The behaviour of puzzle-shaped composite dowels — Part I: Experimental study

Lorenc, W.; Kożuch, M.; Rowiński, S.

doi:10.1016/j.jcsr.2014.05.013

Cited by 82 publications

(50 citation statements)

References 12 publications

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“…An inelastic response occurs in steel dowels due to the non-linear stress-stain relationship of structural steel; the other effects are marginal, as was proved by FE and by tests [13], [3]. No superposition for local geometric stress is needed at ULS (plastic approach).…”

Section: Plastic Approachmentioning

confidence: 95%

“… Results of tests for different sizes of dowel and an illustration of ductility δ defined by angle and height of dowel , …”

Section: Elastic Approachmentioning

confidence: 99%

“…More information concerning the behaviour of composite dowels in general can be found in [8], [9]. Fatigue of steel dowels is discussed in [10], [11], and [12] [4], [13] to fatigue of the MCL shape. Testing procedures used in testing composite dowels are presented in [15].…”

Section: Elastic Approachmentioning

confidence: 99%

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Non‐linear behaviour of steel dowels in shear connections with composite dowels: design models and approach using finite elements

Lorenc

2016

Steel Construction

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Section: Plastic Approachmentioning

confidence: 95%

“… Results of tests for different sizes of dowel and an illustration of ductility δ defined by angle and height of dowel , …”

Section: Elastic Approachmentioning

confidence: 99%

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Non‐linear behaviour of steel dowels in shear connections with composite dowels: design models and approach using finite elements

Lorenc

2016

Steel Construction

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“…Diese berücksichtigt die Versagensarten Stahlversagen, Ausstanzen und Betondübelabscheren. Wichtige Vorarbeiten und Modelle zur Beschreibung des Schubtragverhaltens von Verbunddübelleisten wurden beispielsweise in [4], [5] und [6] für das Ausstanzverhalten, in [7] und [8] für das Stahlversagen und in [9], [10] und [11] für das Abscheren von VDL durchgeführt. Die randnahe Lage von VDL in Trägerstegen wird beispielsweise in [12] und [13] untersucht.…”

Section: Introductionunclassified

Ausstanzen von Verbunddübelleisten im gerissenen Beton

Claßen

Hegger

2017

Stahlbau

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Experimentelle Untersuchungen aus der Literatur zeigen, dass die Schubtragfähigkeit von Verbunddübelleisten mit Ausstanzversagen durch Querrisse im Betongurt vermindert wird. Bisher sind allerdings weder die hierbei auftretenden Tragmechanismen geklärt noch wird der Querrisseinfluss in den einschlägigen Bemessungsmodellen für Verbunddübelleisten berücksichtigt. Daher werden im vorliegenden Beitrag 38 Abscherversuche im gerissenen Beton vorgestellt, die neue Erkenntnisse über das Schubtragverhalten von Verbunddübelleisten mit Ausstanzversagen im gerissenen Beton liefern. Die Versuche wurden in einem neuartigen Versuchstand durchgeführt, der eine gezielte Untersuchung der Einflüsse Rissabstand und Rissbreite ermöglicht. Anhand der Versuchsergebnisse werden die auftretenden Tragmechanismen analysiert und die Phänomenologie des Ausstanzens im gerissenen Beton erläutert. Alle hier vorgestellten Untersuchungen wurden im Rahmen von [1] durchgeführt.

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“…Besides their use in building construction (), where they are mainly exposed to static loading, composite dowels are particularly prevalent in engineering structures and bridge construction (), where the cyclic traffic loads may cause fatigue processes in the composite connection. The few existing studies documented in the literature () have dealt mainly with the fatigue processes of the steel dowel, whereas the concrete fatigue behaviour has been disregarded. So far, these studies have been conducted on beam tests, where the global fatigue behaviour was investigated.…”

Section: Introductionmentioning

confidence: 99%

Concrete fatigue in composite dowels

Claßen

Gallwoszus

2016

Structural Concrete

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In modern bridge construction, steel‐concrete composite structures with composite dowels are being built more than ever, especially for small and medium spans. In contrast to headed studs, in which initial steel cracks occur after only a few load cycles [1], [2], the lifetime of composite dowels is characterized by the compression of the multi‐axially stressed concrete in front of the composite dowel. Here, plastic compression strains occur in the concrete and accumulate over load cycles, leading to a cyclic increase in relative displacements in the connection. Certain proportions of these relative displacements, called inelastic slip, remain in the connection, even after the loading is relieved. The inelastic slip changes the characteristics of the static dowel curve. The initially rigid connection degrades over its lifetime, leading to redistributions of internal forces, which may be critical for fatigue design. In order to consider the degradation of the composite connection, a cyclic dowel curve can be used, which may be developed from the static dowel curve by introducing the inelastic slip. This paper presents the results of cyclic shear tests on different composite dowel geometries. The effect of load‐dependent parameters (upper load level and load range) was investigated. Furthermore, an engineering model for determining the cyclic dowel curve is presented, which was developed based on the results of experimental and numerical investigations.

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The behaviour of puzzle-shaped composite dowels — Part I: Experimental study

Cited by 82 publications

References 12 publications

Non‐linear behaviour of steel dowels in shear connections with composite dowels: design models and approach using finite elements

Non‐linear behaviour of steel dowels in shear connections with composite dowels: design models and approach using finite elements

Ausstanzen von Verbunddübelleisten im gerissenen Beton

Concrete fatigue in composite dowels

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