Normal and tangential extraction of embedded anchor plates from precast facade concrete panels

摘要

This paper presents a study of steel anchors in precast facade concrete panels subjected to normal and tangential extraction forces. It focuses on four types of inexpensive non-certified anchorages, fairly used in the precast concrete industry, but not properly covered by design standards. The experimental programme consists of twenty-four extraction tests that are used to validate a three-dimensional fracture model by comparing both load-displacement curves and extraction crack-patterns. Experimental and numerical extraction loads are also compared with the ones resulting from analytical design methods for anchorages under the European Standard ETAG 001, while discussing the problems of their application to these non-certified anchorages. Finally, we perform an extensive parametric analysis on the anchor plate extraction resistance. The distance of the plate to the edge of the panel resulted the most influential factor. (C) 2015 Elsevier Ltd. All rights reserved.