What temperature has been proved for the main steel structure of the building while calculating the intumescent paint coatings on the beams - is this dependent on the massiveness of the section (the section factor), utilization of the section, the thickness of the flange, etc.? Will the economical slimming down of the lower flange’s thickness not result in the non-fulfilment of Technical Approval (or ETA) for the indicated intumescent paint coatings or will it be necessary to apply excessive and irrational thicknesses of the intumescent paint coatings (under the assumption REI120 for beams)?

Question

What temperature has been proved for the main steel  structure of the building while calculating the intumescent paint  coatings on the beams - is this dependent on the massiveness of  the section (the section factor), utilization of the section, the  thickness of the flange, etc.? Will the economical slimming down  of the lower flange’s thickness not result in the non-fulfilment of  Technical Approval (or ETA) for the indicated intumescent paint  coatings or will it be necessary to apply excessive and irrational  thicknesses of the intumescent paint coatings (under the  assumption REI120 for beams)?

HBadmin · Accepted Answer

Answers to this question can be found in annexes 1, 7, and 8.

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