Title:
Tensile Resistance of Steel-Reinforced Anchorages: Experimental Evaluation
Author(s):
Jose Henriques, Jose Maria Raposo, Luis Simoes da Silva, and Luis Costa Neves
Publication:
Structural Journal
Volume:
110
Issue:
2
Appears on pages(s):
239-250
Keywords:
anchorage failure; hanger reinforcement; headed anchors (fasteners); tension tests
DOI:
10.14359/51684404
Date:
3/1/2013
Abstract:
One of the research topics related to composite steel-concrete structures is the connection between steel and concrete members—namely, the design of the anchorages. Because the design of steel-reinforced anchorages using the available methodologies (namely, from the CEB Design Guide, CEN/TS 1992-4, and ACI 318-08) may lead to excessively conservative results, experimental studies were conducted at the Civil Engineering Department of the University of Coimbra dealing with cast-in-place headed anchors. The aim of this study is the evaluation of the effect of hanger reinforcement on the behavior of steel-headed anchors embedded in concrete subjected to tension loads. A total of 40 laboratory tests, divided into two groups, were performed, dealing with plain concrete; hanger and usual grid surface reinforcement; and the variation of the member thickness, embedment depth, and proximity of the concrete member edges. Some conclusions from the tests are analyzed and discussed.