Seismic performance of concrete bridge piers reinforced by stainless steel bars: A quasi-static experimental study

被引：13
作者：
Fu, Jian-Yu [1 ]
Ge, Xiao [1 ]
Li, Jian-Tao [1 ]
Sun, Zhi-Guo [2 ]
Wang, Dong-Sheng [1 ]
机构：
[1] Hebei Univ Technol, Sch Civil & Transportation Engn, Tianjin 300401, Peoples R China
[2] China Earthquake Adm, Key Lab Bldg Collapse Mechanism & Disaster Preven, Sanhe, Peoples R China
来源：
ENGINEERING STRUCTURES | 2022年 / 266卷
基金：
中国国家自然科学基金;
关键词：
Stainless reinforcement; Bridge pier; Quasi-static test; Seismic performance; Dual-wave buckling; COLUMNS; BEHAVIOR; BOND; REQUIREMENTS; DAMAGE; SHEAR;
D O I：
10.1016/j.engstruct.2022.114507
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents a set of large-scale quasi-static tests on 6 bridge piers reinforced by stainless steel bars and 4 bridge piers reinforced by conventional carbon steel bars as control specimens to investigate the seismic behaviour of stainless steel reinforced concrete bridge piers. Different reinforcement ratios and axial loads are applied on the columns. The damage progression of the columns during the test is recorded. The experimental result is analysed in terms of force-displacement relation, energy dissipation capacity and ductility to evaluate the seismic performance of bridge piers reinforced by stainless steel bars. It is found that concrete columns with stainless steel reinforcement have similar lateral strength and larger deformation capacities compared to the conventional RC column. However, the application of stainless steel may reduce the energy dissipation capacity of RC columns. Dual-wave buckling of stainless reinforcement and severer concrete cover spalling of columns reinforced by stainless bars are observed in this work.
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页数：14
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