| Overview |
| Elastic Analysis |
| Plastic Analysis |
| Envelopes |
| Example Problems |
| Homework Problems |
| Report Errors or Make Suggestions |
| Make Donation |
Section CB.6
Homework Problems
Last Revised: 08/02/2008
Problem CB.1: The five span beam shown in Figure CB6.1 is geometrically symmetric and has a constant EI. Assume that the beams are three times stiffer than each of the columns. All spans are subjected to a uniformly distributed load of 2.5 k/ft. Draw the shear and moment diagrams for the beam.
Figure CB6.1
Five Span Beam
Problem CB.2: A four span continuous beam is simply supported. The span lengths and applied uniformly distributed loads are given below. Assume a constant EI for the beam. Draw the moment envelope assuming that the live load is uniquely placed so as to cause maximum effect for each location on the beam.
| Span | Length | Dead Load | Live Load |
| 1 | 5 m | 10 kN/m | 8 kN/m |
| 2 | 4 m | 12 kN/m | 10 kN/m |
| 3 | 6 m | 12 kN/m | 10 kN/m |
| 4 | 5 m | 10 kN/m | 8 kN/m |