Evaluierung der zentrischen Resttragfähigkeit von randnahen Verbundankern nach erfolgtem Betonkantenbruch
|Published in:||Beton- und Stahlbetonbau, March 2016, n. 3, v. 111|
Evaluation of the residual capacity in tension on bonded anchors close to the edge after concrete edge failure
The state of the art design concept for anchorages in concrete leads to partly conservative results especially for fastenings close to the edge under shear load or subsequently under inclined load. Former investigations concerning the improvement of the actual design concept for anchorages close to the edge under inclined load show that such fastening situations have a residual capacity, although the first anchor row has already failed under shear load due to concrete edge failure. Therefore, the provision of this residual capacity can increase the performance of the design concept. Due to the lack in the quantitative range of the residual capacity, the scale of these forces was identified based on experimental tests within this article. Hence single bonded anchors close to the edge are loaded in a first step with a shear load towards the free edge until the concrete edge fails and afterwards the centric residual capacity is determined.
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