Preprint Article Version 1 This version is not peer-reviewed

Numerical Approach to Determine the Resistance of Threaded Anchors in UHPFRC

Version 1 : Received: 26 September 2024 / Approved: 26 September 2024 / Online: 27 September 2024 (00:15:54 CEST)

How to cite: Hochuli, A.; Brühwiler, E. Numerical Approach to Determine the Resistance of Threaded Anchors in UHPFRC. Preprints 2024, 2024092131. https://doi.org/10.20944/preprints202409.2131.v1 Hochuli, A.; Brühwiler, E. Numerical Approach to Determine the Resistance of Threaded Anchors in UHPFRC. Preprints 2024, 2024092131. https://doi.org/10.20944/preprints202409.2131.v1

Abstract

In this study, the structural behavior of a short threaded anchor with a 20 mm diameter and an embedment length of 50 mm (2.5Ø) in UHPFRC is investigated using non-linear Finite Element models. UHPFRC is assumed to exhibit tensile strain-hardening behavior, with tensile strengths of 7 MPa and 11 MPa, respectively. The modelled anchor was subjected to a continuously increasing uniaxial pull-out force. The results indicate that the fracture mechanism of threaded anchors in UHPFRC is primarily characterized by the formation of a tensile membrane within the UHPFRC, which acts as the main resisting element against the pull-out force. Additionally, the influence of UHPFRC's tensile properties on the pull-out behavior and ultimate resistance of the threaded anchors was determined.

Keywords

short anchorage; threaded anchor; numerical simulation; structural behavior; pull-out force

Subject

Engineering, Architecture, Building and Construction

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