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螺栓预紧力对PC外挂墙板摩擦耗能装置力学性能试验研究

隋伟宁 马勇 董峥 王旭 杨海涛 夏达东

隋伟宁, 马勇, 董峥, 王旭, 杨海涛, 夏达东. 螺栓预紧力对PC外挂墙板摩擦耗能装置力学性能试验研究[J]. 工业建筑, 2024, 54(4): 54-63. doi: 10.3724/j.gyjzG23030801
引用本文: 隋伟宁, 马勇, 董峥, 王旭, 杨海涛, 夏达东. 螺栓预紧力对PC外挂墙板摩擦耗能装置力学性能试验研究[J]. 工业建筑, 2024, 54(4): 54-63. doi: 10.3724/j.gyjzG23030801
SUI Weining, MA Yong, DONG Zheng, WANG Xu, YANG Haitao, XIA Dadong. Experimental Research on Mechanical Properties of Friction-Based Energy Dissipation Device for PC External Wallboards by Bolt Preload[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(4): 54-63. doi: 10.3724/j.gyjzG23030801
Citation: SUI Weining, MA Yong, DONG Zheng, WANG Xu, YANG Haitao, XIA Dadong. Experimental Research on Mechanical Properties of Friction-Based Energy Dissipation Device for PC External Wallboards by Bolt Preload[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(4): 54-63. doi: 10.3724/j.gyjzG23030801

螺栓预紧力对PC外挂墙板摩擦耗能装置力学性能试验研究

doi: 10.3724/j.gyjzG23030801
基金项目: 

辽宁省科技厅自然科学基金项目(2020-MS-221);辽宁省教育厅重点攻关项目(JYTZD2023163)。

详细信息
    作者简介:

    隋伟宁,博士,教授,主要从事多高层建筑钢结构分析与统计原理、工程结构振动与控制等研究工作。416856649@qq.com

Experimental Research on Mechanical Properties of Friction-Based Energy Dissipation Device for PC External Wallboards by Bolt Preload

  • 摘要: 设计了一种摩擦耗能装置,它由中心钢板、一对夹紧角钢和单圆孔摩擦板组成。该装置应用于预制混凝土墙板和钢框架之间的4点连接吊装结构上部的连接处,用于摩擦耗能装置的摩擦板材料为A6061-T6铝合金板材。选取4组试件进行低周往复加载试验,各试件的螺栓预紧力分别为17.5,32.9,52.8,71.8 kN,研究了螺栓预紧力对摩擦耗能装置的滞回性能、初始刚度、临界滑动摩擦力、稳定性、耗能能力等的影响。研究结果表明:螺栓预紧力对摩擦耗能装置的力学性能具有决定性作用;试验加载结束后,L-B1试件摩擦板螺栓孔由于挤压变形,向一侧产生20 mm的压缩变形;与L-B1试件相比,L-B2~L-B4试件的初始刚度值变化范围在10%左右,因此,在多遇地震作用下摩擦耗能装置具有较为稳定的力学性能;随着螺栓预紧力的增大,与L-B1试件相比,L-B2~L-B4试件的平均峰值滑动摩擦力分别提高31%、39%、55%,临界滑动摩擦力分别提高32%、40%、52%,层间位移角分别提高99%、106%、110%,耗能能力分别降低25%、29%、39%。
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出版历程
  • 收稿日期:  2023-03-08
  • 网络出版日期:  2024-05-29

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