Investigations of steel elements with intumescent coating connected to space-enclosing elements in fire, Fire tests on intumescent coated steel members

Peter Kraus, Martin Mensinger, Florian Tabeling, Peter Schaumann


The current status of the research program “Optimized use of intumescent coating systems on steel members” (AiF 17200) is presented.The aim of the project is to quantify the influence of space-enclosing elements on the thermal behaviour of supporting steel members. Those elements cause partially restrained expansion of the fire protection system. Experimental investigations on beams and columns directly connected to space-enclosing elements are presented. Additionally, numerical simulations are performed for temperature field calculations of steel elements with intumescent coating. As a new development, the numerical model takes into account the expansion process of intumescent painting. The setup of the numerical model is introduced.

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