Note All given loads are service loads. A beam is part of the framing system for the floor of an office building. The floor is subjected to both dead loads and live loads.
The maximum moment caused by the service dead load is 45 ft-kips, and the maximum moment for the service live load is 63 ft-kips (these moments occur at the same location on the beam and can therefore be combined).
b. What is the required nominal moment strength for a resistance factor Φ of 0.90?