TY - JOUR
T1 - Cyclic behavior of low rise concrete shear walls containing recycled coarse and fine aggregates
AU - Qiao, Qiyun
AU - Cao, Wanlin
AU - Qian, Zhiwei
AU - Li, Xiangyu
AU - Zhang, Wenwen
AU - Liu, Wenchao
PY - 2017/12/7
Y1 - 2017/12/7
N2 - In this study, the cyclic behaviors of low rise concrete shear walls using recycled coarse or fine aggregates were investigated. Eight low rise Recycled Aggregates Concrete (RAC) shear wall specimens were designed and tested under a cyclic loading. The following parameters were varied: replacement percentages of recycled coarse or fine aggregates, reinforcement ratio, axial force ratio and X-shaped rebars brace. The failure characteristics, hysteretic behavior, strength and deformation capacity, strain characteristics and stiffness were studied. Test results showed that the using of the Recycled Coarse Aggregates (RCA) and its replacement ratio had almost no influence on the mechanical behavior of the shear wall; however, the using of Recycled Fine Aggregates (RFA) had a certain influence on the ductility of the shear wall. When the reinforcement ratio increased, the strength and ductility also increased. By increasing the axial force ratio, the strength increased but the ductility decreased significantly. The encased brace had a significant effect on enhancing the RAC shear walls. The experimental maximum strengths were evaluated with existing design codes, it was indicated that the strength evaluation of the low rise RAC shear walls can follow the existing design codes of the conventional concrete shear walls.
AB - In this study, the cyclic behaviors of low rise concrete shear walls using recycled coarse or fine aggregates were investigated. Eight low rise Recycled Aggregates Concrete (RAC) shear wall specimens were designed and tested under a cyclic loading. The following parameters were varied: replacement percentages of recycled coarse or fine aggregates, reinforcement ratio, axial force ratio and X-shaped rebars brace. The failure characteristics, hysteretic behavior, strength and deformation capacity, strain characteristics and stiffness were studied. Test results showed that the using of the Recycled Coarse Aggregates (RCA) and its replacement ratio had almost no influence on the mechanical behavior of the shear wall; however, the using of Recycled Fine Aggregates (RFA) had a certain influence on the ductility of the shear wall. When the reinforcement ratio increased, the strength and ductility also increased. By increasing the axial force ratio, the strength increased but the ductility decreased significantly. The encased brace had a significant effect on enhancing the RAC shear walls. The experimental maximum strengths were evaluated with existing design codes, it was indicated that the strength evaluation of the low rise RAC shear walls can follow the existing design codes of the conventional concrete shear walls.
KW - Cyclic behavior
KW - Low rise shear wall
KW - Recycled coarse aggregates
KW - Recycled fine aggregates
KW - Strength evaluation
UR - http://resolver.tudelft.nl/uuid:7309d2be-9105-44a4-999d-dad3c0bc67d3
UR - http://www.scopus.com/inward/record.url?scp=85037522018&partnerID=8YFLogxK
U2 - 10.3390/ma10121400
DO - 10.3390/ma10121400
M3 - Article
AN - SCOPUS:85037522018
SN - 1996-1944
VL - 10
SP - 1
EP - 22
JO - Materials
JF - Materials
IS - 12
M1 - 1400
ER -