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Title: Behaviour of Fasteners Under Monotonic or Cyclic Shear Displacements

Author(s): E. Vintzelou and R. Eligehausen.

Publication: Symposium Paper

Volume: 130


Appears on pages(s): 181-204

Keywords: cracking (fracturing); cyclic loads; failure; fasteners; hysteresis, shear properties; Structural Research

DOI: 10.14359/1272

Date: 1/1/1992

An experimental program was carried out to investigate the behavior of metallic fasteners (undercut, torque-controlled, expansion, and chemical anchors) embedded in cracked concrete and subjected to shear displacements. The results show that the behavior of all three types of anchors under shear displacements is similar. Fasteners situated close to an edge and loaded towards the edge exhibit brittle concrete failure. Cyclic loadings are possible only for displacements that are much lower than the values corresponding to the monotonic peak load. Fastenings away from an edge will cause steel failure with large displacements. During cyclic loading, a severe force-response degradation was observed. Empirical formulas are proposed to predict the strength of anchors, as well as strength degradation during cyclic loading.


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