A reinforced rectangular concrete beam has a width of 250 mm and an effective depth of 360 mm. It is reinforced for tension only at the bottom with a total tension steel area of 600 mm². fc’ = 40 MPa, fy = 400 MPa. a. Determine the tension reinforcement index for this beam. b. Determine the distance of the neutral axis below the compression surface. c. Determine the ultimate flexural strength of the beam.

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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.