1. American Welding Society (AWS), 1998, Structural Welding Code: Steel, ANSI/A WS Dl. 1–98, Miami, Fla. USA.
2. Bian, L. and Lim, J. 2001, “Fatigue Fracture Behaviour of Hollow Section Joints,”Proceedings of the Conference of Korea Welding Society, 25-26 October, Ulsan, South Korea.
3. Chiew, S. P. and Soh, C. K., 2000, “Stress Concentrations at Intersection Regions of A Multiplanar Tubular DX-joint,”Journal of Constructional Steel Research, Vol. 53, No. 2, pp. 225–244.
4. Department of Energy (DEn), 1990, Offshore Installation: Guidance on Design and Construction and Certification, Her Majesty’s Stationery Office, London, UK.
5. Det norske Veritas (DnV), 1990, Rules for the Design, Construction and Inspection of Fixed Offshore Structures, Norway.