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    <title language="deu">Nichtlineares Tragverhalten stahlbaulicher Offshore-Strukturen unter spezieller Berücksichtigung der Bauwerk-Boden-Interaktion</title>
    <abstract language="deu">Der Vortrag gibt einen Überblick über die ingenieurmäßige Handhabung der stahlbaulichen Bemessung von großen Monopiles für Offshorewindenergieanlagen. Besonderer Focus liegt dabei auf jenen Phänomenen, welche durch eine starke Interaktion zwischen Stahlstruktur und Boden gekennzeichnet werden.</abstract>
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    <author>Hagen Balscheit</author>
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      <language>eng</language>
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      <value>Pile Tip Buckling</value>
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      <language>eng</language>
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      <value>Shell Buckling</value>
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    <title language="eng">Evaluation of pile tip buckling based on large scale tests</title>
    <abstract language="deu">Der Vortrag zum zugehörigen Konferenzbeitrag beschreibt eine groß angelegte Feldtestkampagne mit 16 Rammversuchen, um das Risiko des plastischen Versagens der Pfahlspitzen besser zu verstehen Ein numerisches Modell mit transientem Bodenkontakt zeigt eine gute Übereinstimmung mit den Testergebnissen. Parametervariationen verdeutlichen, wie empfindlich die Pfahlreaktion auf Imperfektionen und Randbedingungen ist.</abstract>
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    <author>Hagen Balscheit</author>
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      <language>eng</language>
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    <title language="eng">Large-scale field tests on plastic pile tip failure upon monopile installation</title>
    <abstract language="eng">Large-diameter monopiles are the most common foundation structures for offshore wind turbines. One relevant failure mode during installation is plastic failure of the pile tip which may increase progressively during further driving (pile tip buckling; extrusion buckling). This paper presents the details and results of a large-scale field-test campaign with dynamic pile installation for the validation and calibration of different numerical approaches concerning pile-tip buckling phenomena. The phenomenology of observed pile-tip failures is here described in detail and a first quantitative approach is evaluated based on the field-test data. As the number of new projects continues to grow and the necessity to construct wind farms in challenging terrain increases, such field data-sets will become increasingly relevant.</abstract>
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      <value>Pfahlfußbeulen</value>
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    <title language="eng">Evaluation of pile tip buckling based on large scale tests</title>
    <abstract language="deu">Der Beitrag beschreibt eine groß angelegte Versuchskampagne mit Pfahlrammungen, um das Risiko des plastischen  Versagens der Pfahlspitze besser zu verstehen und numerische Modelle zu validieren. Ein numerisches Modell mit transientem Bodenkontakt zeigt eine gute Übereinstimmung mit den Testergebnissen. Parametervariationen verdeutlichen, wie empfindlich die Pfahlreaktion auf Imperfektionen und Randbedingungen ist.</abstract>
    <parentTitle language="eng">Proceedings of ISFOG 2025</parentTitle>
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      <language>eng</language>
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      <value>Pile Tip Buckling</value>
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