EM 319 - Shear Force and Moment Diagram

EM 319 - Shear Force and Moment Diagram - force diagram (...

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Shear force and Moment diagrams Procedures for solving a question: 1. Solve for reactions. (After that, reactions can be regarded as applied forces.) 2. Draw shear force diagram. 3. Draw bending moment diagram. 4. Approaches to draw diagrams: FBDs + equations (or integration), and graphical approach. For finding reactions: 1. = 0 y F and = 0 M . 2. For composite strctures, start w/ sub-structures. For shear force and moment diagram: 1. ) ( x q ) ( x V ) ( x M 2. Shear force diagram: “Follow directions of the Loads” (graphical approach). 3. A concentrated load will cause a jump in shear force diagram, but no effects on moment diagram. 4. A concentrated moment will cause a jump in moment diagram, but no effects in shear
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Unformatted text preview: force diagram ( counterclockwise: downward ; clockwise: upward ). 5. For overhang members, put equivalent forces and/or moments on the main member. 6. Zero moments: internal pin connections, end hinge/roller supports, free ends of cantilever beam. 7. What you need to put on shear force/moment diagram: the overall diagram, and the values of shear forces, moments at special points (e.g. support, points where concentrated forces or moments are applied, the points of any other purposes), equations (if required). 8. The sum of area under shear force diagram will equal to zero if there are no concentrated moments applied. area slope area slope...
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This note was uploaded on 09/18/2011 for the course EM 319 taught by Professor Staff during the Spring '11 term at Oklahoma State.

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