Seismic Performance of BFRP-Reinforced Low-Strength Concrete Circular Columns with High Axial Compression Ratio

被引：0
|
作者：
Huang J. [1 ]
Zhu D. [2 ]
Gao P. [1 ,3 ]
Zhou A. [1 ]
Dai L. [4 ]
机构：
[1] School of Civil Engineering, Hefei University of Technology, Hefei
[2] School of Civil Engineering and Architecture, Ningbo Tech University, Ningbo
[3] Key Laboratory of Performance Evolution and Control for Engineering Structures of Ministry of Education, Tongji University, Shanghai
[4] Anhui Construction Engineering Group Incorporated Company, Hefei
来源：
Gao, Peng (penggao@hfut.edu.cn) | 2020年 / Tongji University卷 / 23期
关键词：
Basalt fiber; Low cyclic lateral loading; Reinforced concrete circular column; Seismic performance; Strengthening;
D O I：
10.3969/j.issn.1007-9629.2020.06.015
中图分类号：
学科分类号：
摘要：
To investigate the seismic behavior of fiber reinforced plastic(FRP) confined circular reinforced concrete columns with high axial compression ratio and low-strength concrete, six confined columns and three control columns were tested under low cyclic lateral load. The results show that after confinement, the failure modes of columns change into flexural failure. The strength, ductility and energy dissipation capacity of columns are improved significantly, and the FRP can provide good confinement especially for columns with high axial compression ratio and low-strength concrete. With the same lateral confining stress, the peak load of basalt FRP(BFRP) and carbon FRP(CFRP) confined columns are similar, but the former has better ductility and energy dissipation capacity. Based on the test results, modified equations of peak load and displacement ductility factor are proposed. © 2020, Editorial Department of Journal of Building Materials. All right reserved.
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页码：1366 / 1373
页数：7
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