恒大集团超高层办公楼抗震设计与弹塑性分析

IF 1.4 4区 工程技术 Q3 ENGINEERING, CIVIL
Zhang Xiaomeng, Ren Qingying, Liu Wenting, Songlin Yang, Yilun Zhou
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引用次数: 1

摘要

济南恒大集团超高层建筑采用框架-核心筒结构体系。高度238.3m,超过了7级抗震设防区内建筑物的B级高度限制150m。因此,有必要将基于性能的抗震设计应用于该超高层建筑。在本研究中,使用两个软件应用程序对结构进行了响应谱分析和比较分析。此外,还进行了弹性时程分析、中等地震下的地震分析和罕见地震下的弹塑性时程分析。根据分析结果,在结构较弱的部位,如转角处、与框架梁连接的墙端、与框架梁连接的连梁处,采取了相应的加固措施。分析了该结构在罕遇地震作用下的主要应力构件的破坏模式和破坏区。这项研究的结论表明,在发生罕见地震时,结构的薄弱位置和重要部分满足弹塑性变形的要求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Seismic design and elastic–plastic analysis ofthe hengda group super high-rise office buildings
The Hengda Group super high-rise building in Jinan City uses the frame-core tube structural system. With a height of 238.3 m, it is above the B-level height limit of 150 m for buildings within 7-magnitude seismic fortification zones. Therefore, it is necessary to apply performance-based seismic design to this super high-rise building. In this study, response spectrum analysis and comparative analysis of the structure are conducted using two software applications. Moreover, elastic time-history analysis, seismic analysis under an intermediate earthquake, and elastic–plastic time-history analysis under rare earthquakes are performed. Based on the analysis results, corresponding strengthening measures are implemented at weaker structural locations, such as corners, wall ends connected to framed girders, and coupling beams connected to framed girders. The failure mode and failure zone of major stress components of the structure under rare earthquakes are analysed. The conclusions to this research demonstrate that weaker locations and important parts of the structure satisfy the requirements for elastic–plastic deformation in the event of rare earthquakes.
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来源期刊
Earthquakes and Structures
Earthquakes and Structures ENGINEERING, CIVIL-ENGINEERING, GEOLOGICAL
CiteScore
2.90
自引率
20.00%
发文量
0
审稿时长
>12 weeks
期刊介绍: The Earthquakes and Structures, An International Journal, focuses on the effects of earthquakes on civil engineering structures. The journal will serve as a powerful repository of technical information and will provide a highimpact publication platform for the global community of researchers in the traditional, as well as emerging, subdisciplines of the broader earthquake engineering field. Specifically, some of the major topics covered by the Journal include: .. characterization of strong ground motions, .. quantification of earthquake demand and structural capacity, .. design of earthquake resistant structures and foundations, .. experimental and computational methods, .. seismic regulations and building codes, .. seismic hazard assessment, .. seismic risk mitigation, .. site effects and soil-structure interaction, .. assessment, repair and strengthening of existing structures, including historic structures and monuments, and .. emerging technologies including passive control technologies, structural monitoring systems, and cyberinfrastructure tools for seismic data management, experimental applications, early warning and response
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