Welding of steel structures is a major factor in the construction of buildings and most other structures. This article will outline the key points of JGJ81-2002 standard for Architectural Steel Structures Welding Technology.
The JGJ 81-2002 standard is based on the needs of various types of structural steel welding operations, mainly welding of bridges and buildings. These operations include steel construction welding and prefabricated steel welding. The standard consists of 15 articles governing the design, materials and welding technology of these processes.
First, the standard defines critical welding characteristics, such as the type, shape and size of welding materials to be used. It also contains criteria for selecting suitable welding materials and guidance on beam-to-column connections.
Second, it contains detailed guidance on the selection of welding consumables and the method for their application. It also contains special requirements for welding additional structural members, such as angles, channels, and plates.
Third, it contains information about the welding process and its parameters. This includes standards for welding current, voltage and electrode selection as well as guidance on preheating, welding speed and post-welding treatments.
Fourth, the standard also includes provisions on the preparation of shop drawings, and the control and inspection of welding quality. It also provides requirements for welding personnel and the documentation necessary during any welding process.
Finally, it contains information on the qualification of welders and welding operators, and addresses safety requirements applicable to steel working.
In conclusion, JGJ 81-2002 standard for Architectural Steel Structures Welding Technology covers a wide range of topics to help ensure that welded steel structures are of the highest quality and meet the necessary safety standards. This standard is important for the safe and efficient welding of all types of steel structures, such as bridges and buildings.
