| Detailing Aspect | BS 5400 Requirement | |------------------|----------------------| | Minimum reinforcement in flexure | 0.15% of gross concrete area (for grade 460 steel) | | Maximum spacing of bars in tension | 150 mm for high durability | | Minimum link diameter | 10 mm for main beams | | Maximum spacing of links | 0.75 × effective depth | | Cover to prestressing ducts | ≥ 50 mm or duct diameter |
The standard is divided into several parts, with being the primary "Code of practice for design of concrete bridges". Key sections include: concrete bridge design to bs 5400 pdf
BS 5400 Part 4 serves as the foundational British Standard for concrete bridge design, utilizing limit state philosophy for ultimate and serviceability requirements. Although superseded by Eurocodes for new construction, it remains essential for assessing existing structures built before 2010. For detailed background on the code's application, see the analysis on Structural Guide | Detailing Aspect | BS 5400 Requirement |