[1]张锋剑,朱丽华,王浩楠,等.强化再生骨料混凝土柱抗震性能研究[J].西安建筑科技大学学报(自然科学版),2022,(01):1-10.[doi:10.15986/j.1006-7930.2022.01.001 ]
 ZHANG Fengjian,ZHU Lihua,WANG Haonan,et al.Experimental study on seismic behavior of enhanced recycled aggregate concrete columns[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2022,(01):1-10.[doi:10.15986/j.1006-7930.2022.01.001 ]
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强化再生骨料混凝土柱抗震性能研究()
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西安建筑科技大学学报(自然科学版)[ISSN:1006-7930/CN:61-1295/TU]

卷:
期数:
2022年01期
页码:
1-10
栏目:
出版日期:
2022-02-28

文章信息/Info

Title:
Experimental study on seismic behavior of enhanced recycled aggregate concrete columns
文章编号:
1006-7930(2022)01-0001-10
作者:
张锋剑1朱丽华2王浩楠3武海荣1师 政14曹夫利14张 远14
(1.河南城建学院 土木与交通工程学院,河南 平顶山 467036; 2.西安建筑科技大学 土木工程学院,陕西 西安 710055; 3.长安大学 建筑工程学院,陕西 西安 710061; 4.华北水利水电大学 土木与交通工程学院,河南 郑州 450011)
Author(s):
ZHANG Fengjian1 ZHU Lihua2 WANG Haonan3 WU Hairong1 SHI Zheng14 CAO Fuli14 ZHANG Yuan14
(1.School of Civil and Transportation Engineering, Henan Univ. of Urban Construction, Pingdingshan 467036, China; 2.School of Civil Engineering, Xi'an University of Arch. & Tech., Xi'an 710055, China; 3.School of Civil Engineering, Chang'an University, Xi'an 710061, China; 4.School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450011, China)
关键词:
粗骨料强化 再生混凝土 框架柱 低周反复荷载 抗震性能
Keywords:
strengthening coarse aggregates recycled concrete frame columns reversed cyclic loading seismic behavior
分类号:
TU 375
DOI:
10.15986/j.1006-7930.2022.01.001
文献标志码:
A
摘要:
为研究粗骨料强化的再生混凝土柱和普通混凝土柱抗震性能的差异,设计并制作了5根强化再生骨料混凝土柱和3根普通混凝土柱,选取轴压比和体积配箍率为参数变量,进行低周反复荷载试验.结果表明:框架柱试件在低周反复荷载作用下经历了弯曲破坏和弯剪破坏; 轴压比为0.10、0.25、0.40时,强化再生骨料混凝土柱承载力较普通混凝土柱承载力稍大,该强化方式对柱承载力提升效果明显; 通过增大强化骨料再生混凝土柱的体积配箍率,可以提高强化再生骨料混凝土柱的承载能力与变形能力,减缓强度衰减速度,降低刚度退化速度,增强其抗震性能.
Abstract:
To study the difference in seismic performance between Enhanced Recycled Coarse Aggregate(ERCA)concrete columns and Natural Coarse Aggregate(NCA)concrete columns, five reinforced recycled aggregate concrete columns and three ordinary concrete columns were designed and fabricated, and the specimens were tested under low cyclic loads with the axial compression ratio and volume stirrup ratio as parametric variables. The results showed that the specimens experienced two failure modes, namely, bending-shear failure and bending failure. The lateral bearing capacities of ERCA columns increased compared to those of NCA columns corresponding to the axial compression ratios of 0.10, 0.25, and 0.40, respectively, indicating that this strengthening method could provide a significant increase in bearing capacities. Increasing the volume stirrup ratio could enhance the bearing capacity and deformation capacity, decrease the strength degradation and stiffness degradation rate, and improve the seismic performance for ERCA columns.

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备注/Memo

备注/Memo:
收稿日期:2021-05-15修改稿日期:2022-01-08
基金项目:河南省高等学校重点科研项目(21B560001、21A560003); 河南省住房城乡建设科技计划项目(豫建科〔2021〕228号); 郑州市建设科技项目(2022年度)
第一作者:张锋剑(1978—),男,博士,教授,主要从事再生混凝土及再生混凝土砌体结构研究.E-mail: zfj9608@163.com 通信作者:朱丽华(1979—),男,博士,教授,主要从事工程结构抗震和再生混凝土研究.E-mail: zhulihuaxa@163.com

更新日期/Last Update: 2022-02-20