Thanks everyone for the response. It seems like it is the moment. The value under the beam is approximately WL^2/16. It seems like a simplified moment analysis of a frame with the distributed load as 105psf x tributary length.
Does anyone know that the numbers below a steel beam represents? This is a older building built in 1965. I have ruled out beam elevations (noted else where), shear studs (beams dont have shear studs), moment? (did quick hand calcs).
