8 ft 8 ft 8 ft 8 ft 8 ft A В C Prob. 6–35

Q: O kN are placed on the floor beams. If the beams also sup ad of 700 Nm, determine (a) the maximum…

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Q: Q10) Draw the influence line for the force in member GD, then determine the maximum force (tension…

A: Given  A uniform load of 3 KN/ m is acting on the bridge deck.

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

A: Solution: Considering the diagram of Truss: Applying a unit load at x from point A and find the…

Q: Determine the resultant force at pins A, C, and E. Also, determine the forces on pin D. y 80 kN/m 40…

A: in the given beam the transverse loading on the beam both shear force and bending moment my…

Q: Draw the influence lines for (a) the vertical read (b) the shear at C, and (c) the moment at C.…

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Q: Draw the influence line for the forces in members: UU2 UiL2 and U2Ls 30

A: Influence line diagram for force in member U1U2Consider the free body diagram shown in figure by…

Q: Draw the influence line for the force in member GD, then determine the maximum force (tension or…

A: Given: Uniform live load = 3kN/m Find: Maximum force and Influence in member GD

Q: The beam supports a distributed live load of 1.5 kN/m and single concentrated load of 8 kN. The dead…

A: First drawing ILD

Q: Q7 Determine the maximum positive moment at the splice C on the side girder caused by the moving…

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Q: Draw the influence line for the truss member JK, DK and DE. PF1.0 C D E 6 @3m = 18 m B

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Q: Draw the influence line for the force in member KJ. K 3 m G C D E tom B F 4 m- -4 m 4 m 4 m-

A: Solve for the reaction at A due to unit load that move across the bottom chord. ΣMG=0  ⇒ RA×24 =…

Q: Determine the mnaximum positive moment at C using the influence line and considering the given loads…

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Q: Draw the influence line for the shear within panel cd and for the moment at e in the girder.…

A: Draw the influence line for the shear within panel cd and for the moment at e in the girder.To…

Q: PROBLEM 1 Draw the influence line for member GH of the bridge truss shown. Determine the maximum…

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Q: Draw the influence line for the force in (a) member EF and (b) member CE.

A: An influence line represents the variation of either the reaction shear moment or  a deflection at a…

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.