Seyed Ahmad Hosseini - PhD. candidate of Civil Engineering Dept. K.N.Toosi University, Tehran
Mostafa Zeinoddini - Associate Prof of Civil Engineering, K.N.Toosi University, Tehran, Iran

Beam-to-column connections have been foWld to be of great significance in influencing structural behavior at ambient and elevated temperatures. Observations from full-scale fire tests and damaged structures confirm that connections have a considerable effect on the stability time of structural components in ftre. One type of such connections is the connections between 1-shape beam and pipe shape columns in oil platform decks. Considering the high probability of frre in oil platforms, study of the behavior ofthese connections at elevated temperatures is of importance. Therefore, 7 experimental tests have been conducted on this connection type to investigate their fire-resistance capacity.

elevated-temperature behavior, fire, experimental study, beam-to-pipe column connection,oil platforms, improved methods