Experimental Study of Seismic Damage with Park-Ang Model for Recycled Aggregate Concrete Columns

被引：1
|
作者：
Fan, Yujiang [1 ]
Guo, Ziqiang [1 ]
Wang, Yachao [2 ]
Zhao, Pengcheng [1 ]
Yu, Binshan [3 ]
机构：
[1] Changan Univ, Sch Architecture, Xian 710061, Peoples R China
[2] Changan Univ, Sch Architecture & Civil Engn, Xian 710061, Peoples R China
[3] Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China
来源：
KSCE JOURNAL OF CIVIL ENGINEERING | 2021年 / 25卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Recycled aggregate concrete columns; Low cycle loading tests; Two-parameter damage model; Damage degree; Cyclic loading coefficient; Mixed fibers;
D O I：
10.1007/s12205-021-1110-x
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
By means of the low cycle loading tests on six recycled aggregate concrete (RAC) columns with different proportions, in combination with the Park-Ang two-parameter damage model suitable for ordinary concrete columns and the damage degree D-c of actual structures, the calculated value of cyclic loading coefficient beta of recycled aggregate concrete columns was determined. It would be achieved by analyzing the calculated beta that the impact of the replacement ratio of recycled aggregate and the content of mixed fibers on beta was significantly different. Considering the reinforcement ratio mentioned in paper. Matlab was further employed to fit multivariable linear equation regarding recycled aggregate replacement ratio, mixed fibers contents and reinforcement rate as the basis, so that the computation formula of the cyclic loading coefficient beta suitable for recycled aggregate concrete columns was revealed.
引用
收藏
页码：3401 / 3408
页数：8
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