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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Hysteresis Model for Concrete Anchors Subjected to Shear Loading
Author(s): Patricio Quintana Gallo, Masoud Moghaddasi, Stefano Pampanin, and Athol J. Carr
Publication: Structural Journal
Appears on pages(s): 5-16
Keywords: anchor(s); dynamic response; hysteresis model; nonstructural components (NSCs); numerical prediction; shake-table test; shear loading
Abstract:This paper presents a new hysteresis model for post-installed fasteners anchoring nonstructural components (NSCs) to concrete structures, or structural concrete members to each other, such that they must resist seismic shear actions. Focusing on NSCs, the hysteresis model was initially calibrated with quasi-static tests of an expansion anchor, and was implemented in the numerical model of a shake-table NSC assembly to predict its response. The initially calibrated model predicted the experimental acceleration response of the NSCs during two tests, with RMS errors of less than 10%, but overestimated the amplitude up to 50%. Minor tuning of the model using the first test results reduced the RMS and amplitude errors for the second test to 5% and 15%, respectively. It was concluded that the developed anchor model constitutes a simple and powerful tool for numerically representing the hysteresis of anchor connections subjected to shear and evaluating the response of the NSCs they fix.
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