Training 13: Worked calculation, utilities
Continuous beam analysis #
New calculation, Continuous beam analysis. Two spans of 20 ft and 24 ft, pin supports, a W16X26 for the stiffness, D = 0.5 and L = 0.8 kip/ft, with live load patterned on the spans.
2-span beam, 44 ft.
| Result | Value |
|---|---|
| Largest positive moment | 95.1 kip-ft |
| Largest negative moment | -116.6 kip-ft |
| Largest shear | 27.4 kips |
| Reaction at 0 ft (max / min) | 15.49 / 1.63 kips |
| Reaction at 20 ft (max / min) | 52.04 / 19.38 kips |
| Reaction at 44 ft (max / min) | 18.92 / 4.44 kips |
| Live load deflection | 0.463 in, ratio 0.578, with L [L on span 2] |
Read it. The combination label says which pattern governs. Live load on one span alone gives the largest deflection, which is why the patterns are on. This type is analysis only: it does not design the member, though it does check deflection against your limits.
Converting a value #
New calculation, Unit converter. Choose Moment, 100 kip-ft: 135.582 kN-m, with every other unit of moment listed. It uses the exact factors of NIST SP 811.
Other utilities. Section properties has its own training chapter. See the overview for the rest.