Thermal behaviour of blind-bolted connections to hollow and concrete-filled steel tubular columns

Pascual, Ana; Romero, Manuel L.; Tizani, Walid

doi:10.1016/j.jcsr.2015.01.014

Cited by 20 publications

(9 citation statements)

References 17 publications

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“…In the absence of fire experiments to validate the thermo-mechanical model, the mechanical part of the problem was corroborated at room temperature with tests on the same connections, whereas the validation of the heat transfer was accomplished in a preceding research by the authors [23].…”

Section: Discussionmentioning

confidence: 99%

“…Hence, the purpose of this research is to obtain insight into the response at high temperature of blind-bolted moment-resisting connections, with the focus on the tension zone. A previous research from the authors [23] Pascual A M, Romero M L, Tizani W. This research is based on advanced numerical calculations using Finite Element Analysis (FEA). The finite element model of the connections mechanical performance at room temperature is validated with experiments from the literature [2,10] and the thermal model with the work from the authors [23].…”

Section: Feamentioning

confidence: 99%

“…The thermal behaviour of blind-bolted connections was studied by the authors in a previous work [23], through experiments and FEA. The laboratory program consisted of twelve unloaded small-scale specimens, which were exposed to the standard fire curve ISO834 [36] As a result, accurate simulations of the thermal behaviour were accomplished.…”

Section: Thermal Behaviour Of the Blind-bolted Connectionsmentioning

confidence: 99%

“…In a preceding paper by the authors [23], the limited data relating to thermal properties of high strength steel bolts at elevated temperatures was noted.…”

mentioning

confidence: 99%

“…In these contacts a thermal conductance gap of 200 W/m 2 K was adopted, following the recommendations drawn from [23].…”

mentioning

confidence: 99%

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Fire performance of blind-bolted connections to concrete filled tubular columns in tension

Pascual

Romero

Tizani

2015

Engineering Structures

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This paper describes an advanced numerical model to predict the fire behaviour of blind-bolts in the tension area of endplate connections between I-beams and concrete filled tubular (CFT) columns. It is the continuation of a previous research on the thermal response of connections, considering the tension load of a moment-resisting connection. Due to the absence of experiments and data on blind-bolts fire performance the aim was to provide a model for their study. The effect of two main variables was researched, the concrete infill of the columns and the anchored extension of the blind-bolt. The fire resistance rating (FRR), the failure mode and the force-displacement-temperature curve at high temperatures were discussed. Results proved that concrete inside the column enhances the connections response at elevated temperatures in terms of FRR and stiffness. On the other hand, the use of anchored blind-bolts compared with normal blind-bolts provided stiffer connections, but the FRR improvement depended on the plate thickness and steel bolt properties. Finally, the use of fire resistant steel bolts as a method to enhance the fire response was assessed, observing the benefits to these connections when the shank of the blind-bolt governs the failure.Pascual A M, Romero M L, Tizani W. Fire performance of blind-bolted connections to concrete filled tubular columns in tension. Engineering structures 2015;96:111-125. http://dx

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Section: Discussionmentioning

confidence: 99%

Section: Feamentioning

confidence: 99%

Section: Thermal Behaviour Of the Blind-bolted Connectionsmentioning

confidence: 99%

“…In a preceding paper by the authors [23], the limited data relating to thermal properties of high strength steel bolts at elevated temperatures was noted.…”

mentioning

confidence: 99%

“…In these contacts a thermal conductance gap of 200 W/m 2 K was adopted, following the recommendations drawn from [23].…”

mentioning

confidence: 99%

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