A structural engineer supplied the load ratio of a 450UB45 steel section as being 0.5. a) If the section is exposed to fires on three sides. What is your estimate of the fire resistance level of the section? b) If the section is suddenly exposed to a non-standard fire condition of constant temperature of 800 °C with all side exposure, how long will it take for the steel to reach a temperature reading of 450oC? How long will it take for the steel to reach the critical temperature?
A structural engineer supplied the load ratio of a 450UB45 steel section as being 0.5. a) If the section is exposed to fires on three sides. What is your estimate of the fire resistance level of the section? b) If the section is suddenly exposed to a non-standard fire condition of constant temperature of 800 °C with all side exposure, how long will it take for the steel to reach a temperature reading of 450oC? How long will it take for the steel to reach the critical temperature?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A structural engineer supplied the load ratio of a 450UB45 steel section as being 0.5.
a) If the section is exposed to fires on three sides. What is your estimate of the fire resistance level of the section?
b) If the section is suddenly exposed to a non-standard fire condition of constant temperature of 800 °C with all side exposure, how long will it take for the steel to reach a temperature reading of 450oC? How long will it take for the steel to reach the critical temperature?
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