Draw the free-body diagram of the beam, which is pin-supported at A and rests on the smooth incline at B. Neglect the weight of the beam. 0.6 ft 0.6 ft 400 lb 800 lb -3 ft 800 lb 3 ft 600 lb 3 ft 600 lb -3 ft B 1.2 ft Solution 1. Imagine the beam to be separated or detached from the system. 2. There is a pin connection at A and the beam rests on the smooth (inclined) surface at B. Use Table 2.1 (6) and (8) to determine the number and types of reactions acting on the beam at A and B. 3. In addition to the forces shown in the figure, the beam is subjected to three external forces. They are caused by: ii. i. iii. 4. Draw the free-body diagram of the (detached) beam showing all these forces labeled with their magnitudes and directions. Assume the sense of the vectors representing the reactions acting on the beam (the correct sense will always emerge from the equilibrium equations for the beam). Include any other relevant information e.g. lengths, angles etc. which may help when formulating the equilibrium equations (including the moment equation) for the beam.

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Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.