HW #7 Torsion Homework
Due Friday, Nov. 1
Detail all shear/torsion reinforcement. Use # 4 closed two-leg stirrups for combined shear+torsion
reinforcement and use extra #4 bars for longitudinal torsion reinforcement.
fc = 4,000 psi
fy = 60,000 ps
CEE 6521, Shear HW #5 Strut & Tie
Due Friday, October 11
1. Using design the RC deep beam shown below. Use Grade 60 #7 bars as the main flexural
reinforcement and #3 bars as the skin reinforcement. = 0.75.
fc = 4,000 psi. fy= 60,000 psi b = 18 inch.
CEE 6521, Homework #11, Shearwall & Coupling Beam
Due Dec. 6
Design the first story of the 8-ft long shearwalls below using uniformly spaced vertical
and horizontal reinforcement. Use two layers, one on each side of each wall. ( suggest
#5 vertical and
CEE 6521, Homework, Slender column
Due Monday Nov. 25
Use moment magnifier technique to determine slender column effects. Is the column adequate?
fc = 4000 psi
fy = 60,000 psi
cover = 1 inch
beam b = 20
Beam reinforced with 4 #10 top and bottom. C
due Monday, Nov 11
Draw the column interaction diagrams for bending about the y axes for the following cases. Plot
Pn v. Mn and Plot Pu v. Mu. Use d of 2.5 inches for all cases. Bars are equally spaced. For
Av nbars As4 0.8 in
Fs Av fy 48 kip
force in each stirrup
# of stirrups to resist Pn1
Reaction at support
Moment at mids