For the beam as loaded below by a moving concentrated live load of 20 kN.     1. The maximum ordinate of the influence line for the reaction at the left support is most likely equal to : a. 0.14 b. 0.23 c. 0.35 d. 0.28 2. The maximum positive value of the left reaction due to the moving concentrated live load if its location is at point B is :  a. 10.15 kN b. 17.25 kN c. 14.20 kN d. 18.50 kN 3. The value of the maximum positive bending moment at B due to the live load is equal to :  a. 35.25 kN-m b. 28.40 kN-m c. 40.12 kN-m d. 50.25 kN-m

Q: P12.3. Draw the influence lines for the reactions at supports A and C, the shear and moment at…

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Q: The beam is used to support a dead load of 2 k/ft, a live load of 2 k/ft, and a concentrated live…

A: Given DL = 2K/ft LL = 2 K/ft And,  concentrated live load = 52 K Required: 4. Determine the maximum…

Q: Draw the influence lines for the vertical reactions at supports A, C, and E, the shear just to the…

A: A beam is given and finding out influence line diagrams

Q: Determine the influence line of this beam: Determine also the 11 KN/M 1. Maximum upward reaction at…

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Q: a. Maximum upward reaction at A in kN, put “0” if none. b. Maximum upward reaction at C in kN, put…

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Q: (a) Draw the influence line for the positive moment at B (Figure P12.53). (b) If the beam carries a…

A: Given- UDL live load=2kips/ftConcentrated  live load=20Kips/ft

Q: Determine the maximum upward reaction at E in kN a= 45 kN (concentrated load) b= 50 kN/m (uniformly…

A: Given data: wL=50 kN/mwd=23 kN/mP=45 kN

Q: Resolve the internal load in each member of the truss by the method of joints. 10kN Sm 3m 2 m 4 m 6m

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Q: Construct the influence lines for the verti- cal reaction at support A and the moment at support C.…

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Q: P2) Draw the influence lines for members KJ, KD, CD, and JD. Find the maximum positive value of each…

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Q: Hinge A B D -10 ft---10 ft --- –20 ft- 20 ft- 3. What is the maximum ordinate of the influence line…

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Q: Construct the influence lines for the vertical reactions at A and B for the beam shown below. Also…

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Q: 3. Draw the Influence diagram of the given beam. A AMX 4m D 7m WX B 3m C A. Draw the influence line…

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Q: 2) SOVE FOR THE REACTION AT A AND B a. PARALLEL FORCE 20 KN 20 kN 20 kN 10 kN 10 kN 30° 30 5m 5 m 5…

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Q: which of the following nearly gives the member end moment at C 116.66 kN - m b. 102. 63 kN - m c.…

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Q: For the beam shown in the figure below, draw the influence line for RC, and determine the maximum…

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Q: 43 kN /m 17 KN/m B E 26KN-m

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Q: Draw the influence line for RC determine the maximum absolute reaction (negative or positive) at C

A: GIVEN-  a beam carrying concentrated live load of 38.9 kN, a uniformly distributed live load of 38…

Q: The beam in the figure below is subjected to a concentrated live load of 15 kN, a distributed dead…

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Q: when no loading is present, sketch the influence lines for the reactions at A and B, and the…

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Q: A 12m+ -2 m- B b -4 m- C -4 m-

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Q: Find the max upward reaction at E in kN. Put 0 if none 45kN- concentrated load 50kN/m- Live load…

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Q: A B D E F 2m - 2m 4.5m 2.0m 3.0m 1.5m

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Q: solve for the reactions of the beams

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Q: Pin support B roller A 3 m 1 m

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Q: 1. Draw the influence line for the vertical reaction at  internal hinge C. 2. Determine the length…

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Q: Solve the reaction of Beam

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Q: 3. Draw the Influence diagram of the given beam. Solve questions D, E and F A 4m 7m AX B 3m C A.…

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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.