大连绿地中心结构设计

引用文献:

包联进 陈建兴 周建龙 汪大绥 钱鹏. 大连绿地中心结构设计[J]. 建筑结构,2022,48(09):30-35.

BAO Lianjin CHEN Jianxing ZHOU Jianlong WANG Dasui QIAN Peng. Structural design of Dalian Greenland Center[J]. Building Structure,2022,48(09):30-35.

作者:包联进 陈建兴 周建龙 汪大绥 钱鹏
单位:华东建筑设计研究院有限公司
摘要:大连绿地中心为超高层建筑,建筑高度518m,结构高度400.8m,塔冠高度117m。大连风荷载较大,塔冠较高,为风荷载控制的超高层建筑。结合建筑体型、功能布局以及结构受力要求,采用巨型框架支撑+核心筒+伸臂桁架结构体系。整体结构弹性和弹塑性时程分析结果表明,结构整体指标满足规范要求,主要构件性能满足预定抗震性能目标的要求。通过风洞试验,分析了体型优化和塔冠表皮开孔对塔楼风荷载效应的影响。通过分析支撑和伸臂桁架对结构刚度的影响,确定结构抗侧力体系和布置。针对酒店区建筑布置的要求,对酒店区不同结构布置的受力性能进行对比分析,选择合理的密柱深梁结构方案。根据塔楼结构特点,探讨剪重比的合理取值和提高剪重比的措施。
关键词:大连绿地中心,超高层建筑,风荷载,巨型框架,伸臂桁架,剪重比
作者简介:包联进,博士,正高级工程师,主要从事超高层结构和复杂结构设计工作,Email:blj0068@ecadi.com。*陈建兴,博士,正高级工程师,主要从事超高层结构和复杂结构设计工作,Email:cjx10426@ecadi.com。
基金:国家自然科学基金资助项目(5207804);“上海超高层建筑设计工程技术研究中心”建设项目(14DZ2252800);华建集团科研项目(19-1类-0142-结)。
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Structural design of Dalian Greenland Center
BAO Lianjin CHEN Jianxing ZHOU Jianlong WANG Dasui QIAN Peng
(East China Architectural Design & Research Institute Co.,Ltd.)
Abstract: Dalian Greenland Center is a super high-rise building with a building height of 518 m and a structural height of 400.8 m, and a tower crown height of 117 m. Due to large wind load in Dalian city and the high tower crown, it is a super high-rise building controlled by wind load. Combined with the building shape, functional layout and the structural mechanical requirements, the structural system of mega braced frame and core tube with outrigger trusses is adopted. The results of elastic and elastic-plastic time history analysis of the overall structure show that the overall index of the structure meets the requirements of the code, and the performance of the main members meets the requirements of the predetermined seismic performance targets. Through the wind tunnel test, the influence of shape optimization and tower crown skin opening on the wind load effect of the tower was analyzed. By analyzing the influence of brace and outrigger truss on structural stiffness, the lateral force resistant system and layout of the structure were determined. According to the requirements of building layout in the hotel zone, the mechanical performance of different structural layout in the hotel zone was compared and analyzed, and a reasonable structural scheme of dense column deep beam was selected. According to the structural characteristics of the tower, the reasonable value of the shear weight ratio and the measures to improve the shear weight ratio were discussed.
Keywords: Dalian Greenland Center; super high-rise building; wind load; mega frame; outrigger truss; shear weight ratio
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