5.3 and 5.4: Draw the influence lines for the forces in the members identified by an "x" of the truss shown. Live loads are transmitted to the bottom chords of the trusses. + H B X X J X D 6 @ 16 m E 96 m Figure P5.3 F (FCD= -1.6 at A; 0 at C, D, E, F, and G FCI= -1.8 at A; 0 at C and E; -0.5 at D; I at G FDI = 1.494 at A; 0 at C and E; 0.534 at D; -1.067 at G m 8 m 12 m

Q: 4) Find the magnitude and direction of the resultant force and moment at A 1414.21lb 2.53' -1000lb…

A: To find resultant and moment about point A

Q: Assume that the loads are being transmitted to the bottom chord in the truss depicted, and draw the…

A:

Q: From the given truss shown compute the force in member ED FD, and FC

A: Step 1: Step 2:

Q: For the truss shown in the figure below, assume that the loads are being transmitted to the bottom…

A: Solution  ILD for member DI  Pass a section through member DI as shown below When the Unit load is…

Q: Q6) Use the Müller-Breslau principle to sketch the influence lines for the vertical reaction at A,…

A:

Q: The moving load is transmitted to the bottom chord of the truss. F G 3 m B C D 3 panels at 4 m = 12…

A: considering joint d

Q: Determine the support reactions and all internal pin forces.

A:

Q: Replace the loading by an equivalent resultant force and couple moment acting at point O.

A: Consider the figure,

Q: Determine the reactions hinges A and D exert on the frame and the force in each two force member.…

A: Member BCD. The following figure shows the Free Body Diagram of Member BCD. The number of unknowns…

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…

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Q: 100 N 800 N-m •B 5 m 5 m

A:

Q: Which of the following is corresponds to the force acting at member CE? E 20 k 12 ft C D 12 ft 5 k B…

A: Let, The angle makes by member CE for line of 20 k load = θSo, tanθ = 1024θ = 22.62oThe angle makes…

Q: Akip/ft P=8 kip B 4' 60 61 ,2' 31

A: (2) The equivalent concentrated force of the UVL is calculated as, Equivalent concentrated…

Q: 10 kip E | D 000 4 ft 7 kip F 000 000 4 ft A В 000 Which of the following is closest to the…

A:

Q: Compute the reactions at A and D. Determine the internal forces in each member of the truss using…

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.