Which is better, the fire resistance of the reinforced concrete structure and the fire resistance of the steel structure?
Reinforced concrete has fire-resistant time, and steel structure to steel structure of the force parts, with fire-resistant coating to ensure the fire-resistant performance of steel structure, the column is 2.5 hours, the beam is 2 hours, the board is 1.5 hours.
This specification has provisions, the index is fire-resistant how much time?. Of course, the concrete has better fire resistance.
The steel melting point, steel structure is not to the melting point, when the burning temperature reached 500 degrees, the structure will collapse, concrete has no melting point, when the temperature reached 80 degrees will appear on the surface of concrete crack, skin peeling.
