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Title: Anchor Performance in Cyclically Loaded Shear Walls

Author(s): Gloria Faraone, Tara C. Hutchinson, Roberto Piccinin, and John F. Silva

Publication: Structural Journal

Volume: 119

Issue: 6

Appears on pages(s): 35-51

Keywords: or testing; anchors; concrete damage; crack pattern; crack width; performance limit state; reinforced concrete shear wall

Date: 11/1/2022

Abstract:
Cracks and damage occurring in concrete members as a result of earthquake-induced ground motion may impact the performance of anchors installed in those members. To investigate this issue, an earlier experimental study examined the response of tension-loaded anchors installed in a slender full-scale reinforced concrete shear wall subjected to cyclic loading. The present effort extends that investigation to anchors installed in full-scale low-aspect-ratio concrete shear walls. The test walls, described in a companion paper, were detailed with minimum horizontal reinforcement to ensure a range of crack types with appreciable distribution throughout the wall. The load and displacement histories of the anchors are analyzed to characterize their performance under a variety of concrete damage states. The anchor axial strength reduction is estimated at key performance limit states typical of concrete shear walls to provide a link between structural performance and anchor response. Finally, the residual tension capacity of the anchors is assessed in contrast with the concrete damage distribution in the wall.


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Electronic Structural Journal



  

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