全螺纹GFRP抗浮锚杆与混凝土底板黏结锚固性能的试验研究

doi:10.11896/cldb.18080024

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Abstract In order to promote the use of the GFRP anchor in hydraulic structure such as hydropower station, pump house, sluice, and so on, we conducted an in-site full-scale pullout test for 12 full-thread GFRP anti-floating anchors and 10 thread steel anti-floating anchors and researched the anchorage properties of the GFRP anti-floating anchor in concrete floor. The test results show that the failure load value of the straight GFRP anchor, similar to that of the steel anchor, proves the feasibility of the GFRP anchor applying in the anti-floating project. Bending disposal, ho-wever, is not beneficial to improving the bearing capacity of the GFRP anchor. The longer the diameter and anchorage length of the GFRP anchor are, the higher the bearing capacity will be. Additionally, because the elasticity modulus is similar to both GFRP anchor and concrete, their coo-perative working effect is better than that of the steel anchor, which contributes to a linear rule for the load-slip curve of the GFRP anchor and be different with the two-broken-line load-slip curve of the steel anchor. The displacement of the GFRP anchor can be restricted effectively by the method of increasing the anchor diameter and anchorage length. We also deduced the basic anchorage length of the GFRP anchor, and the fai-lure mode accordance with the calculation result is same with the test phenomenon.

Key words： GFRP anti-floating anchor concrete floor pullout test failure load load-slip curve basic anchorage length

Published: 31 July 2019

CLC number:

TU599

Fund:This work was financially supported by the National Natural Science Foundation of China (51708316, 51778312, 51809146), the China Postdoctoral Science Foundation Funded Project (2018M632641), the Shandong Key Research and Development Program (2017GSF16107, 2018GSF117008), the Shandong Provincial Natural Science Foundation of China (ZR2016EEQ08).

About author:: Xiaoyu Bai, is an associated professor of Civil Engineering at Qingdao University of Technology. He earned his doctorate degree in Civil Engineering from Qingdao University of Technological in Jul. 2015. His area of expertise comprises the application of FRP materials in geotechnical engineering, foundation engineering and geotechnical anchoring. He is a reviewer of the National Natural Science Foundation of China, a member of the Editorial Committee of Engineering Investigation, Journal of Geotechnical Engineering, and Geotechnical Mechanics. In the past five years, he was in charge of 7 research projects including the National Natural Science Foundation of China, the Shandong Provincial Key Research and Development Program, the China Postdoctoral Science Foundation and so on. He has published 43 journal articles, including 21 EI articles and 3 SCI (first author and corresponding author). He was also authorized 24 national invention patents. He received many rewards, including one Third Prizes for Scientific and Technological Progress in Qingdao (2017), one Second Prize for Scientific and Technological Progress in Qingdao (2015), two Second Prizes for Science and Technology in Shandong Province (2017), and one First Prize for Science and Technology of the China Business Federation (2018).
>Mingyi Zhang is a secondary professor of Civil Engineering. He holds a Ph.D. and is a doctoral tutor. He is a discipline leader of "Geotechnical Engineering" in the key discipline of Shandong Province. He is State Council Expert for Special Allowance, and the director of geotechnical engineering institute of Qingdao University of Technological. His interests lie in foundation engineering and green geotechnical engineering. He has four projects funded by National Natural Science Foundation and the 1 item of the National 11th Five-year Science and Technology Support Program. In addition, he has 2 special research fund projects for doctoral disciplines in higher education institutions of the Ministry of Education and 1 key research and development program in Shandong Province. He was awarded one second prize for scientific and technological progress in Shandong Province, one third prize for China Construction Science and Technology, one third prize for scientific and technological progress in Shandong Province, and one first and second prize for scientific and technological progress in Qingdao.

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	BAI Xiaoyu
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	LIU Junwei
	YAN Nan

Cite this article:

BAI Xiaoyu,KUANG Zheng,ZHANG Mingyi, et al. Experimental Investigation for the Bonding and Anchoring Property of the Full-thread GFRP Anti-floating Anchor in Concrete Floor[J]. Materials Reports, 2019, 33(18): 3035-3042.

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http://www.mater-rep.com/EN/10.11896/cldb.18080024 OR http://www.mater-rep.com/EN/Y2019/V33/I18/3035

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