1. A 340 x 660mm beam is to carry a 660KNm load using concrete and steel with strengths of 21MPa and 350MPa respectively. Design the number of bars using 25mm and 25mm compression and tension bars respectively. What is the capacity moment? Is the beam singly or doubly reinforced? Is there a need to reduce the tension steel area? Does the compression bars yield? What is the stress in the compression steel? Use 40mm clear cover and 12mm stirrup. Assume tension bars are arranged in a single layer only

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Q: A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with 4-20-mm-diameter bars…

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Q: A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with 4-20-mm-diameter bars…

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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.