4-42. Determine the horizontal and vertical compo- ents of the pin reaction at B of Fig. P4-42 on mem-

Q: P1. Determine the distance x measured from the y axis to the centroid of the area of the iangle…

A:

Q: For the boom and loading shown, determine (a) the tension in cord BD, (b) the reaction at C. 12 in.…

A: Point load of 3kips acing at AHorizontal distance between A and B=16inHorizontal distance between B…

Q: 4.3 Determine the horizontal and vertical components of reaction which the pins exert on member EDC…

A:

Q: Problem3.3.9: compute the total reactions at A and b on the truss as shown in the fig. 22.4 kN 6m 20…

A:

Q: al-sized pieces and arranged as si ermine the ratio of the drag on the o

A: Drag force is given…

Q: Draw the influence line for the force in memeber HG and BC of the bridge truss shown

A:

Q: 25 10 +4₂ 4¹ P1-56 20% 25¹b 1-56. By means of the transformation of a couple, replace the four…

A:

Q: 50 P1-54 1-54. By means of the transformation of a couple, replace the two forces of Fig. P1-54 by a…

A: Given:

Q: 5. Determine the reactions for the beam loaded as shown in Fig. P-334. 150 lb/ft- 120 1b 60 lb/ft 6-…

A:

Q: Determine the reactions at the supports for the beam show.

A: Reactions:Take moment about B:∑ MB=0RA20+3030+60-230302-12×3-22030-103=0RA=657.3320RA=33.6677kips

Q: 3.1 through 3.4 Classify each of the structures shown as terminate. If the structure is statically…

A:

Q: Determine the reactions at the supports for the structures shown

A:

Q: 1-12* A beam is loaded and supported as shown in Fig. P1-12. Determine the reaction at support A.

A: Given beam is Cantilever loaded with point load=2 kn and couple=3 kn-m It is asked to find support…

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.