For the beam shown below. Construct the influence line for: The reaction at point B. The moment at point C. The shear at point D from the left. The shear at point D from the right.

Q: Determine the horizontal and vertical components of reaction at the pin A and the re the rocker B on…

A:

Q: the beam shown in the figure, draw the influence lines for the reactions MA and RA and the shear and…

A: To draw ILD

Q: Determine the horizontal component of reaction and the vertical component of reaction at D. Also…

A: Given : P1 = 9 kN and P2 = 17 kN Determine the horizontal and vertical component of reaction at D ?

Influence Lines

The graphs that show the variation of a function at a specific point on a beam or truss due to a unit load placed at any point along the structure are known as influence lines in engineering. Some common functions that are studied with influence lines are shear, moment, and deflection. In designing beams and trusses, it is important to use influence lines in structures where loads would move along their span such as bridges, crane rails, conveyor belts, floor girders, etc. The influence lines help to study where a load will create the maximum effect for any of the functions.