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Shin, Myoungsu
Sustainable Structural Systems Lab
Research Interests
  • Seismic design, Tall buildings, High performance composites, Non-destructive evaluation

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Concrete contribution to initial shear strength of RC hollow bridge columns

Cited 3 times inthomson ciCited 2 times inthomson ci
Title
Concrete contribution to initial shear strength of RC hollow bridge columns
Author
Kim, Ick-HyunSun, Chang-HoShin, Myoungsu
Keywords
Area ratios; Concrete contribution; Cyclic loadings; Design parameters; Displacement ductility; Empirical equations; Hollow bridge columns; Hollow columns; Hollow section; Lateral loading; Lateral loads; Linear patterns; Loading history; Monotonic loading; Primary objective; Shear models
Issue Date
201201
Publisher
TECHNO-PRESS
Citation
STRUCTURAL ENGINEERING AND MECHANICS, v.41, no.1, pp.43 - 65
Abstract
The primary objective of this study was to identify concrete contribution to the initial shear strength of reinforced concrete (RC) hollow columns under lateral loading. Seven large-scale RC rectangular hollow column specimens were tested under monotonic or cyclic lateral loads. The most important design parameter was column length-to-depth aspect ratio ranging between 1.5 and 3.0, and the other test variables included web area ratio, hollow section ratio, and loading history. The tests showed that the initial shear strength reduced in a linear pattern as the column aspect ratio increased, and one specimen tested under cyclic loading achieved approximately 83% of the shear strength of the companion specimen under monotonic loading. Also, several pioneering shear models proposed around the world, all of which were mainly based on tests for columns with solid sections, were reviewed and compared with the test results of this study, for their possible applications to columns with hollow sections. After all, an empirical equation was proposed for concrete contribution to the initial shear strength of RC hollow columns based on fundamental mechanics and the test results.
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ISSN
1225-4568
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