewall. The concept of ‘virtual outriggers' is applied in strengthened stories with belt trusses. The east single piece of shearwall of the corewall with setback in elevation in the high zone adopts inclined shearwall transfer to meet the building function. The foundation design, structural system characteristics, principles and methods of performance-based seismic design,elasto-plastic time-history analysis results under the rare earthquake and the design of key components were described systematically.
The super high-rise building of Ningbo Greenland Center with the height of 240 m adopts hybrid structural system of steel reinforced concrete( SRC) frame-reinforced concrete corewall with strengthened stories. The peripheral frame is composed of SRC columns and steel beams. SRC shearwall is used in the bottom strengthened zone of the corewall. The concept of ‘virtual outriggers' is applied in strengthened stories with belt trusses. The east single piece of shearwall of the corewall with setback in elevation in the high zone adopts inclined shearwall transfer to meet the building function. The foundation design, structural system characteristics, principles and methods of performance-based seismic design,elasto-plastic time-history analysis results under the rare earthquake and the design of key components were described systematically.
引文
[1]宁波绿地中心四区超高层结构抗震超限审查报告[R].上海:上海三益建筑设计有限公司,2014.
[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]绿地宁波老外滩桃渡路项目4#地块工程场地地震安全性评价报告[R].杭州:浙江省工程地震研究所,2014.
[4]宁波绿地中心四区建筑的风洞试验研究报告[R].上海:同济大学土木工程防灾国家重点实验室,2014.
[5]徐培福,肖从真,李建辉.高层建筑结构自振周期与结构高度关系及合理范围研究[J].土木工程学报,2014,47(2):1-11.
[6]哈敏强,潘浩浩,时磊,等.宁波绿地中心结构整体稳定性分析和TLD风振控制[J].建筑结构,2015,45(7):25-30,99.
[7]魏琏,王森,王志远,等.高层建筑复杂斜墙结构受力特点的研究[J].建筑结构,2004,34(4):8-10.
[8]哈敏强,陆道渊,姜文伟,等.天津现代城办公塔楼抗震设计研究[J].建筑结构,2012,42(5):68-73.
[9]陆道渊,哈敏强,姜文伟,等.天津现代城酒店塔楼及裙房抗震设计研究[J].建筑结构,2012,42(5):62-67.
[10]包联进.南亚之门塔楼结构初步设计[J].建筑结构,2012,42(5):38-42.
[11]GB 50017—2003钢结构设计规范[S].北京:中国计划出版社,2003.
[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]绿地宁波老外滩桃渡路项目4#地块工程场地地震安全性评价报告[R].杭州:浙江省工程地震研究所,2014.
[4]宁波绿地中心四区建筑的风洞试验研究报告[R].上海:同济大学土木工程防灾国家重点实验室,2014.
[5]徐培福,肖从真,李建辉.高层建筑结构自振周期与结构高度关系及合理范围研究[J].土木工程学报,2014,47(2):1-11.
[6]哈敏强,潘浩浩,时磊,等.宁波绿地中心结构整体稳定性分析和TLD风振控制[J].建筑结构,2015,45(7):25-30,99.
[7]魏琏,王森,王志远,等.高层建筑复杂斜墙结构受力特点的研究[J].建筑结构,2004,34(4):8-10.
[8]哈敏强,陆道渊,姜文伟,等.天津现代城办公塔楼抗震设计研究[J].建筑结构,2012,42(5):68-73.
[9]陆道渊,哈敏强,姜文伟,等.天津现代城酒店塔楼及裙房抗震设计研究[J].建筑结构,2012,42(5):62-67.
[10]包联进.南亚之门塔楼结构初步设计[J].建筑结构,2012,42(5):38-42.
[11]GB 50017—2003钢结构设计规范[S].北京:中国计划出版社,2003.
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