[1]廖旭钊,劳智源,王岩嵩,等.非对称斜交弱连接连体结构抗震性能研究[J].华南地震,2025,(02):90-107.[doi:10.13512/j.hndz.2025.02.12]
 LIAO Xuzhao,LAO Zhiyuan,WANG Yansong,et al.Seismic Performance of Asymmetric Oblique Weakly Connected Structures[J].,2025,(02):90-107.[doi:10.13512/j.hndz.2025.02.12]
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非对称斜交弱连接连体结构抗震性能研究()

华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2025年02期
页码:
90-107
栏目:
土木工程防震减灾
出版日期:
2025-06-30

文章信息/Info

Title:
Seismic Performance of Asymmetric Oblique Weakly Connected Structures
文章编号:
1001-8662(2025)02-0084-18
作者:
廖旭钊1劳智源1王岩嵩2石开荣2刘维佳2
1.广东省建筑设计研究院集团股份有限公司,广州 510010;2.华南理工大学 土木与交通学院,广州 510640
Author(s):
LIAO Xuzhao1LAO Zhiyuan1WANG Yansong2SHI Kairong2LIU Weijia2
1.Guangdong Architectural Design and Research Institute Group Co.,Ltd.,Guangzhou 510010,China;2.School of Civil Engineering and Transportation,South China University of Technology, Guangzhou 510641, China
关键词:
非对称斜交连体结构弱连接地震响应抗震性能
Keywords:
Asymmetric Oblique connected structure Weakly connected Seismic response Seismic perfor?mance
分类号:
TU973.1
DOI:
10.13512/j.hndz.2025.02.12
文献标志码:
A
摘要:
相较于常规正交连体结构,斜交连体结构在地震作用下的受力特性更为复杂,其中连接体与塔楼的连接方式是一关键影响参数。该研究以双连接体的非对称斜交弱连接连体结构为对象,着重针对三种支座连接刚度变化方案进行抗震性能对比分析,结果表明:随连接体各支座刚度的增大,结构的自振周期减小,基底剪力与位移的变化幅度随刚度变化的支座数量增加而增大,抗侧刚度较弱方向的位移受到的控制作用增强,双层连接体的受力随支座刚度增大而增大,单层连接体受力未呈现明显规律,支座相对位移总体呈减小趋势,与双层连接体连接的塔楼边柱在地震作用方向上的剪力总体呈增大趋势,与单层连接体连接的塔楼边柱受力情况较为复杂;连接体单侧支座刚度变化时,该侧主体结构平动振型受影响相对较大,支座相对位移与边柱剪力变化幅度大于未变化侧;单个连接体的支座刚度变化对其他连接体的平动振型与地震响应影响较小。由此,上述结论可以为非对称斜交弱连接连体结构的方案选型与设计提供参考。
Abstract:
Compared with conventional orthogonal connected structures, oblique connected structures exhibit more complex mechanical behaviors under seismic actions. The connection method between the connector and tow?ers serving as a critical influencing parameter. This study focused on an asymmetric oblique weakly connected struc?ture of dual connectors and predominantly conducted comparative analysis on seismic performance under the con?nection stiffness variation schemes of three kinds of bearings. The results indicate that:As the stiffness of each con?nector bearing increases,the natural vibration period of the structure decreases,while the variation amplitudes of base shear and displacement increase with the number of stiffness-modified bearings. The control effect on displace?ment increases in the direction with lower lateral stiffness. The load stress of the double-layer connector increases with bearing stiffness,while that of the single-layer connector shows no distinct pattern. Bearing relative displace?ment generally decrease,and the shear forces on the edge columns of towers connected to double-layer connectors exhibit a generally increasing trend along seismic action directions, whereas those connected to single-layer con?nectors demonstrate more complex load stress situations. When modifying unilateral bearing stiffness,the transla?tional vibration modes of corresponding main structures experience greater impacts, with relative displacements and edge column shear variations exceeding those on unmodified sides. Stiffness adjustment in individual connector minimally affects translational vibration modes and seismic responses of other connectors. Therefore,these conclu?sions provide valuable references for scheme selection and design of asymmetric oblique weakly connected struc?tures.

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备注/Memo

备注/Memo:
收稿日期:2025-03-16
基金项目:广东省现代土木工程技术重点实验室课题(2021B1212040003)
作者简介:廖旭钊(1975-),男,硕士,教授级高级工程师,主要从事复杂结构设计研究。E-mail:715128129@qq.com
通信作者:石开荣(1978-),男,博士,副教授,主要从事结构优化、预应力钢结构研究。E-mail:krshi@scut.edu.cn
更新日期/Last Update: 2025-06-30