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http://dx.doi.org/10.12814/jkgss.2013.12.4.077

The Evaluation for Pullout Performance of Steel Strip Reinforcements with Deformed-Bars as Transverse Members  

Jung, Sung-Gyu (School of Geo-Space Engineering, Univ. of Science & Technology)
Kim, Juhyong (Geotechnical Engineering Division, Korea Institute of Construction Technology)
Cho, Samdeok (Geotechnical Engineering Division, Korea Institute of Construction Technology)
Lee, Kwangwu (Geotechnical Engineering Division, Korea Institute of Construction Technology)
Publication Information
Journal of the Korean Geosynthetics Society / v.12, no.4, 2013 , pp. 77-86 More about this Journal
Abstract
Laboratory pullout tests were conducted to evaluate pullout performance of steel strip reinforcements with deformed steel bars as transverse members. The steel strip reinforcement has an installation hole to assemble a deformed steel bar. Jumunjin standard sand is used to form a relative density of ground model to 80%. Frictional resistance of steel strip reinforcement without transverse member increases sharply at the initial displacement and quickly decreases with displacement. Maximum frictional resistance increases linearly as normal pressure increasing, and soil-reinforcement interaction friction angle(${\rho}_{peak}$) of a steel strip reinforcement is estimated to $14.64^{\circ}$. Passive resistance increases with displacement and converge into maximum passive resistance in most cases. Maximum passive resistance increases linearly as normal pressure increasing irrespective of shape of the steel reinforcement. Pullout force of steel strip reinforcements with installation holes or transverse members largely increases about 4 to 7 times compared to frictional resistance force of steel strip reinforcements when embedment length($L_e$) of steel strip reinforcements is 500 mm. In the case of using 2 transverse members, interference effect is observed due to the spacing of 2 transverse members and location of assembly holes and transverse members.
Keywords
Steel strip reinforcement; Transverse member; Deformed steel bar; Pullout test; Passive resistance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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