Prob. 1.4-11. Beam AD in Fig. P1.4-11 has a frictionless-pin support at A and a roller support at D. The beam has a linearly varying distributed load, of maximum intensity wo (force per unit length), over two-thirds of its length. (a) Determine the reactions at A and D, and (b) determine the internal resultants (axial force, shear force, and bending mo- ment) on the cross section at B. Wo D B C FL/3- L/3- L/3

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Equilibrium and Support Reactions

Civil engineers deal with structures that are composed of several members connected or with individual members such as beams and columns. To analyze such structures, the condition of statics must be applied. Under the static condition, the members are considered to be in equilibrium under the action of forces, that is, the members are assumed to be having negligible velocity.