Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Axial Force Transfer Mechanisms Within Cast-In-Steel-Shell Piles
In this research, the axial force transfer within Cast-In-Steel-Shell (CISS) piles through the surface bond and through mechanisms fixed to the steel shell internal surface was studied. Mechanisms studied included a shear ring, welded bar, weld bead, shear studs, cross bar, and tread plate. Other parameters studied in this experiment included the effect of shear ring spacing, the effect of the D/t ratio on the shear ring, and the effects of expansive concrete, D/t ratio, and surface condition. Test units were subjected to a quasi-static reversed cyclic axial loading. All mechanisms exhibited a noticeable increase in the axial force capacity, in both compression and tension. Test units with a circumferential mechanism (e.g. shear ring) had a ductile performance, whereas distributed mechanisms had a non-ductile performance. Circumferential mechanisms were effective to the extent that either the steel shell capacity was obtained, through circumferential yielding at the mechanism, or the reinforced concrete core capacity was obtained. This report will present the experimental results, a prediction method and results from finite element modeling.
Axial Force Transfer Mechanisms Within Cast-In-Steel-Shell Piles
In this research, the axial force transfer within Cast-In-Steel-Shell (CISS) piles through the surface bond and through mechanisms fixed to the steel shell internal surface was studied. Mechanisms studied included a shear ring, welded bar, weld bead, shear studs, cross bar, and tread plate. Other parameters studied in this experiment included the effect of shear ring spacing, the effect of the D/t ratio on the shear ring, and the effects of expansive concrete, D/t ratio, and surface condition. Test units were subjected to a quasi-static reversed cyclic axial loading. All mechanisms exhibited a noticeable increase in the axial force capacity, in both compression and tension. Test units with a circumferential mechanism (e.g. shear ring) had a ductile performance, whereas distributed mechanisms had a non-ductile performance. Circumferential mechanisms were effective to the extent that either the steel shell capacity was obtained, through circumferential yielding at the mechanism, or the reinforced concrete core capacity was obtained. This report will present the experimental results, a prediction method and results from finite element modeling.
Axial Force Transfer Mechanisms Within Cast-In-Steel-Shell Piles
M. Gebman (Autor:in) / S. Ashford (Autor:in) / J. Restrepo (Autor:in)
2007
362 pages
Report
Keine Angabe
Englisch
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