A reinforced concrete beam has a width of 300 mm and a total depth of 550 mm. Effective cover to centroid of tension bars is 60mm. Compressive reinforcement (if required) will be placed at d’ = 60mm. f’c = 21 MPa and fy = 415 MPa. The Follow 2010/2015 NSCP provision and use ? = 0.90 for flexure.  1. Determine the required area of steel reinforcement, As, if the beam carries a factored moment of 79 kN-m.  2. Determine the required area of steel reinforcement, As, if the beam carries a factored moment of 193 kN-m.  3. Determine the required area of steel reinforcement, As, if the beam carries a factored moment of 402 kN-m.

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Design criteria for structural loading

The different loads such as loads due to self-weight (dead load) and external loads such as live load, wind loads, seismic load, snow load, and other loads and load combinations that influence the design of a building are called structural loading. The nature of the applied load differs from changes in the location, design, and type of materials used. The design criteria require that structures must be designed and constructed to be able to withstand all load types that are expected to act upon the structure and render its usage for the designated purpose. The structural members such as beams, slabs, columns, and foundations help the structure to withstand the applied load. There are different institutes such as ASCE and ACI that provide building design codes to assure minimum safety requirements and quality of the structures.