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Sumitomo Granted Certification for Method to Connect H-Beams and Columns

Sumitomo Metal Industries, Ltd. has acquired technical-evaluation certification for its newly developed SM-HSJ (H-column Simple Joint) construction method, which uses an improved method of connecting H-beams and columns for steel frame buildings. The certification is for building technologies (GBRC Technical Evaluation No. 10-11) from the General Building Research Corp. of Japan.
 
The method is appropriate primarily for low- and middle-rise buildings such as plants, warehouses, and shopping centers. It reportedly can simplify welding work to connect H-beams and columns, and is expected to help reduce construction costs.
 
The SM-HSJ method is an expanded version of the “SRC column rationalized structure by use of the SM-TWH” (certificate No. ST0044 for the technical evaluation performed by the Building Center of Japan in 2001) for steel-construction buildings. The SM-TWH-based method has been well-received by customers, according to Sumitomo Metals, and has been adopted for steel-reinforced concrete columns.
  
The SM-HSJ method uses Sumitomo Metals’ original H-shaped steel columns, which have a thickened web. Examination of the strength of welded parts has shown that the method simplifies the reinforcement of the connection, the company claims.