Crack analysis, test and quality control of repairing technique of damaged steel structure roof frame

摘要

Steel structure roof may be damaged during transportation or assembly, after damaged it must be repaired in site to meet the needs of the engineering quality and use. This paper describes the damage of No.2 steel structure storehouse in Yantian Harbor in the process of assembly due to typhoon, which results in different damage on the steel structure roof. The repairing technique and inspecting method and criteria to ensure the strength, stiffness and local stability of the structure are also discussed.The result shows that the repairing method is successful.