Interfacial shear behavior of a high-strength pile to sleeve grouted connection SCIE SCOPUS

Cited 16 time in WEB OF SCIENCE Cited 18 time in Scopus
Title
Interfacial shear behavior of a high-strength pile to sleeve grouted connection
Author(s)
Lee, Jeong-Hwa; Won, Deok-Hee; Jeong, Youn-Ju; Iim, Seong-Hwan; Kang, Young-Jong
KIOST Author(s)
Won, Deokhee(원덕희)
Publication Year
2017-11-15
Abstract
A grouted connection is a type of structural composite connection member produced from two different sized steel tubes and a grout annulus between them. The grouted connection has been widely used in offshore oil and gas platforms and wind turbine structures by simply grouting between the pile and sleeves. In general, the axial compression strength of the connection is known to be affected by the grout strength, shear-key spacing and radial stiffness parameters of the composite section. In this study, concentric and eccentric loading tests were performed to investigate the interfacial shear behavior of the high-strength grouted connections according to the shear-key spacings. The interface shear behaviors, focusing on the strength, failure mode, and strain of the grout and steel tubes, were evaluated by tests and finite element (FE) analysis. The test results showed that the primary strength of the connection was mainly affected by the grout strength, whereas the ultimate strength was affected by the yield strength of the sleeves and the friction coefficient between the steel tubes and grout. It was also concluded that the test results on the high-strength grouted connections were similar to those of previous studies on normal-strength grouted connections, and the eccentric loading did not reduce the axial capacity of the connection. Although the ultimate failure modes of the connections could not be considered in the current design equations, they may contribute to the safe design of high-strength grouted connections. (C) 2017 Elsevier Ltd. All rights reserved.
ISSN
0141-0296
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1120
DOI
10.1016/j.engstruct.2017.08.035
Bibliographic Citation
ENGINEERING STRUCTURES, v.151, pp.704 - 723, 2017
Publisher
ELSEVIER SCI LTD
Subject
CONCRETE
Keywords
High-strength grout; Grouted connection; Offshore wind turbine; Shear-key spacing; Eccentric loading; Composite structure; Offshore structure; Interfacial shear behavior; Experimental study; Finite element analysis
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCI LTD
Related Researcher
Research Interests

Ocean and coastal engineering,Structural engineering,Fire engineering,해양해안공학,구조공학,화재공학

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