Large scale fire test on tunnel segment: Real boundary conditions in order to evaluate spalling sensitivity and fire resistance

Author(s): F. Robert, C. Collignon, M. Scalliet
Paper category: Workshop
Book title: Concrete Spalling due to Fire Exposure – Proceedings of the 3rd International Workshop, Paris 2013
Editor(s): P. Pimienta, F. Meftah
Print ISBN: 978-2-7598-1074-1
Publisher: Edp sciences
Pages: 214 - 221
Total Pages: 8
Language: English

Abstract: 
The objective of the present study was to reproduce the real state of stress in a tunnel segment in order to evaluate the spalling sensivity. Numerical tools have been used to predict the restrained axial forces which may appear due to the thermal expansion. A new experimental set up has been designed to withstand these forces. Thus the choice of a protected self-resistant slab to reproduce the surroundings has been done to test the loaded precast tunnel segment which withstood a two hour modified hydrocarbon fire with only limited amount of spalling.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00