Large-scale fire test of unprotected cellular beam acting in membrane action

Abstract

This paper describes a full scale fire test performed recently on a composite floor for analysing the possibility of tensile membrane action to develop when the unprotected steel beams in the central part of the floor are made of cellular beams.The natural fire was created by a wood crib fire load of 700 MJ/m² and the 9 x 15 m floor survived the fire that peaked at 1000°C and lasted for 90 minutes.

Brandbemessung von Stahltragwerken mit der Finite‐Elemente‐Methode

“…Die ersten dieser Art stellen die Großbrandver suche in Cardington [16] dar. Weitere bedeutende und in Forschungsberichten dokumentierte Versuche an Ver bunddecken sind die Versuchsreihen FRACOF, COSS FIRE, FICEB+ von ArcelorMittal [17] sowie Brandversu che an der TU München [1].…”

“…Das zur Validierung im neben anderen exemplarisch ge wählten Brandversuch FRACOF [17] beobachtete Trag verhalten wird durch das FiniteElementeModell qualita gen geometrisch und physikalisch nichtlinearen Berech nungen.…”

A primer and success stories on performance-based fire design of structures

“…This nine-story office building (with steel moment frames) was used to investigate the influence of many of the structural engineers' decisions regarding fire engineering, including "modeling approach, fire curves, applied gravity loads and hazard scenarios (fire-only vs post-blast fire)." To do so, the MACS þ tool was utilized to simulate the composite slab under an ISO standard fire (Vassart and Zhao, 2012). The performance-based design of the slab was found to be acceptable, able to temporarily withstand losing a column, allowing for complete evacuation of the building.…”

A plastic-damage model for concrete in fire: Applications in structural fire engineering

“…A full-scale fire test was conducted in 2010 on a steel-concrete composite floor in the framework of a project funded by the Research Fund for Coal and Steel, in which six partners were involved [31]. The objective of the test was to investigate the development of tensile membrane action in a large composite structure in which the unprotected steel beams in the central part of the floor are made of cellular beams.…”