1. LRFD bridge design specifications;AASHTO,1998
2. Standard specifications for highway bridges;AASHTO,2002
3. LRFD bridge design specifications;AASHTO,2004
4. Eurocode 3: Design of steel structures;ENV 1993-1-5,1997
5. BS 5400-3-200. British Standard, Steel, concrete and composite bridges. Part 3: Code of practice for design of steel bridges. London (UK): British Standards Institution; amended May 2006