Experimental Analysis on Low Temperature Welding Construction Method of Big Span Steel Truss Structure

Abstract:

The welding quality of the steel structure is one of the most important segments in the whole construction project, especially in the condition of special geographical environment and wicked climate. In this article, by means of the mechanical test and finite element simulation analysis, a welding treating technology has been summarized in the subzero surrounding, which is based on the fundamental of component size selecting, preheat, heat preservation, and change of the ambient temperature including the rising material temperature before welding. Therefore the thermal crack and cold crack can been effectively eliminated. Rigorous controlling the temperature of the welding procedure and scientific construction play an important role to ensure the welding quality of the big span truss beam and column.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 1058-1061
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.1058
• Online since: October 2012
• Authors: Chang Sheng Xiang, Jiang Liu, Qing Fu Li
• Keywords: Experimental Analysis, Finite Element (FE) Simulation, Low Temperature Welding, Metallographic Test, Steel Truss

References

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