4BS5400, Part 5. Concrete and composite bridges [ S J. London : British Standards Institutions, 1979.
5Eurocode 4. Design of steel and concrete structures, partl. 1. : general rules and rules for building [ S ]. Brussels ( Belgium ) : European Committee for Standardization, 1994.
6AIJ. Recxxm~ndations for design and canstmction ~ c~crete filled steel s~ctures[S1. Tokoy: Architectural Institute ff Japan, 19:37.
7AISC. Load and resistance factor design specification for struc- tural steel buildings [ S ]. Chicago (IL) : American Institute of Steel Construction. 1999.