Draw the influence line for member BC and interpret the diagram.

Q: 5 kN (4 kN 10 kN 10 m- 10 m 8 kN -10 m D 30 90 30 10 m 30 90 30 E Fig. P4.145

A:

Q: Which of the force systems in (b) through (f) are equivalent to the force-couple system shown in…

A: We need to check where the resultant force and moment is similar to A

Q: Q2. Draw the influence line for (Rb, Rc, Rf, Rg, Mp, Mm, and Mb) m A B C D E F G mmm b mom n mmm b.…

A: Step 1: Step 2: Step 3: Step 4:

Q: Classify the structure below as determinate or indeterminate and what degree of * indeterminacy.…

A: Number of reactions r = 2+1+2 =5 Equallibrium equation available in 2 dimensional body = 3 (ΣFx =0,…

Q: 5.0 The truss figure shown is pinned to the wall at point F, and supported by a roller at point C.…

A: Load act at point A= 80 kNLoad act at point B= 60 kN

Q: 10 ft 12 ft D E 60 k Pins at B and D 16 ft Fixed at A Pinned at F F - 8 ft A Prob 5) Solve for the…

A:

Q: Problem 5 Find the force P needed to hold the 3-m-wide gate in the position shown in Fig. 2.15(a) if…

A: Firstly finding x and y components of hydrostatic force acting on gate then taking moments about…

Q: Classify the structure below as determinate or indeterminate and what degree of indeterminacy.…

A:

Q: What is y-axis reaction at Support E (Reaction Ey) in KN?

A: For the given beam and loading, the y-axis reaction at support E has to be computed.

Q: Q4: Determine the reactions at the support A & B for the frame shown in Figure. 30KN 20KN 4m 3m 3m…

A:

Q: 1- determine the support reactions 2- determine the forces in members AE,AD, BE, DE, FC, BC

A: θ = 60°

Q: 2. Determine the magnitude of the pin force at B. 0.43 m 0.61 m 125 N-m B 0.43 m 0.43 m

A:

Q: Solve for the support reactions and draw and label the SFD and BMD

A: The given beam is shown below:

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.