质量调谐式组合柱轴压力学性能试验与数值模拟研究

房晓俊; 李俊熙; 周云; 宋建

doi:10.3724/j.gyjzG24091401

质量调谐式组合柱轴压力学性能试验与数值模拟研究

doi: 10.3724/j.gyjzG24091401

房晓俊^1,2,3,
李俊熙²,
周云^2, ,,
宋建³

1. 广州大学工程抗震研究中心, 广州 510006;
2. 广州大学土木工程学院, 广州 510006;
3. 香港理工大学土木及环境工程学系, 香港 999077

基金项目:

国家自然科学基金项目(52308308)

广东省青年优秀人才国际培养计划博士后项目。

详细信息

作者简介:
房晓俊,博士研究生,主要从事结构振动控制和海洋土木工程研究。

通讯作者:
周云,博士,教授,主要从事结构抗震、减振和隔震控制研究,zhydxs@163.com。

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- 被引次数: 0
出版历程
- 收稿日期: 2024-09-14
- 网络出版日期: 2025-04-02

Experimental and Numerical Studies on Axially-loaded Mechanical Properties of Tuned-Mass Type Composite Columns

FANG Xiaojun^1,2,3,
LI Junxi²,
ZHOU Yun^{2
, ,},
SONG Jian³

1. Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510006, China;
2. School of Civil Engineering, Guangzhou University, Guangzhou 510006, China;
3. Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hong Kong 999077, China

摘要

摘要: 为了研究质量调谐式组合柱(Tuned-mass type composite column,TMTCC)的轴压力学性能,设计加工7组TMTCC试件,每组2个,对其进行轴压试验和数值模拟,分析了长径比和径厚比对TMTCC承载能力的影响;根据规范GB 50936—2014《钢管混凝土结构技术规范》和T/CCES 7—2020《中空夹层钢管混凝土结构技术规程》,建立了TMTCC轴压极限承载力的预测算式,并通过试验和数值结果进行验证。结果表明:TMTCC试件的轴压极限承载力随着长径比和径厚比的增大而趋于减小;弹簧和阻尼器可以有效防止TMTCC内柱的滑动倾斜和整体屈曲,保障内、外柱协同变形,充分发挥TMTCC的竖向承载能力;数值模型和计算式得到的预测结果与试验结果吻合良好,可用于TMTCC的分析与设计。
- 质量调谐式组合柱 /
- 弹簧/阻尼器 /
- 轴压力学性能 /
- 数值模拟 /
- 极限承载力计算式
Abstract: In order to investigate the axially-loaded mechanical properties of the tuned-mass type composite columns (TMTCCs), 7 groups (each group had 2 specimens) of TMTCC specimens were designed and prepared, and experimental and numerical studies were conducted in the paper. The influences of length-to-diameter ratio and diameter-to-thickness ratio on its bearing capacity were studied as well. Moreover, according to the Technical Code for Concrete Filled Steel Tubular Structures (GB 50936—2014) and Technical Specification for Concrete-Filled Double Skin Steel Tubular structures (T/CCES 7—2020), the prediction formula of the ultimate axial load-bearing capacity of TMTCC under axial compression was developed and verified by experimental and numerical results. The results showed that the ultimate bearing capacity of TMTCC specimens under axial compression tended to decrease with the increase of length-to-diameter ratio and diameter-to-thickness ratio. By adopting the springs and dashpots, the internal and external columns of TMTCC could work together to bear the vertical loading and hence effectively prevented the sliding, tilting and global buckling of the internal column. The obtained numerical and predicted results were in good agreements with the experimental results, which can be used for the analysis and design of TMTCC.
- tuned-mass type composite column /
- spring/dashpot /
- axially-loaded mechanical properties /
- numerical simulation /
- formula of ultimate bearing capacity

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