yangwei
- Professor
- Supervisor of Master's Candidates
- Name (Pinyin):yangwei
- School/Department:理学院
- Education Level:Postgraduate (Doctoral)
- Degree:Doctoral degree
- Professional Title:Professor
- Status:Employed
- Alma Mater:西安交通大学
- Teacher College:理学院
Other Contact Information
- Email:
- Paper Publications
Seismic behaviors of squat reinforced concrete shear walls under freeze-thaw cycles: A pilot experimental study
Release time:2024-08-09 Hits:
- Affiliation of Author(s):土木工程学院
- Journal:Engineering Structures
- Key Words:中文关键字:冻融循环;钢筋混凝土剪力墙;抗震性能,英文关键字:Freeze-thaw cycles; Squat reinforced concrete shea
- Abstract:An experimental study was undertaken to investigate the influence of freeze-thaw cycles (FTCs) on the seismic performance of shear wall specimens. Four identical squat reinforced concrete (RC) shear wall specimens were tested; three were subjected to 100, 200 and 300 FTCs, and the other one was left undisturbed and used as a control specimen. The shear wall specimens were loaded in a reverse cyclic manner, and the principal damage states were investigated throughout the testing process. The responses of the wall specimens were initially dominated by flexural cracking but gradually changed to shear cracking; the damage patterns of the wall specimens gradually changed from diagonal tensile failure to compressive failure, as the number of FTCs increased. Based on the test results of this study, the effects of FTCs on the damage characteristics, hysteretic behavior, ductility, secant stiffness degradation, strength degradation and energy dissipation capacity of the samples were analyzed. The test results indicate that FTCs have significant effects on the seismic performances of shear walls. As the number of FTCs increases, the load-carrying capacity decreases significantly, and the contribution of shear deformation increases significantly. Specimens experiencing more FTCs tend to have larger ductility coefficients and plastic rotation magnitudes. Note that the energy dissipation coefficient and cumulative hysteretic dissipation energy are more sensitive to changes in the number of FTCs than the work index.
- Co-author:张德义,孙龙飞,甘传磊
- First Author:zhengshansuo,yangwei
- Indexed by:Journal paper
- Volume:卷:124
- Issue:期:6
- Page Number:页:49-63
- Translation or Not:no
- Date of Publication:2016-06-01