Study on fatigue cracks in steel-concrete shear connection with composite dowels

Dudziński, W.; Pękalski, G.; Harnatkiewicz, P.; Kopczyński, A.; Lorenc, W.; Kożuch, M.; Rowiński, S.

doi:10.1016/s1644-9665(12)60081-8

Cited by 32 publications

(18 citation statements)

References 7 publications

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“…3). These solutions are constantly being developed for typical VFT-WIB® girders and welded plate girders that are the connection components of bridge girders [2].…”

Section: Fig 2vft-wib Girdersmentioning

confidence: 99%

Numerical Analysis of Bridge Girder with Composite Dowel Shear Connection

Lacki

Nawrot

2017

Civil and Environmental Engineering Reports

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A b s t r a c t The work presents a brief description of VFT-WIB® steel-concrete composite beams, examples of composite dowel shear connection shapes are presented. A steel-concrete bridge girder construction solution for the new shape of composite dowel shear connection was proposed. The geometric parameters of the steel section web cutting line are given. For the assumed cross-section dimensions, a numerical model of the girder was made. Numerical analysis was performed, the results of which were compared with the results of the analytical calculations. A program of actions aimed at further optimization of the model is presented.

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“…3). These solutions are constantly being developed for typical VFT-WIB® girders and welded plate girders that are the connection components of bridge girders [2].…”

Section: Fig 2vft-wib Girdersmentioning

confidence: 99%

Numerical Analysis of Bridge Girder with Composite Dowel Shear Connection

Lacki

Nawrot

2017

Civil and Environmental Engineering Reports

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“…1b). As composite dowels are already well reported in the literature [4], [5], [6] , [13]- [20], [23], [24], their general presentation is not within the scope of this manuscript. The aim here is to show that composite dowels have enabled fairly new economic structural forms and composite sections that had been not used in bridge engineering before.…”

Section: Introductionmentioning

confidence: 97%

The model for a general composite section resulting from the introduction of composite dowels

Lorenc

2017

Steel Construction

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A new form of shear connection, so‐called composite dowels, first appeared in Europe in last decade. It enabled economic construction of steel‐concrete composite bridges without an upper steel flange, using a direct connection between steel web and concrete slab. It finally resulted in new economic structural forms and composite sections that had not been used in bridge engineering before. In 2010 the European Commission launched an international project to build three different innovative bridges in three different European countries (Germany, Poland, Romania). Each bridge project was supported by a national consortium consisting of design office, general contractor and university. This economic technology has developed fast: by the end of 2016, at least 34 bridges using composite dowels had been constructed in Europe (13 in Germany, 11 in Poland, 4 in Czech Republic, 4 in Austria, 2 in Romania). These structures use different kinds of composite section that in many cases are not covered by standard design procedures for composite structures. The need for a consistent design method was evident. This leads to a clear design concept that covers the contribution of concrete slabs in transmitting part of the vertical force in composite sections and finally breaks with the concept of a ”steel skeleton“ constituting the fundamental part of the composite beam. The approach proposed here needs to be as simple and clear as possible, so it assumes some simplifications at this stage. It is intended to cover many types of composite section, externally reinforced section and conventional composite section.

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“…Einige Arbeiten beschäftigten sich bereits mit dem Tragverhalten von Perfobondleisten unter zyklischer Beanspruchung . Die Ermüdungsprozesse der Stahlkomponente von Verbunddübelleisten unter zyklischen Belastungen wurden darüber hinaus in behandelt. Zur Betonermüdung wurden in bisherigen Arbeiten zwar experimentelle Untersuchungen durchgeführt , die Versuche wurden allerdings bereits nach 1 bis 2 Mio.…”

Section: Introductionunclassified

Ermüdung von Verbunddübelleisten

Christou

Ungermann

Wolters

et al. 2020

Beton und Stahlbetonbau

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AUFSATZDer Einsatz von Verbunddübelleisten gewinnt sowohl im Hochals auch im Ingenieurbau immer mehr an Bedeutung. Neben der hohen Tragfähigkeit und Steifigkeit der Verbunddübelleisten zählt das gegenüber geschweißten Kopfbolzendübeln deutlich gutmütigere Tragverhalten unter zyklischer Beanspruchung zu ihren wichtigsten Vorteilen. Demzufolge ist der Einsatz dieser innovativen Verbundmittel im Brückenbau besonders vielversprechend. Die bisherigen Regelungen für die Ermüdungsbemessung von Verbunddübelleisten wurden allerdings aufgrund der geringen experimentellen Datenbasis konservativ gewählt, sodass das vorteilhafte zyklische Tragverhalten rechnerisch bisher noch nicht vollständig in Ansatz gebracht werden kann. Im Rahmen dieses Beitrags wird das Tragverhalten von Verbunddübelleisten unter zyklischen Beanspruchungen anhand experimenteller Erkenntnisse detailliert analysiert. Aufbauend hierauf wird ein Modell zur Abschätzung der Lebensdauer der Verbunddübelleisten vorgeschlagen.

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Study on fatigue cracks in steel-concrete shear connection with composite dowels

Cited by 32 publications

References 7 publications

Numerical Analysis of Bridge Girder with Composite Dowel Shear Connection

Numerical Analysis of Bridge Girder with Composite Dowel Shear Connection

The model for a general composite section resulting from the introduction of composite dowels

Ermüdung von Verbunddübelleisten

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