In: Civil Engineering
Select the most efficient member for the following LRFD required moments and unsupported lengths. Assume Cb = 1.0.
Mr |
Lb |
630 kip-ft |
30 ft |
160 kip-ft |
10 ft |
350 kip-ft |
16 ft |
400 kip-ft |
8 ft |
Using AISC Manual Table 3-10 fy=50 Cb=1
The selected moment should be the next greater value,so that the section would be the most efficient.
Selected sections are
Mr Lb Selected Members
630 kip-ft 30 ft W24*104
160 kip-ft 10 ft W12*35
350 kip-ft 16 ft W21*62
400 kip-ft 8 ft W21*57