Publication detail

Timber steel-fibre-reinforced concrete floor slabs subjected to fire

EKR, J. CALDOVÁ, E. VYMLÁTIL, P. WALD, F. KUKLÍKOVÁ, A.

Original Title

Timber steel-fibre-reinforced concrete floor slabs subjected to fire

Type

journal article in Web of Science

Language

English

Original Abstract

This paper presents a finite element model (FE model) for a numerical analysis of a composite steel-fibre-reinforced concrete (SFRC) slab with unprotected secondary timber beams subjected to fire, taking tensile membrane action into account. The material models were calibrated by material tests and push-out tests in a preliminary study, and then the FE model was validated against the results of a full-scale furnace test. The validated FE model takes into account geometric and material nonlinearity, mechanical damage due to thermal loading, and the nonlinear connection between the SFRC slab and the timber beams. A new material model was created to improve the simulated behaviour of the SFRC, especially in tension. The validated FE model was supplemented by a semi-probabilistic safety concept based on the Eurocode standards, and was applied to define the fire resistance of different variants of timber SFRC flooring subjected to fire with various slab dimensions and design loads. This approach will be used to create a catalogue in which the fire resistance will be defined for specific parameters of the structure, for example dimensions, loads and materials. The research presented in this paper follows up on a previous study, which was presented in 2014.

Keywords

Timber, Steel-Fibre-Reinforced Concrete, Fire Resistance, Design Model, FEM

Authors

EKR, J.; CALDOVÁ, E.; VYMLÁTIL, P.; WALD, F.; KUKLÍKOVÁ, A.

Released

18. 7. 2017

Publisher

SPRINGER

Location

NEW YORK

ISBN

0018-3768

Periodical

HOLZ ALS ROH-UND WERKSTOFF

Year of study

76

Number

1

State

Federal Republic of Germany

Pages from

201

Pages to

212

Pages count

12

URL

https://link.springer.com/article/10.1007/s00107-017-1221-8

BibTex

@article{BUT163491,
  author="Jan {Ekr} and Eva {Caldová} and Petr {Vymlátil} and František {Wald} and Anna {kuklíková}",
  title="Timber steel-fibre-reinforced concrete floor slabs subjected to fire",
  journal="HOLZ ALS ROH-UND WERKSTOFF",
  year="2017",
  volume="76",
  number="1",
  pages="201--212",
  doi="10.1007/s00107-017-1221-8",
  issn="0018-3768",
  url="https://link.springer.com/article/10.1007/s00107-017-1221-8"
}