4.9-7 Two 9/16 X 10 plates are welded to a W10 X 49 profile to form a composite section as shown in Figure P4.9-7. Assume that the components are connected in such a way that the cross section is fully effective. Fy = 50 ksi, and KxL = KyL = 25 ft. A. Calculate the axial compression design strength based on flexural buckling (do not consider torsional buckling). B. What is the percentage increase in resistance compared to the unreinforced W10 X 49 profile? With the equations E 3-1, E 3-2, E 3-3 , E 3-4

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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.