Seismic Performance of SFRC Shear Walls with Window Opening and the Substitution Effect for Steel Bars

被引:5
作者
Zhang, Hongmei [1 ]
Tang, Zizhao [1 ]
Duan, Yuanfeng [1 ]
Chen, Zhiyuan [1 ]
机构
[1] Zhejiang Univ, Coll Civil Engn & Architecture, Hangzhou 310058, Peoples R China
基金
中国国家自然科学基金;
关键词
shear wall; steel fiber; steel-fiber-reinforced self-compacting concrete; opening; substitution; axial compression ratio; cyclic loading; seismic performance; REINFORCED-CONCRETE WALLS; BEHAVIOR; MODEL;
D O I
10.3390/buildings13061550
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Shear walls are important vertical and lateral bearing element in structures. While shear walls with openings are fragile due to stress concentration and the quasi-brittle behavior of concrete in tension. Therefore, additional strengthening rebars are required for the shear walls with openings. However, it aggravates the problem of dense reinforcement which increases the steel cage manufacturing and concrete compaction problem and still lacks countermeasures against concrete damage and cracking. To reduce the rebar demand and improve the damage tolerance of squat reinforced concrete (RC) shear walls with openings, an optimized steel-fiber-reinforced concrete (SFRC) was adopted to understand the seismic performance by cyclical loading test. The tested specimens included a plain RC shear wall without strengthening bar around the opening (for comparison), an SFRC shear wall, and an SFRC shear wall with a reduced distributed steel bar. This paper mainly studies the effect of using SFRC to improve the seismic performance of the open shear wall and to replace the reinforcement around the opening and the shear reinforcement. The hysteresis curves, skeleton curves, stiffness degradation, bearing capacity degradation and energy dissipation of the specimens were analyzed. The results show that the failure can be delayed and relieved, the deformation capacity and energy dissipation can considerably improve, and rebars can be partially replaced by using SFRC.
引用
收藏
页数:21
相关论文
共 50 条
  • [41] Influence of a window-type opening on the shear response of partially-grouted masonry shear walls
    Calderon, Sebastian
    Sandoval, Cristian
    Inzunza, Ernesto
    Cruz-Noguez, Carlos
    Rahim, Amr Ba
    Vargas, Laura
    ENGINEERING STRUCTURES, 2019, 201
  • [42] Experimental and numerical investigation on the seismic performance of RC squat shear walls with single post-opening reinforced by steel plates
    Liu, Meng
    Yuan, Guanglin
    Sun, Wen
    Shu, Qianjin
    Zhao, Zhiyuan
    Lu, Limin
    EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING, 2024, 28 (01) : 53 - 79
  • [43] Experimental study on seismic performance of steel fiber reinforced high strength concrete composite shear walls with different steel fiber volume fractions
    Lu, Xilin
    Zhang, Ying
    Zhang, Hongmei
    Zhang, Hanshu
    Xiao, Renjie
    ENGINEERING STRUCTURES, 2018, 171 : 247 - 259
  • [44] Seismic performance assessment of steel plate shear walls equipped with passive dampers
    Ahmed, Mohammed M.
    Mamazizi, Arman
    Soltanabadi, Reza
    Jalali, Himan Hojat
    STRUCTURES, 2023, 55 : 1204 - 1218
  • [45] Nonlinear seismic performance of code designed perforated steel plate shear walls
    Barua, Kallol
    Bhowmick, Anjan K.
    STEEL AND COMPOSITE STRUCTURES, 2019, 31 (01) : 85 - 98
  • [46] Influence of composite floor slab on seismic performance of steel plate shear walls
    Verma, Abhishek
    Sahoo, Dipti Ranjan
    JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2022, 188
  • [47] Numerical Study on Seismic Performance of Cold Formed Steel Sheathed Shear Walls
    Zeynalian, M.
    ADVANCES IN STRUCTURAL ENGINEERING, 2015, 18 (11) : 1819 - 1829
  • [48] Seismic performance of steel plate shear walls with variable column flexural stiffness
    Curkovic, Ivan
    Skejic, Davor
    Dzeba, Ivica
    STEEL AND COMPOSITE STRUCTURES, 2019, 33 (01) : 1 - 18
  • [49] Experimental Investigation on Seismic Resistance of RC Shear Walls with CFRP Bars in Boundary Elements
    Jun Zhao
    Fuqiang Shen
    Chenzhe Si
    Yuping Sun
    Lu Yin
    International Journal of Concrete Structures and Materials, 2020, 14
  • [50] Seismic performance assessment of steel frame infilled with prefabricated wood shear walls
    Li, Zheng
    He, Minjuan
    Wang, Xijun
    Li, Minghao
    JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2018, 140 : 62 - 73