Assessment of the failure behaviour and reliability of timber connections with multiple dowel-type fasteners

Jockwer, Robert; Fink, Gerhard; Köhler, Jochen

doi:10.1016/j.engstruct.2018.05.081

Cited by 68 publications

(34 citation statements)

References 6 publications

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“…The estimation of the load-carrying capacity is based on the actual capacity using sample representations of material properties. An example of the model and the applied procedure can be found in (Jockwer et al 2018). The samples of material properties used for the estimation of load-carrying capacity are generated by Monte Carlo simulations and consider the variability of properties of the timber and their correlation as described in JCSS (2006).…”

Section: Calculation Stepsmentioning

confidence: 99%

A probabilistic study of brittle failure in dowel-type timber connections with steel plates loaded parallel to the grain

Cabrero

Honfí

Jockwer

et al. 2019

Wood Material Science & Engineering

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Dowel-type connections in timber structures should be typically designed in a way that, if the load bearing capacity is exceeded, desirable ductile failure should likely occur, i.e. yielding of the metal dowel or embedment of the timber. However, the probability of brittle failures cannot be completely avoided in many cases. If the connection is loaded parallel to the grain direction, splitting, row-shear, plug/block shear and tensile failure are examples of such brittle failure modes. To ensure a beneficial structural performance locally and sufficient structural robustness globally, the probability of such brittle failures should be kept at a sufficiently low level. However, in the current version of EN1995, the probability of such failure is not considered explicitly. The final aim of the presented research study is to develop a rational approach for the consideration of brittle failure in timber connections with dowel-type fasteners and steel plates loaded parallel to the grain, consistently with the partial factor method. As a first step, a probabilistic model has been used to study the susceptibility to brittle failure and provide a rational basis for the calibration of a "brittle overstrength factor". The results of this study are reported in the current contribution.

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Section: Calculation Stepsmentioning

confidence: 99%

A probabilistic study of brittle failure in dowel-type timber connections with steel plates loaded parallel to the grain

Cabrero

Honfí

Jockwer

et al. 2019

Wood Material Science & Engineering

Self Cite

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show abstract

“…In those cases, they conform the validation space against which those particular models were originally calibrated. The probabilistic model for timber porposed by the JCSS [62] has been used to obtain the required mean material properties with a script developed within the framework of the COST Action FP1402 [63,64].…”

Section: Block-shear and Plug-shear Failuresmentioning

confidence: 99%

Performance assessment of existing models to predict brittle failure modes of steel-to-timber connections loaded parallel-to-grain with dowel-type fasteners

Cabrero

Yurrita

2018

Engineering Structures

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For safety reasons, ductile failure in timber connections with dowel-type fasteners is always recommended. It has usually been assumed that it can be achieved by fulfilling minimum spacing requirements between fasteners. However, recent works address the need to account for brittle failure modes (namely splitting, row-shear, and block and plug-shear) in connections loaded parallel-to-the-grain in an explicit manner, in order to evaluate them and achieve the desired ductility. This article describes the brittle failure modes and reviews the existing calculation models proposed by several authors-some of them included in standards-. Finally, the performance of these models is assessed against an extensive database of tests gathered from the literature following a comprehensive methodology.

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“…Recently completed COST Action FP1402 has contributed to a better understanding and overview of broadly available scientific results and the specific information needed by the codewriters, authorities, designers and end-users in the safe, durable and efficient use of timber in structures and, consequently, increase its acceptance and use in the design of buildings. Significant progress has been made with respect to the cross-laminated timber (CLT) structures [5][6][7][8][9], timberconcrete composites [10][11][12] and understanding of the connections in timber structures [13][14][15][16]. As a result, input data for the improvement and future development of EN 1995 are given [17].…”

Section: Introductionmentioning

confidence: 99%

Seismic Design of Timber Buildings: Highlighted Challenges and Future Trends

et al. 2020

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Use of timber as a construction material has entered a period of renaissance since the development of high-performance engineered wood products, enabling larger and taller buildings to be built. In addition, due to substantial contribution of the building sector to global energy use, greenhouse gas emissions and waste production, sustainable solutions are needed, for which timber has shown a great potential as a sustainable, resilient and renewable building alternative, not only for single family homes but also for mid-rise and high-rise buildings. Both recent technological developments in timber engineering and exponentially increased use of engineered wood products and wood composites reflect in deficiency of current timber codes and standards. This paper presents an overview of some of the current challenges and emerging trends in the field of seismic design of timber buildings. Currently existing building codes and the development of new generation of European building codes are presented. Ongoing studies on a variety topics within seismic timber engineering are presented, including tall timber and hybrid buildings, composites with timber and seismic retrofitting with timber. Crucial challenges, key research needs and opportunities are addressed and critically discussed.

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Assessment of the failure behaviour and reliability of timber connections with multiple dowel-type fasteners

Cited by 68 publications

References 6 publications

A probabilistic study of brittle failure in dowel-type timber connections with steel plates loaded parallel to the grain

A probabilistic study of brittle failure in dowel-type timber connections with steel plates loaded parallel to the grain

Performance assessment of existing models to predict brittle failure modes of steel-to-timber connections loaded parallel-to-grain with dowel-type fasteners

Seismic Design of Timber Buildings: Highlighted Challenges and Future Trends

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