A 15-ft A992 W10 x 54 beam-column is part of a braced frame and is subjected to a service dead load of 100 kips and a service live load of 120 kips, as determined through a first-order analysis and the Direct Analysis Method. The loads are applied at the top of the vertical member with a horizontal eccentricity of 2 inches resulting in bending about the strong (x-x) axis of the section. Determine the adequacy of the member. Use LRFD. Use the approximate analysis method to account for second-order effects.

While talking about Load and Resistance Factor Design (LRFD) method, we can say that it is based on the principle that strength (resistance) of various materials is scaled down by some factors while the applied loads are scaled up by some factors, and thereby the structural elements are designed using reduced strength and increased loads.

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