Shear and Diagonal Tension - Design of Reinforced Concrete - page 258

Problem 8.18

8.19 If the beam of Problem 8.14 has a factored axial
compression load of 120 k in addition to other loads, cal-
culate V c and redesign the stirrups. ( One ans. 1 @ 3 in.,
4 @ 9 in., 3 @ 12 in.)
8.20 Repeat Problem 8.19 if the axial load is tensile. Use
#4 stirrups.
In Problems 8.21 to 8.22 repeat the problems given using
the enclosed CD-ROM.
8.21 If V u 56,400 lb at a particular section determine
the theoretical spacing of #3

Problem 8.11. ( Ans. Theoretical s 10.68 in., use maxi-
mum 10 in.)

8.22 If V u equals 79,600 lb at a particular section deter-

mine the spacing of #4

stirrups for the beam of Problem

8.12.

8.23 Prepare a flowchart for the design of stirrups for rec-
tangular, T, or I beams.

stirrups for the beam of

Problems in SI Units
In Problems 8.24 to 8.26 for the beams and loads given, select stirrup spacings if 21 MPa and f y 420 MPa.
The dead loads shown include beam weights. Do not consider movement of live loads. Use #10

f c

stirrups.

Problem 8.24