![]() ![]() If moving from left to right, then take all upward forces as positive and downward as negative. ![]() Sign Conventions for Shear Force and Bending Moment Load spread over a beam, rate of loading varies from point to point along the beam Load spread over a beam, rate of loading w is uniform along the length The following are the important types of load acting on a beam: (vi) Continuous beam: More than two supports (iii) Cantilever beam: Beam fixed at one end and free at other (i) Simply supported beam: A beam with two simple supports Statically Indeterminate Beam: When the number of unknown reaction components exceeds the static conditions of equilibrium, the beam is said to be statically indeterminate.Statically Determinate Beam: A beam is said to be statically determinate if all its reaction components can be calculated by applying three conditions of static equilibrium.Note: The distance between two supports is known as “span”. (b) Hinge support or pin connection – resists horizontal and vertical forces ![]() (a) Roller Support – resists vertical forces only
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