[1]赵洪飞,乔崎云,曹万林,等.铝合金-木组合短柱轴压性能试验研究[J].自然灾害学报,2022,31(05):055-64.[doi:10.13577/j.jnd.2022.0507]
 ZHAO Hongfei,QIAO Qiyun,CAO Wanlin,et al.Experimental investigation on the aluminum alloy-timber composite stub columns under axial compression[J].,2022,31(05):055-64.[doi:10.13577/j.jnd.2022.0507]
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铝合金-木组合短柱轴压性能试验研究
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
31
期数:
2022年05期
页码:
055-64
栏目:
出版日期:
2022-10-28

文章信息/Info

Title:
Experimental investigation on the aluminum alloy-timber composite stub columns under axial compression
作者:
赵洪飞1 乔崎云2 曹万林2 姜爽1 马晨洋3 刘宏波3
1. 国网北京市电力公司电缆分公司, 北京 100022;
2. 北京工业大学 建筑工程学院, 北京 100124;
3. 河北建筑工程学院 土木工程学院, 河北 张家口 075000
Author(s):
ZHAO Hongfei1 QIAO Qiyun2 CAO Wanlin2 JIANG Shuang1 MA Chenyang3 LIU Hongbo3
1. State Grid Beijing Electric Power Company, Beijing 100022, China;
2. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;
3. School of Civil Engineering, Hebei University of Architecture, Zhangjiakou 075000, China
关键词:
铝合金-木组合结构短柱轴压性能CFRP试验研究
Keywords:
aluminum alloy-timber composite structurestub columnaxial compressive behaviorCFRPexperimental investigation
分类号:
TU512.4;TU366.2
DOI:
10.13577/j.jnd.2022.0507
摘要:
文中提出了一种铝合金管-木组合柱结构,该新型组合柱由外部铝合金管、内部木柱及铝合金管和木柱之间的水泥净浆组成。进行了该新型组合短柱的轴压性能试验,试验设计参数为铝合金管壁厚、木柱直径、水泥净浆水灰比及CFRP粘贴层数等。分析了各试件的破坏形态、荷载-位移曲线、承载力、刚度、延性及应变特征等。结果表明:铝合金-木组合短柱最终破坏形态为柱中屈曲破坏和柱端屈曲破坏。荷载-位移曲线可分为弹性阶段、弹塑性阶段、屈曲阶段、破化阶段和二次上升阶段;不同设计参数对短柱试件轴压性能均会产生一定影响,其中木柱直径对承载力、刚度及延性的影响最大。最后,提出了该组合短柱承载能力计算方法,所得理论计算值与试验值符合较好。
Abstract:
In this study,an innovative aluminum alloytube-timber composite column structure is proposed,which includes the outer aluminum tube,inner timber and mortar. Axial compressive test was carried out on the proposed stub columns,and the test variables included the tube thickness,timber diameter,water-cement ratio of cement paste,and the number of layers of CFRP.Failure modes,load-displacement curves,strength,stiffness,ductility and strain characteristics were analyzed. Results show that the final failure modes were buckling damage in the middle of the column and buckling damage at the end of the column. The load-displacement curve can be roughly divided into elastic phase,elastic-plastic phase,buckling phase,failure phase,and secondary rising phase. The different test variables have certain influences on the compressive behavior of the stub columns,and the timber diameter has the most influence on the bearing capacity,stiffness,and ductility. Finally,a calculation method for the ultimate bearing capacity was developed,the calculated values fit well with the experiment results.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021-6-21;改回日期:2021-12-7。
基金项目:国家重点研发计划(2018YFD1100402)
作者简介:赵洪飞(1993-),女,工程师,主要从事电力工程安全与管理方面的研究.E-mail:379544489@qq.com
通讯作者:乔崎云(1985-),男,副教授,博士,主要从事结构工程方面的研究.E-mail:qiaoqiyun@bjut.edu.cn
更新日期/Last Update: 1900-01-01