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Investigations to determine the bedding of double-T piles in soil – Part II: numerical Simulations and general approach for the rotational spring stiffness
Other Titles
Zur Ermittlung der Bettung von Doppel-T-Trägern im Boden –Teil II: numerische Simulationen und allgemeine Drehfedersteifigkeitsansätze
Publikationstyp
Journal Article
Date Issued
2023
Sprache
English
Author(s)
Beuße, Jannik
Institut
Journal
Volume
98
Issue
4
Start Page
93
End Page
102
Citation
Bauingenieur 98 (4): 93-102 (2023)
Publisher DOI
Scopus ID
Publisher
VDI fachmedien
For an economic design against stability failure of double-T pile of combined sheet pile walls, it is necessary to consider the resistance of the soil to twisting or buckling. Results from in situ tests are already presented in Part I of this publication [1] for the determination of lateral and rotational spring properties to represent the pile-soil interaction. To be able to consider the rotational bedding for other boundary conditions, the results of numerical simulations and analytical derivation of general rotational spring stiffness approaches are presented in this paper. The torsional stiffness in clayey silt is determined with the profile geometry, the consistency or pore number of the soil and the embedment depth. By applying these springs, the combined check against bending and torsional buckling of beams in the soil can be optimized.