Closed Cylindrical Tubular Members

• Published in: Cold-Formed Steel Design p. 1
• Main Authors: Yu Wei-Wen, Chen Helen, LaBoube Roger A
• Format: Book Chapter
• Language: English
• Published: Hoboken, NJ, USA John Wiley & Sons 2020; John Wiley & Sons, Inc
• Edition: 5th Edition
• Subjects: Applications; axial compression; bending strength; Civil Engineering & Construction Materials; closed cylindrical tubular members; combined loading; compression members; flexural column buckling; local buckling stress; Metals & Metallurgy; Structural Engineering; torsion; transverse shear
• ISBN: 1119487390; 9781119487395
• DOI: 10.1002/9781119487425.ch7

This chapter deals with the strength of closed cylindrical tubular members and the design practice for such members used as either flexural or compression members. Closed cylindrical tubular members are economical sections for compression and torsional members because of their large ratio of radius of gyration to area, the same radius of gyration in all directions, and the large torsional rigidity. The buckling behavior of closed cylindrical tubes is significantly affected by the shape of the stress‐strain curve of the material, the geometric imperfections such as out of roundness, and the residual stress. Because closed cylindrical tubes are commonly used in offshore structures, extensive analytical and experimental studies of the strength of tubular members have been made by numerous investigators throughout the world. Local buckling of closed cylindrical tubular members can occur when members are subject to: axial compression; bending; torsion; transverse shear; and combined loading. The chapter discusses each item separately.