| 高层建筑中伸臂桁架的耗能性能研究 |
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| 引用本文： | 甄伟,邱意坤,杨青顺,张万开. 高层建筑中伸臂桁架的耗能性能研究[J]. 工程力学, 2021, 38(2): 36-43. DOI: 10.6052/j.issn.1000-4750.2020.10.ST08 |
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| 作者姓名： | 甄伟 邱意坤 杨青顺 张万开 |
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| 作者单位： | 北京市建筑设计研究院有限公司,北京 100045;青海大学土木工程学院,青海 810016 |
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| 基金项目： | 青海省科技计划项目(2019-ZJ-975Q);创新平台:青海省创新平台建设专项项目(2018-ZJ-T01)。 |
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| 摘 要： | 伸臂桁架是超高层结构中的关键构件,改善其耗能能力对提升结构的抗震性能具有重要意义.常见的伸臂桁架形式主要有普通支撑型伸臂桁架、屈曲约束支撑型(BRB)伸臂桁架和阻尼型伸臂桁架等.该文从框架-核心筒-伸臂桁架结构体系入手,对普通支撑型、屈曲约束支撑型和阻尼型伸臂桁架的受力性能和耗能性能进行了研究.结果表明,结构采用不同的...
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| 关 键 词： | 超高层结构 伸臂桁架 屈曲约束支撑 摩擦型阻尼 耗能性能 |
| 收稿时间： | 2020-10-09 |
ENERGY DISSIPATION PERFORMANCE OF OUTRIGGER IN TALL BUILDINGS |
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| ZHEN Wei,QIU Yi-kun,YANG Qing-shun,ZHANG Wan-kai. ENERGY DISSIPATION PERFORMANCE OF OUTRIGGER IN TALL BUILDINGS[J]. Engineering Mechanics, 2021, 38(2): 36-43. DOI: 10.6052/j.issn.1000-4750.2020.10.ST08 |
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| Authors: | ZHEN Wei QIU Yi-kun YANG Qing-shun ZHANG Wan-kai |
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| Affiliation: | 1.Beijing Institute of Architectural Design, Beijing 100045, China2.College of Civil Engineering, Qinghai University, Qinghai 810016, China |
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| Abstract: | The outriggers are the key components of super-tall structures.Increasing the energy dissipation capacities of outriggers is of a great significance on improving the structural aseismic performance.The commonly used outriggers include regular outriggers,buckling restrained braces(BRB)outriggers,and outriggers with dampers.Based on a super-tall frame-core-outrigger structure,the energy dissipation and aseismic performance of regular outriggers,buckling restrained braces(BRB)outriggers,and outriggers with dampers are investigated and compared.The results indicate that different outriggers have some impacts on the seismic energy input and energy distribution of the structure.Compared with the ordinary outrigger system,the BRB and damped outrigger systems have better energy consumption performance.In addition,the damped outrigger has a more obvious effect on the damage control of the core cylinder,while the BRB outrigger has the best effect in the displacement response control for the overall structure of a super-tall building. |
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| Keywords: | super-tall structure outrigger buckling-restrained brace friction damper energy dissipation |
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