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Anchorage of composite dowels in UHPC under fatigue loading

Autor(en):


Medium: Fachartikel
Sprache(n): Englisch
Veröffentlicht in: Structural Concrete, , n. 2, v. 17
Seite(n): 183-193
DOI: 10.1002/suco.201500034
Abstrakt:

In steel-concrete composite structures, innovative composite dowels can be used for the connection of ultra-high-performance concrete (UHPC) slabs and high-strength steel members. In addition to sufficient shear capacity, composite dowels have to ensure the transmission of tensile forces in the composite connection in order to prevent lifting of the concrete slab. This may lead to structural problems, particularly in the very slender concrete slabs of high-strength composite beams, where composite dowels have very small embedment depths. Although findings concerning the structural anchorage behaviour of composite dowels under static loads are already available, studies on the fatigue of composite dowels under cyclic pull-out loading are still lacking. As fatigue behaviour is crucial for applications in bridge construction, the present paper introduces cyclic pull-out tests on composite dowels in UHPC slabs in which the influence of different load-dependent parameters (upper load level and load range) as well as the use of transverse reinforcement has been investigated. Furthermore, an approach to assess the lifetime of composite dowels in UHPC under cyclic pull-out loading is proposed.

Stichwörter:
Ermüdung Ankerblock Verbunddübel UHPC
Verfügbar bei: Siehe Verlag
Structurae kann Ihnen derzeit diese Veröffentlichung nicht im Volltext zur Verfügung stellen. Der Volltext ist beim Verlag erhältlich über die DOI: 10.1002/suco.201500034.
  • Über diese
    Datenseite
  • Reference-ID
    10073254
  • Veröffentlicht am:
    27.06.2016
  • Geändert am:
    27.06.2016
 
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