he cable of a suspension bridge, shown in Figure, runs over a frictionless pulley on top of each of the towers at A and B and is fixed by tension anchor at D and E. If the cable carries a uniform horizontally-distributed load of 120 kN/m, design the cable and towers. For the cable you will need to select the appropriate material, profile and cross-section to achieve an overall safety against tensile failure equal to 3. For the towers you will need to select the appropriate height, materiel and cross-section to achieve an overall safety against tensile failure equal to 3.

3. For the cables shown in Figure ST – 064 1. Compute the tension in each segment if P = 400 N. 2. Compute P in N if yo = 3 m. 1m 4 m 2.5 m 1.5 m Figure ST - 064 30 kN

A flexible cable is subjected to a uniformly varying load. If the tension at the supports is 12 kN, what is the value of the sag "h"? 4500 N/m 3000 N/m 3000 N/m 2.7 m 2.7 m

Q.1. (35%) Cable DB supports canopy beam OABC as shown in the figure. a) Find the required cross-sectional area of cable BD if the allowable normal stress is 200MPa. Je 1.5 m - P=25 kN b) Determine the required diameter of the pins at O if the 2.5 m allowable stress in shear is 120MP.. (Hint: use resultant 1.5 m- 1.5 m- force at O and The pin at O is in double shear.) A c) Determine the elongation and strain of the cable DB if 2.25 m E=180Gpa. (Consider the area of the cable DB as it is calculated in part (a)) Assume that canopy beam weight is W=11KN.

The cable exerts a force of P-6 kN at the end of the 8-m-long crane boom (Figure 1) Figure 1of1 Part A If-30, determine the placement ar of the boom at B so that this force creates a maximum moment about point O Express your answer to three significant figures and include the appropriate units Submit Part B Value (Mo) Request Answer What is this moment? Express your answer to three significant figures and include the appropriate units. Enter positive value of the moment is counterclockwise and negative value if the moment is clockwise. Value Submit Request Answ Units Pearson ? → Ć Units

The trusses are pin connected and suspended from the parabolic cable. If the structure is pin at B, hinge at A, and roller at C: a. b. C. d. ė What is the minimum tension of the cable DOE? What is the maximum tension of the cable DOE? What is the equivalent uniform load the cable is carrying? What is the length of cable DOE? K J ww 50 kN 60 kN 8 @ 6 m = 48 m 70 kN 7 m 12 m

A cable supports two vertical loads as shown in Fig. If the maximum tension in the cable is 1000 Ib, de- termine The vertical distances ys and yc. 15 ft 15 ft 15 ft A 7.5 ft D IC 500 lb 200 lb

A homogenous bar AC with negligible mass is supported by a pin at A and cable BC, carried a load of 20 kN as shown in the figure. Determine the pin diameter at A if the allowable shearing stress is 80 MPa. (double shear)

A main cable in a large bridge is designed for a tensile forceof 2,600,000 lb. The cable consists of 1470 parallel wires, each0.16 in. in diameter. The wires are cold-drawn steel w/ anaverage ultimate strength of 230,000 psi. What factor of safety wasused in the design of the cable? Answer is 2.62 (How do I get to that point?)

The link acts as part of the elevator control for a small airplane. If the attached aluminum tube has an inner diameter of 25 mm and a wall thickness of 5 mm, determine the maximum shear stress in the tube when the cable force of 600 N is applied to the cables. Also, sketch the shear-stress distribution over the cross section.