Designing a Reinforced Concrete Beam: 8.2m Span, C30 & High Yield Steel

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A reinforced concrete beam with an 8.2m span is designed to support a uniformly distributed load of 12 kNm-1 plus its self-weight, alongside an additional load of 10 kNm-1. The discussion emphasizes the importance of consistency in calculations, particularly in span-to-depth ratios. Participants suggest sketching the beam's cross-section to accurately represent the arrangement of 25 bars and 8 mm links, ensuring adequate space for concrete placement. Attention to detail in these aspects enhances the professionalism of the design. Proper documentation and visual representation are crucial for effective beam design.
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a beam with an effective span of 8.2m is required to carry uniformly disributed loading of gk = 12 kNm-1(in additon to its own self weight) and qk = 10kNm-1.

design a suiable reinforced concrete beam using strength class C30 concrete and high yield reinforcement

could somone check my working forthe following question
thank you
 

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Looks good, but would be more professional if you were consistent. For example, following span/depth = ... 20.6, the next line should be ...15 <20.6 therefore OK; and you have made this all important comparison elsewhere. Also you should now sketch the cross-section more or less to scale to show how the 25 bars are arranged in the 8 mm links, and demonstrate that there is enough room to get the concrete through the bars.
 
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