1. Referring to problem 1, in order to meet a 1-hour fire code rating the slab thickness must be at least 4.00. Based on the information given in problem 1 and with a slab thickness of 4.00".
a) Determine the bar sizes and spacing required.
b) Determine the cutoff locations for the positive moment steel in each span if alternate bars are cutoff short of the support.
c) Determine the cutoff locations for the negative steel if all bars extend the required distance past the support.
d) Design the shrinkage and temperature steel.
e) Summarize your results with a sketch with reinforcement details.
2. Design the 2-span continuous center T-beam, B2, for the floor syetem shown below.
The girders that the beam frames into are all 24" wide. Using fc'= 5 ksi, and fy = 60 ksi. The service life load is 100 psf and there is a superimposed dead load of 40 psf.
