Study on bond performance of bamboo-steel interface after long-term loading

被引：0
|
作者：
Li Y. [1 ]
Zhang J. [1 ]
Liu R. [2 ]
Zhang Z. [1 ]
机构：
[1] Faculty of Architectural, Civil Engineering & Environment, Ningbo University, Ningbo
[2] College of Architecture and Environmental Design, Kent State University, Kent
来源：
Zhang, Jialiang (zhangjialiang@nbu.edu.cn) | 2017年 / Science Press卷 / 38期
关键词：
Bamboo-steel composite component; Bamboo-steel interface; Bond performance; Long-term load; Push-out test;
D O I：
10.14006/j.jzjgxb.2017.09.013
中图分类号：
学科分类号：
摘要：
In order to investigate the reliability of bamboo-steel interfacial bonding effect after long-term loading, 27 specimens, which were divided into pure bonding interface specimens and composite bonding interface specimens, were designed to perform push-out tests after long-term loading. Interfacial forms, applied values of the long-term loads and durations of the long-term loads were set as the basic parameters; the interfacial load carrying capacity, shear stress and the bond slip were investigated. The research shows, structural form of bamboo-steel interface is reasonable which remains intact after long-term loading. Interfaces provide with high load carrying capacities and the composite bonding interface specimens possess significant ductility characteristics. After long-term loading, load carrying capacity attenuation occurs in two groups of pure bonding interface, where the attenuation coefficients are 0.91 and 0.81 respectively. Shear stresses and bond slips are greater at the two endpoints and smaller at middle of the pure bonding interfaces, and the corresponding maximum values of the shear stress are 1.41 MPa and 1.25 MPa, which are decreased by 10% and 20% respectively compared with the interfacial shear stress under static loads. Compared with static load experiments, pure bonding interfacial bond slips are increased slightly, and the load carrying capacities, shear stress and bond slips of composite bonding interface remain stable under long-term loading. Self-tapping screws may effectively improve the interfacial shear capacity. When screws are set at an equal spacing of 80 mm, the corresponding maximum value of the shear stress is 1.7 MPa. A bonding capacity calculation method of bamboo-steel interface after long-term loading has been proposed. Interfacial capacities can be calculated, and the calculated values match well with experimental values. © 2017, Editorial Office of Journal of Building Structures. All right reserved.
引用
收藏
页码：110 / 120
页数：10
相关论文
共 13 条
  • [1] Xiao Y., Yang R., Shan B., Et al., Experimental research on mechanical properties of glubam, Journal of Building Structures, 33, 11, pp. 150-157, (2012)
  • [2] Huang D., Zhou A., Bian Y., Experimental and analytical study on the nonlinear bending of parallel strand bamboo beams, Construction and Building Materials, 44, 8, pp. 585-592, (2013)
  • [3] Xiao Y., Chen G., Shan B., Et al., Research and applicant of lightweight glue laminated bamboo frame structure, Journal of Building Structures, 31, 6, pp. 195-203, (2010)
  • [4] Chen X., Wang Z., Bamboo based panels for structural application, World Bamboo and Rattan, 3, 3, pp. 18-20, (2005)
  • [5] Wei Y., Lu Q., Zhang Q., Et al., Design and construction of modern bamboo anti-seismic living room, Construction Technology, 38, 11, pp. 52-54, (2009)
  • [6] Liu W., Yang H., Experimental study on flexural behavior of engineered wood beams, Journal of Building Structures, 29, 1, pp. 90-95, (2008)
  • [7] Zhou N., He M., Finite element analysis of shear walls in light wood-framed houses, Structural Engineers, 26, 6, pp. 37-41, (2010)
  • [8] Li Y., Shen H., Shan W., Et al., Flexural behavior of lightweight bamboo-steel composite slabs, Thin-walled Structures, 53, 2, pp. 83-90, (2012)
  • [9] Li Y., Shen H., Shan W., Et al., Experimental study on shear behavior of I-shaped section bamboo-steel composite beams, Journal of Building Structures, 32, 7, pp. 80-86, (2011)
  • [10] Li Y., Zhang J., Zhang X., Et al., Study on bond stress and bond slip of bamboo-steel interface under static load, Journal of Building Structures, 36, 10, pp. 114-123, (2015)
12