A Plate Type Edge-Lift Anchor: Shear Reinforcement Influence on Failure Loads

The published standard [1] and Industry code of precast practice [2] do not provide a recommendation for calculating the shear capacity of edge-lifting anchors (which are normally placed in the edge of thin wall elements) and are commonly used in the precast industry throughout Australia. These anch...

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Bibliographic Details
Main Authors: Barraclough, Andrew, Lloyd, Natalie
Other Authors: Not listed
Format: Conference Paper
Published: Engineers Australia 2012
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/43045
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author Barraclough, Andrew
Lloyd, Natalie
author2 Not listed
author_facet Not listed
Barraclough, Andrew
Lloyd, Natalie
author_sort Barraclough, Andrew
building Curtin Institutional Repository
collection Online Access
description The published standard [1] and Industry code of precast practice [2] do not provide a recommendation for calculating the shear capacity of edge-lifting anchors (which are normally placed in the edge of thin wall elements) and are commonly used in the precast industry throughout Australia. These anchors experience loads under tension or combined tension and shear during the lifting process. A load applied perpendicular to an anchor is commonly referred to as a shear load. When a shear load is applied, the anchor reinforcement, typically a shear bar, will provide the majority of the concrete breakout strength. This paper is an evaluation of anchor shear reinforcement test data for edge lift plate anchors in thin walled elements. References and comparisons are made with the formula in ACI 318M-08 [3], which was developed for cast-in anchors, and comparisons of the predicted capacity and the tested shear concrete breakout capacity of the edge lift anchors, with shear reinforcement, is made. Data is presented on 137 tests; the variables tested include concrete compressive strength at time of testing, anchor width, panel thickness, shear reinforcement embedment depth and shear reinforcement diameter. What this paper shows is that the mechanical interactions of a typical shear bar design does behave in a way that can be suitably predicted by the model presented in ACI318M-08 D5.2. This paper examines the failure mechanisms of a typical shear bar and highlights potential installation issues.
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spelling curtin-20.500.11937-430452017-02-28T01:45:42Z A Plate Type Edge-Lift Anchor: Shear Reinforcement Influence on Failure Loads Barraclough, Andrew Lloyd, Natalie Not listed anchor capacity shear reinforcement lifting inserts lateral tensile loads in precasting plate anchors shear lifting precast Edgelift anchors The published standard [1] and Industry code of precast practice [2] do not provide a recommendation for calculating the shear capacity of edge-lifting anchors (which are normally placed in the edge of thin wall elements) and are commonly used in the precast industry throughout Australia. These anchors experience loads under tension or combined tension and shear during the lifting process. A load applied perpendicular to an anchor is commonly referred to as a shear load. When a shear load is applied, the anchor reinforcement, typically a shear bar, will provide the majority of the concrete breakout strength. This paper is an evaluation of anchor shear reinforcement test data for edge lift plate anchors in thin walled elements. References and comparisons are made with the formula in ACI 318M-08 [3], which was developed for cast-in anchors, and comparisons of the predicted capacity and the tested shear concrete breakout capacity of the edge lift anchors, with shear reinforcement, is made. Data is presented on 137 tests; the variables tested include concrete compressive strength at time of testing, anchor width, panel thickness, shear reinforcement embedment depth and shear reinforcement diameter. What this paper shows is that the mechanical interactions of a typical shear bar design does behave in a way that can be suitably predicted by the model presented in ACI318M-08 D5.2. This paper examines the failure mechanisms of a typical shear bar and highlights potential installation issues. 2012 Conference Paper http://hdl.handle.net/20.500.11937/43045 Engineers Australia restricted
spellingShingle anchor capacity
shear reinforcement
lifting inserts
lateral tensile loads in precasting
plate anchors
shear lifting
precast
Edgelift anchors
Barraclough, Andrew
Lloyd, Natalie
A Plate Type Edge-Lift Anchor: Shear Reinforcement Influence on Failure Loads
title A Plate Type Edge-Lift Anchor: Shear Reinforcement Influence on Failure Loads
title_full A Plate Type Edge-Lift Anchor: Shear Reinforcement Influence on Failure Loads
title_fullStr A Plate Type Edge-Lift Anchor: Shear Reinforcement Influence on Failure Loads
title_full_unstemmed A Plate Type Edge-Lift Anchor: Shear Reinforcement Influence on Failure Loads
title_short A Plate Type Edge-Lift Anchor: Shear Reinforcement Influence on Failure Loads
title_sort plate type edge-lift anchor: shear reinforcement influence on failure loads
topic anchor capacity
shear reinforcement
lifting inserts
lateral tensile loads in precasting
plate anchors
shear lifting
precast
Edgelift anchors
url http://hdl.handle.net/20.500.11937/43045