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http://dx.doi.org/10.1007/s40069-016-0163-6

Prediction of Shear Strength for Large Anchors Considering the Prying Effect and Size Effect  

Kim, Kangsik (Department of Architectural Engineering, Hanyang University)
Lee, Kwangsoo (Department of Architectural Engineering, Yeoju Institute of Technology)
An, Gyeonghee (Korea Advanced Institute of Science and Technology, Civil & Environmental Engineering)
Publication Information
International Journal of Concrete Structures and Materials / v.10, no.4, 2016 , pp. 451-460 More about this Journal
Abstract
An anchorage system is necessary in most reinforced concrete structures for connecting attachments. It is very important to predict the strength of the anchor to safely maintain the attachments to the structures. However, according to experimental results, the existing design codes are not appropriate for large anchors because they offer prediction equations only for small size anchors with diameters under 50 mm. In this paper, a new prediction model for breakout shear strength is suggested from experimental results considering the characteristics of large anchors, such as the prying effect and size effect. The proposed equations by regression analysis of the derived model equations based on the prying effect and size effect can reasonably be used to predict the breakout shear strength of not only ordinary small size anchors but also large size anchors.
Keywords
large anchor; shear strength; CCD method; 45 degree cone method; bolt diameter; embedment depth; edge distance; prying effect; size effect;
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