Researches On The Fire Resistance Of Beam And Column Members Of Steel-clad Concrete Structure

Steel-clad concrete structure is a new architecture structure of which the property is under research. It takes on the technology in which processes thin steel sheets into beam-column components in advance, thereafter casts concrete.Fire precaution and fighting is an arduous work for man all the way. In recent years, structural fire-resistance becomes one of the most important and complex theme in the field of structure works. Actually, the fire endurance of steel-clad concrete structure is much better than the same of steel structure, wood structure, and some others etc. However, it's inevitable for all of these structures to face with the torture by fire.The thesis is mainly about the research on fire endurance of steel-clad concrete structure. Through the test by raising temperature, I researched some elements' property under fire, such as temperature field distribution, structural load, and the destruction mechanics. Thereafter, I analyzed the impact of thickness of protective coating on fire resistance of dead-loaded beam. On the basis of collecting natively and abroad reference datum of fire resistance performance which using diverse materials such as concrete, steel sheet and fire-resistance plate, I established a mathematical model with pyrology performance and mechanics performance. Then I applied the methods of analyzing heat analysis and nonlinear structural analysis by proctoring the steel-clad concrete structure's change under fire. I testified the accuracy of this method by its result and used the limited elements to analyze the impact on the impact of different thickness of fire protective coating on fire resistance.Finally, I summed up all related work to this thesis and put forward my opinion on the way of further research.