For steel framed floors in typical buildings, the conventional wisdom is that the beams should be framed in the long direction of the bay, and the girders in the short direction. This makes some sense, as bending moment is a function of length squared, and deflection is a function of length to the fourth power. However, this has not been conclusively shown to be the most efficient approach to floor framing.

This project will investigate the economics of various floor framing schemes to attempt to conclusively answer the question. Costs for all materials and connections will be included, and the assumptions related to load distribution on the floor may be evaluated also.