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

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

Authors

Ana M. Pascual



Abstract

This paper reports on the thermal analysis of blind-bolts connected to concrete filled steel tube (CFST) and hollow steel section (HSS) columns. The aim is therefore the investigation of the temperature distribution in the connected sections and the evaluation of the effects due to concrete filling and anchored bolt extension. For this purpose, experimental and numerical work was carried out. The test programme involved twelve small- scale unloaded specimens where the variables were: tube section dimensions, type of blind-bolt, and hollow or concrete filled steel tubes. Results from the experiments revealed the noteworthy effect of concrete on bolt temperature reduction, the insignificant influence of tube section dimensions, and the limited impact of embedded bolt extension. Finite element models (FEM) of connections were developed to simulate the behaviour of tested pieces. Comparison with tests allowed the calibration of thermal material properties and characteristics of heat flux in interactions. Furthermore, assessments of heat transfer problem on the simulation of small-scale pieces extended to the numerical model of the whole endplate connection between an I-beam and a tubular column. Finally, the suitability of simple methods from Eurocode 3 Part 1.2 and other references to obtain the temperature on the connection was evaluated.

Citation

Pascual, A. M., Romero, M., & Tizani, W. (2015). Thermal behaviour of blind-bolted connections to hollow and concrete-filled steel tubular columns. Journal of Constructional Steel Research, 107, https://doi.org/10.1016/j.jcsr.2015.01.014

Journal Article Type Article
Acceptance Date Jan 14, 2015
Online Publication Date Feb 9, 2015
Publication Date Apr 30, 2015
Deposit Date Aug 23, 2017
Publicly Available Date Aug 23, 2017
Journal Journal of Constructional Steel Research
Print ISSN 0143-974X
Electronic ISSN 0143-974X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 107
DOI https://doi.org/10.1016/j.jcsr.2015.01.014
Keywords Thermal analysis; Blind-bolt; Anchored extensions; Concrete filled steel tube; Finite element model; Eurocode 3;
Public URL http://eprints.nottingham.ac.uk/id/eprint/45075
Publisher URL http://dx.doi.org/10.1016/j.jcsr.2015.01.014
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0



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