This part of BS 5400 has been prepared by Subcommittee B/525/10. It supersedes BS 54003: 1982, which is withdrawn.
This new edition of BS 5400-3 includes technical changes only. It does not represent a full review or revision of the standard, which will be undertaken in due course.
BS 5400 is a document combining codes of practice covering the design and construction of steel, concrete and composite bridges and specifications for loads, materials and workmanship. It comprises the following parts:
-Part 1: General statement;
-Part 2: Specification for loads;
-Part 3: Code of practice for design of steel bridges;
-Part 4: Code of practice for design of concrete bridges;
-Part 5: Code of practice for design of composite bridges;
-Part 6: Specification for materials and workmanship, steel;
-Part 7: Specification for materials and workmanship, concrete, reinforcement and prestressing tendons;
-Part 8: Recommendations for materials and workmanship, concrete, reinforcement and prestressing tendons;
-Part 9: Bridge bearings
-Section 9.1: Code of practice for design of bridge bearings;
-Section 9.2: Specification for materials, manufacture and installation of bridge bearings;
-Part 10: Code of practice for fatigue.
In the drafting of BS 5400 important changes have been made in respect of loading and environmental assumptions, design philosophy, load factors, service stresses and structural analysis. Furthermore, recourse has been made to recent theoretical and experimental research and several design studies have been made on components and on complete bridges.
This part of BS 5400 gives recommendations for the design of structural steelwork in bridges. After stating general recommendations, procedures are given for the design of steelwork components, assemblies and connections. Such procedures are applicable to steelwork which is to be fabricated and erected in accordance with BS 5400-6.
Recommendations for design against fatigue are contained in BS 5400-10. Recommendations for design of concrete components and shear connectors for their interaction with steelwork are contained in BS 5400-5. The partial factors of safety given are appropriate only for bridges designed to this standard.
Hybrid construction, using materials of different yield stress, is not generally within the scope of this part of BS 5400.
