Civil and Environmental Engineering 2221A/B Midterm: Quiz 1 Things

• School: Western University
• Department: Civil and Environmental Engineering
• Course: Civil and Environmental Engineering 2221A/B
• Professor: Wenxing Zhou

Document Summary

Don"t assume the internal bending moment at all points along the beam is at the same level as the applied external moment is that was applied (at the fixed connection or not). That how sheer and axial work, not moment. Axial and shear work like that because they are only dependent on one thing. Internal moment depends on external shear and external moments, so we have to consider both of them in bmd. Every instance where there is a sheer force changes the internal moment by the shear*distance from the support. So a point load causes a constant internal sheer force along the length of the beam. Constant internal shear force means constant change in internal bending moment. If you have an uniformly, distributed, external shear force of some constant value along the length of the beam, it will cause a constant, uniform change to the internal shear.