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http://dx.doi.org/10.11112/jksmi.2014.18.6.021

An Experimental Study on the Bonding Characteristic of Steel Tubular Joint Connection filled with Fiber Reinforced High Performance Cementeous Grout  

Oh, Hong-Seob (경남과학기술대학교 토목공학과)
Seo, Gyo (경남과학기술대학교 토목공학과)
Kim, Sang-Hyeon (제트콘코리아 기술연구소)
Ko, Sang-Jin (제트콘코리아 기술연구소)
Lee, Hyeon-Gi (한양대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.18, no.6, 2014 , pp. 21-29 More about this Journal
Abstract
This paper deals with the bonding characteristic of grouted joint connections of monopile support structures for offshore wind power facilities. For the integration of pile connection of wind power supporting structure, fiber reinforced high performance cementeous grout was developed and the ultimate compressive strength of it is 125MPa and the direct tensile strength is 7.5 MPa at 7 days. To assess the bond strength of grout filled in pile connection, small scaled direct bond tests under axially loaded was performed and analyzed according the existing guidelines. The fiber volume fraction (0%, 0.5% and 0.9%), aspect ratio of fiber (60 and 80) and the ratio of height to spacing of shear key (0.013 and 0.056) were adopted as the experimental variables. From the test results, the maximum bond strength among the all specimens was 30.8MPa and the bond strength of grouted connection was affected by the ratio of height to spacing of shear key than the fiber volume fraction.
Keywords
Bond strength; Grouted joint connections; High performance fiber reinforced grout; Shear key;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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