Experimental study on seismic behavior of plastic-steel fiber reinforced lightweight aggregate concrete hollow columns

被引：0
|
作者：
Niu J. [1 ]
Bian Y. [1 ]
Xu Y. [1 ]
机构：
[1] College of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2020年 / 41卷
关键词：
Hollow column; Plastic-steel fiber lightweight aggregate concrete; Quasi-static test; Seismic performance; Shear capacity;
D O I：
10.14006/j.jzjgxb.2020.S2.0026
中图分类号：
学科分类号：
摘要：
Six specimens of plastic-steel fiber lightweight aggregate concrete hollow columns and one specimen of plastic-steel fiber lightweight aggregate concrete solid column were tested under quasi-static to study the seismic behavior of plastic-steel fiber lightweight aggregate concrete hollow columns. The research focused on failure mode, hysteretic behavior, energy dissipation capacity and shear bearing capacity of specimens. The test results show that, the hollow ratio and the opening form have great influence on the seismic behavior of hollow columns. The seismic behavior of plastic-steel fiber lightweight aggregate concrete hollow columns is similar to that of solid columns at small hollow ratios, and the ductility will increase slightly with the increase of hollow ratios. The ductility and energy dissipation capacity of round hole hollow column is better than that of square hole hollow column, and with the increase of hollow ratio, the difference between them becomes obvious. The shear capacity of hollow columns with round holes is slightly insufficient, and the difference between them will not change with hollow ratio. On this basis, the formula for calculating the shear capacity of plastic-steel fiber reinforced lightweight aggregate concrete hollow columns was established, and the calculated values were in good agreement with the experimental values. © 2020, Editorial Office of Journal of Building Structures. All right reserved.
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页码：235 / 243
页数：8
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