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Material characteristics at elevated temperatures

Concrete

The compressive strength of concrete is calculated in accordance with 4.2.4.2:

Where is:

fc,Θ

  • The compressive strength of concrete at temperature Θ

kc

  • The coefficient

fck

  • The characteristic compressive cylinder strength of concrete at 28 days

The ratio fc,Θ/fck for high stress concrete (HSC) corresponds to the table 6.1N.

Reinforcement steel

The characteristic strength of reinforcement steel is calculated according to the chapter 4.2.4.3:

Where is:

fsy,Θ

  • The strength of reinforcement steel at temperature Θ

ks

  • The coefficient

fyk

  • The characteristic yield strength of reinforcement

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