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http://dx.doi.org/10.18419/opus-13664
Autor(en): | Jebara, Khalil Sharma, Akanshu Ožbolt, Joško |
Titel: | Design recommendations for concrete pryout capacity of headed steel studs and post-installed anchors |
Erscheinungsdatum: | 2023 |
Dokumentart: | Zeitschriftenartikel |
Seiten: | 782-807 |
Erschienen in: | CivilEng 4 (2023), S. 782-807 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-136836 http://elib.uni-stuttgart.de/handle/11682/13683 http://dx.doi.org/10.18419/opus-13664 |
ISSN: | 2673-4109 |
Zusammenfassung: | Current formulas to assess the shear capacity of headed steel stud anchors and post-installed (PI) anchors in case of pryout failure (sometimes known as pull-rear failure) have been derived either based on the indirect-tension resistance model or are fully empirical based on push-out test results. In both cases, the predicted pryout capacity is clearly conservative and underestimates the true pryout capacity of anchorages, especially for stiff anchors with low embedment-to-diameter ratios (hef/d < 4.5). This paper proposes an empirical and a semi-empirical formula to predict the concrete pryout capacity of headed steel studs and PI anchors. They were derived based on an improved indirect-tension model which accounts for the stud diameter and the stud spacing in a group of anchors. Furthermore, a database of 214 monotonic shear tests from the literature, including own tests (push-off and horizontally shear tests), is reevaluated and compared to the provisions of EN1992-4. The scope of this assessment proposal includes single and group of headed steel studs and PI anchors attached to a stiff steel plate as well as shear connectors in composite structures without metal deck embedded in normal-weight concrete. |
Enthalten in den Sammlungen: | 02 Fakultät Bau- und Umweltingenieurwissenschaften |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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civileng-04-00044-v3.pdf | 3,74 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons