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Load Bearing Behaviour of Plastic Anchors in Cracked Concrete

Author(s):

Medium: journal article
Language(s): English
Published in: Beton- und Stahlbetonbau, , v. 102
Page(s): 22-30
DOI: 10.1002/best.200710101
Abstract:

Plastic anchors consist of a plastic sleeve and a steel expansion element. The expansion element is screwed or hammered into the plastic sleeve. This impresses a radial strain on the plastic.

The visco-elastic deformation behaviour of the plastic strongly influences the load bearing behaviour of plastic anchors in cracked and uncracked concrete. In uncracked concrete, the expansion forces of plastic anchors in concrete decrease with time due to relaxation of the plastic. A crack running through the centre of the drilled hole of a plastic anchor further reduces the expansion force of the anchor. However, if the crack width stays constant, the expansion force increases with time after cracking. The coefficient of friction between plastic sleeve and concrete increases in cracked and uncracked concrete with time. Hence the pullout failure loads of plastic anchors also increase in cracked and uncracked concrete with time.

Available from: Refer to publisher
Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1002/best.200710101.
  • About this
    data sheet
  • Reference-ID
    10030618
  • Published on:
    04/03/2008
  • Last updated on:
    15/08/2014
 
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