Bond strength of cement grouted glass fibre reinforced plastic (GFRP) anchor bolts |
| |
| Affiliation: | 1. Department of Civil Engineering, Université de Sherbrooke, Sherbrooke, Quebec, Canada J1K 2R1;1. Department of Civil Engineering, University of Calabria, Italy;2. Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Italy;1. Department of Civil and Environmental Engineering, Portland State University, P. O. Box 751, Portland, OR 97207, United States;2. Roads and Transportations Engineering Department, University of Al-Qadisiyah, Diwaniyah, Iraq;3. Department of Civil and Environmental Engineering, Politecnico di Milano, Milan, Italy;4. World Bank Financed Projects, Ministry of Education, Baghdad, Iraq;5. Civil and Environmental Engineering, Arthur M. James Professor of Structural Engineering, Department of Civil and Environmental Engineering, Portland State University, OR, United States;1. Department of Civil Engineering, Royal Military College of Canada, Kingston, Ontario, K7K7B4, Canada;2. Department of Geological Sciences and Geological Engineering, Queen''s University, Kingston, Ontario, K7L3N6, Canada;1. School of Mining Engineering, UNSW SYDNEY, NSW, Australia;2. Open Laboratory for Deep Mine Construction, Henan Polytechnic University, Jiaozuo 454033, China;1. School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, PR China;2. Central Research Institute of Building and Construction Co., Ltd, MCC, Beijing 100088, PR China;3. School of Transportation, Southeast University, Nanjing 210096, PR China |
| |
| Abstract: | Fibre reinforced plastic (FRP) has recently been introduced in the market in the form of bars for grouted anchor bolts. The resistance to corrosion and chemical attacks, high strength-to-weight ratio, low electromagnetic properties and ease in handling of these bars make them a better alternative to steel in some applications of grouted anchor bolts. However, to fully utilise FRP bars as tendons for cement grouted anchors, some aspects of their behaviour have to be determined, including load carrying capacity, bond strength in cement grout, long-term strength and durability in alkaline environments. In this paper, the load carrying capacity and bond strength of cement grouted glass fibre reinforced plastic (GFRP) anchor bolts are discussed in comparison with steel anchor bolts. The results of laboratory and field pull-out tests of GFRP and steel bars anchored with cement grout are presented. The pull-out tests were conducted on four types of GFRP bars and two types of steel bars installed in concrete blocks and rock mass. The experimental results have shown that the bond strength of GFRP bar anchor bolts is close to that of steel bar anchor bolts. The slip at failure of GFRP bars relative to the cement grout is greater than that of steel bars, mainly due to their low modulus of elasticity. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
