1. AASHTO (2004). AASHTO LRFD Bridge Design Specifications 3 rd Edition with 2005 Interim Provisions American Association of State and Highway Transportation Officials Washington D.C.
2. AASHTO (1998). AASHTO LRFD Bridge Design Specifications 2 nd Edition with 1999 2000 2001 2002 and 2003 Interim Provisions American Association of State and Highway Transportation Officials Washington D.C.
3. AISC (2005). Specification for Structural Steel Buildings American Institute of Steel Construction Chicago IL (to appear).
4. AISC (1999). Load and Resistance Factor Design Specification for Structural Steel Buildings American Institute of Steel Construction Chicago IL.
5. AISC (1989). Specification for Structural Steel Buildings: Allowable Stress Design and Plastic Design 9 th Ed. American Institute of Steel Construction Chicago IL.