8European Committee for Standardization.EN1993--1-1:2005 Eurocode3.Design of Steel Structures Part 1.5:Plat-ed Structural Elements[S].Brussels:Belgium,2005.
9British Standards Institution.BS5400.Part 3:1982.Steel,Concrete and Composite Bridges,Code of Practice for Design of Steel Bridges[S].London.British Standards Institution,1982.