Experimental fire analysis of steel‐to‐timber connections using dowels and nails

Frangi, Andréa; Erchinger, Carsten; Fontana, Mario

doi:10.1002/fam.994

Cited by 28 publications

(22 citation statements)

References 4 publications

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“…Erchinger [10,14] performed a series of fire resistance tests on steel-to-timber dowelled connections. The tests consisted of 18 fire tests under standard ISO-fire exposure and 25 tests conducted at ambient temperature.…”

Section: Fire Behaviour Of a Steel Connection Between Timber Structurmentioning

confidence: 99%

Load-bearing capacity of the steel-to-timber connections in fire temperature

Domański

Kmiecik

2019

MATEC Web Conf.

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Connections are usually the weakest parts in most structures, especially in fire conditions. The load-bearing capacity of timber structures is often limited by the resistance of steel connection between timber structural members. The temperature distribution in the cross-section as well as the influence of steel fasteners on the charring of the timber members is necessary to predict the fire resistance of the connection. This paper presents a summary of results from numerical studies on the fire behaviour of the steel connections between timber structural members. To make the three-dimensional thermal models of the joints, the FE (finite element) programme SAFIR was used. Then, the finite element models of the connections were used to analyse the temperature distribution inside cross-sections under standard ISO-fire exposure. The failure modes from the literature were used to predict the load-bearing capacity of the steel connections at elevated temperatures. The reduction of the cross-section caused by charring, the reduction of embedment strength and the reduction of steel strength at fire conditions were taken into account in the calculations.

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Section: Fire Behaviour Of a Steel Connection Between Timber Structurmentioning

confidence: 99%

Load-bearing capacity of the steel-to-timber connections in fire temperature

Domański

Kmiecik

2019

MATEC Web Conf.

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“…For comparison, Lau [6] found that the improved fire resistance for bolted SWS connections and the nailed steel-wood-steel connections were about 9.9 min and 8.2 min, respectively. Frangi [25] stated that the protection of a 2 mm thick intumescent paint to steel side plates increased the fire resistance of nailed SWS connections by about 18 min.…”

Section: Intumescent Paintmentioning

confidence: 99%

On the Fire Performance of Double-shear Timber Connections

Peng¹,

Hadjisophocleous²,

Mehaffey³

et al. 2011

Fire Safety Science - Proceedings of the 10th International Sym

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In heavy timber structures, double-shear connections, including wood-wood-wood (WWW), wood-steelwood (WSW) and steel-wood-steel (SWS) connections with either bolts or dowels as fasteners, are widely used to assembly structural members and transfer loads. However, connections with metal fasteners and components are potentially venerable links in fire exposure. A number of efforts have been devoted to study the fire performance of timber connections in the last two decades. With the knowledge and experimental data generated, new attempts have been made in order to develop new calculation methods and improve design rules for timber connections in fire. In this paper, existing models are discussed and new correlations are presented for the calculation of the fire resistances of double-shear timber connections. Various factors, i.e. timber thickness, fastener diameter, and load ratio are considered in the correlations. Comparison between the predictions using the correlations and the measured results in fire resistance tests shows good agreement. For timber connections with protective membranes, the component additive method (CAM) can be used by adding the additive fire resistances of the protective membranes to the fire resistances of unprotected timber connections. Connections with concealed fasteners and intumescent paint are also discussed in this paper.KEYWORDS: timber, connections, fire resistance, structural design. NOMENCLATURE LISTING

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“…The main objective of this work is to present the analytical formulation that can be applied in design of wood connections. Wood connections have been investigated due to their impact in construction engineering in terms of strength, ductility, and all capability to increase the structural performance in service [5][6][7]. In heavy timber structures, doubleshear wood connections with steel fasteners are widely used to assembly structural members and transfer loads [5].…”

Section: Introductionmentioning

confidence: 99%

Analytical Assessment and Comparison of Wood Strength and Density Effect in the Design of Three Connection Types in Double-Shear

Fonseca¹,

Leite²,

Silva³

et al. 2021

Preprint

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This work presents the results of three connection types in double-shear with dowel fasteners, using the simplified equations from the Eurocode 5. All design parameters were established and compared using three different wood strength and density properties, which constitute the members connections. Eighty-one connections were obtained, allowing to conclude about the number of fasteners needed to the applied tensile load. An increase in the number of dowels was obtained with the increased applied tensile load, lower dowel diameter, lower wood density, and lower strength material in all connection types in the study. The design characteristic load-carrying capacity per shear plane and fastener also decrease with the previously considered parameters.

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Experimental fire analysis of steel‐to‐timber connections using dowels and nails

Cited by 28 publications

References 4 publications

Load-bearing capacity of the steel-to-timber connections in fire temperature

Load-bearing capacity of the steel-to-timber connections in fire temperature

On the Fire Performance of Double-shear Timber Connections

Analytical Assessment and Comparison of Wood Strength and Density Effect in the Design of Three Connection Types in Double-Shear

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