Title: Direct and flexural shear strength of composite beam with perforbond rib
Page Range: p.9-18
Author(s): Dooyong Cho; Jinwoong Choi; Hoseong Jeong
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 26
Issue No: No.1
Abstract
When Perfobond Rib shear connectors are used as flexural materials in structures such as bridges, they show flexural shear behaviour due to external force, rather than direct shear behaviour. The aim of this study is thus to analyse the difference between both behaviours. First, we prepared a specimen to analyse direct shear behaviour using Perfobond Rib shear connectors, analysed the characteristics of behaviour with a push-out test and proposed a formula of shear resistance assessment. Proposed formula shows a relatively good fit with less than 10% error. A flexural shear test was then conducted based on the result of the direct shear test. Based on the static flexural test it analysed the flexural behaviour and the flexural shear stress it calculated. Direct shear stress and EN 1994-1-1 to lead and be calculated, it compared the flexural shear stress and it analysed in about the shear resistance stress which it follows in load direction. Finally, we compared both test results, and the comparison showed that the flexural shear stress is approximately 6% stronger than the direct shear stress. 11 refs.
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