Statische und dynamische Axialdruckversuche an Vergrouteten Rohr-in-Rohr-Verbindungen mit verschiedenen Füllmaterialien

verfasst von
Peter Schaumann, Christian Keindorf, Stephan Lochte-Holtgreven
Abstract

This paper sum marises static and dynamic axial compression tests on small scale grouted joints for offshore wind energy converters. The connection is mostly used between driven monopiles and tower sections as tube-in-tube connection. The gap between the tubes is filled with grout materials. The test series comprises grouted joints with smooth and ribbed surfaces of the tubes which are loaded by axial compression. The ultimate and fatigue limit state of the connection can be increased with shear keys along the overlapped length of the tubes to get a ribbed contact surface to the grout. In this case the axial load is transferred by compression struts between the shear keys. The bearing capacity depends mainly on the compressive strength of the grout and the geometry of the shear keys. In addition to the experimental results an analytical design concept is presented within this paper for grouted joints with shear keys. With the analytical model the axial load capacity of the grouted joint can be determined under consideration of the compression struts and number of shear keys.

Organisationseinheit(en)
Institut für Stahlbau
Externe Organisation(en)
SKI Ingenieurges. mbH
Typ
Beitrag in Publikumszeitung/-zeitschrift
Journal
BAUTECHNIK
Band
86
Seiten
719-728
Anzahl der Seiten
10
ISSN
0932-8351
Publikationsdatum
17.11.2009
Publikationsstatus
Veröffentlicht
ASJC Scopus Sachgebiete
Tief- und Ingenieurbau, Bauwesen
Elektronische Version(en)
https://doi.org/10.1002/bate.200910071 (Zugang: Geschlossen)