Experimental Study on Seismic Performance of Plastic Steel Fiber Reinforced Lightweight Aggregate Concrete Hollow Columns

被引：0
|
作者：
Xiang Z. [1 ]
Zhou J. [1 ]
Niu J. [1 ,2 ]
Li J. [1 ]
Xu Y. [1 ]
机构：
[1] School of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou
[2] Inner Mongolia Technical College of Construction, Hohhot
来源：
Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering | 2022年 / 30卷 / 03期
关键词：
Hollow column; Lightweight aggregate concrete; Low reversed cyclic loading; Plastic steel fiber; Seismic performance; The hysteresis curve;
D O I：
10.16058/j.issn.1005-0930.2022.03.006
中图分类号：
学科分类号：
摘要：
Taking volume stirrup ratio (0.67%, 1.26%, 2.01%), shear span ratio (2.8, 3.6, 4.4) and hollow section condition (solid, partial hollow, whole height hollow) as variables, 6 plastic-steel fiber reinforced lightweight aggregate concrete hollow columns and 1 plastic-steel fiber reinforced lightweight aggregate concrete solid columns were designed. The low reversed cyclic loading was applied to them to obtain the hysteresis curve, skeleton curve, cumulative energy consumption curve and stiffness degradation curve. The comparative analysis shows that the failure modes of hollow columns can be divided into shear failure, bending shear failure and bending failure. The specimen with shear span ratio of 2.8 was shear failure, the specimen with shear span ratio of 4.4 and a volume stirrup ratio of 1.26% and 2.01% were bending failure, and the rest were bending shear failure. Compared with the specimen with 0.67% volume stirrup ratio, the displacement ductility coefficients of the specimens with 1.26% and 2.01% volume stirrup ratio increased by 12.8% and 47.9% respectively. Compared with the specimen with 2.8 shear span ratio, the displacement ductility coefficients of the specimens with 3.6 and 4.4 shear span ratios increased by 51.1% and 53.1% respectively. It indicates that the volume stirrup ratio and shear span ratio have a great influence on the ductility of hollow columns. Comparing the cumulative energy consumption and stiffness degradation of hollow columns, it can be seen that with the increase of volume stirrup ratio and shear span ratio, the energy dissipation capacity of hollow columns increases, while the rate of stiffness degradation decreases, and the hollow condition has relatively little influence on the seismic performance of the specimens. © 2022, The Editorial Board of Journal of Basic Science and Engineering. All right reserved.
引用
收藏
页码：579 / 591
页数：12
相关论文
共 15 条
  • [1] Wu Tao, Liu Xi, Wei Hui, Et al., Experimental study on shear behavior and size effect of high strength lightweight aggregate concrete deep flexural members, Journal of Building Structures, 41, 6, pp. 119-132, (2020)
  • [2] Wei Hui, Wu Tao, Sun Lixin, Et al., Research on shear damage evolution and serviceability performance of deep flexural members with high strength lightweight aggregate concrete, Engineering Mechanics, 37, 8, pp. 40-54, (2020)
  • [3] Code for design of concrete structures:GB 50010-2010, (2010)
  • [4] Yang Yong, Zeng Susheng, Nie Jianguo, Et al., Experimental study on mechanical behavior of plain steel plate-light weight concrete hollow composite decks, Journal of Building Structures, 31, 11, pp. 92-101, (2010)
  • [5] Zhang Jianwen, Wu Shuaitao, Finite element analysis of anti-seismic property of steel reinforced lightweight concrete frame joints, China Civil Engineering Journal, 47, S2, pp. 164-168, (2014)
  • [6] Technical specification for lightweight aggregate concrete structures:JGJ 12-2006, (2006)
  • [7] Niu Jiangang, Hao Ji, Sun Libin, Et al., Research on bond-anchorage behavior between deformed bars and HPP fiber reinforced lightweight aggregate concrete, Engineer Mechanics, 34, 2, pp. 42-49, (2017)
  • [8] Wang Huailiang, Strength and deformation properties of high performance steel fiber reinforced lightweight concrete under multiaxial compression, Engineering Mechanics, 36, 8, pp. 122-132, (2019)
  • [9] Lignola G P, Prota A, Manfredi G, Et al., Experimental performance of RC hollow columns confined with CFRP[J], Journal of Composites for Construction, 11, 1, pp. 42-49, (2007)
  • [10] Yeh Y K, Mo Y L, Yang C Y., Seismic performance of rectangular hollow bridge columns[J], Journal of Structural Engineering, 128, 1, pp. 60-68, (2002)
12