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http://dx.doi.org/10.4334/JKCI.2016.28.5.555

Effect of Transverse Reinforcement on the Shear Friction Capacity of Concrete Interfaces with Construction Joint  

Hwnag, Yong-Ha (Dept. of Architectural Engineering, Kyonggi University, Graduate School)
Yang, Keun-Hyeok (Dept. of Plant.Architectural Engineering, Kyonggi University)
Publication Information
Journal of the Korea Concrete Institute / v.28, no.5, 2016 , pp. 555-562 More about this Journal
Abstract
The objective of the present study is to evaluate the shear transfer capacity of transverse reinforcement at the concrete interfaces with smooth construction joint. The transverse reinforcing bars were classified into two groups: V-type for the arrangement perpendicular to the interface and X-type for inclined-crossing arrangement. The transverse reinforcement ratio at the interface varied from 0.0045 to 0.0135 for V-type and 0.0064 to 0.0045 for X-type. The mechanism analysis proposed for monolithic concrete interface, derived based on the upper-bound theorem of concrete plasticity, was modified to evaluate the shear friction capacity of concrete interfaces with smooth construction joint. Test results showed that the specimens with X-type reinforcement had lower amount of relative slippage at the interface and higher shear friction capacity than the companion specimens with V-type reinforcement. This observation was independent of the unit weight of concrete. The mean and standard deviation of the ratios between the experimental shear friction strength of smooth construction joints and predictions obtained from the proposed model are 1.07 and 0.14, respectively.
Keywords
shear friction capacity; concrete interface; construction joint; relative slippage; transverse reinforcement;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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