1. Replace the existing beam with an l-Beam structural steel. The maximum flexural stress of steel is limited to 120 MPa. 250 mm 20 KN 10 KN/m 50 mm 350 mm 5 KN/m 2 m 1 m D 2.5 m 200 mm A B

Determine the magnitude of the vertical force C, for the simply supported beam, where w = 10 kips/ft, L1 = 10 ft, and L2 = 3 ft. L2 O 53.2 kips о 38.5 kips 41.6 kips 28.1 kips 45.4 kips

2. Determine the maximum tensile and compressive stresses in the beam shown in Fig. 2. (Ans. 45 MPa; -54 MPa). 60KN -60KN ΠR250 160mm 10mm 150mm 10mm 75mm 150mm 10mm

Given the beam and the loading shown below, if L = 5 m, W1 = 4.5 N/m and w2 = 22.3 N/m. Calculate the vertical reactions at the supports. W2 w(x)=w, +ax³ L A B X Reactions: Ay = 单位 (tolerance 0.5 N) By = |数字 单位 (tolerance 0.5 N)

The strut on the utility pole supports the cable having a weight of P = 300 lb. (Figure 1) Figure 1.5 ft -2 ft- 4 ft 1 B < 1 of 1 2 in. HT I4 in. Part A Determine the absolute maximum bending stress in the strut if A, B, and C are assumed to be pinned. Express your answer in kilopounds per square inch to three significant figures. omax = Submit Provide Feedback VO VE ΑΣΦ AΣ vec Request Answer ? ksi

Calculate and plot the stress diagrams for the beam below. 7kN m 5 kN/m C B D= 3m + D/2 + D/2 -| 12KN

After greetings, How to solve this problem and what’s the final answer? AND THANK YOU VERY MUCH.

For the simply supported beam shown in Fig. 2.compute the maximum shear stress and draw the shear stress distribution. 6 kN/m C 50 mm A 1.5 m 3 m- 3ML1.5 m Fig.2 -50 mm r10

Consider the beam in (Eigure 1). Take that P₁ = 11 kN and P₂ = 17 kN. Follow the sign convention. Determine the normal force, shear force, and moment at point C. Figure 1.5m 15 m 1.5 m 1.5 m 1 of 1 B € Part A Determine the normal force at point C. Express your answer to three significant figures and include the appropriate units. Ne= Value Submit Request Answer Part B HA Ve Value Submit Determine the shear force at point C. Express your answer to three significant figures and include the appropriate units. Part C Me= Submit Request Answer Units Value Determine the moment at point C. Express your answer to three significant figures and include the appropriate units. Request Answer Units ? Units ? ?

Determine the maximum tensile and compressive stresses developed in the overhanging beam that is loaded and has the cross- sectional properties as shown. 1600 lb 4000 lb 2 in N.A. 6 in 6 ft R I- 90 in 6 ft tensile stress = 3, 840 psi and compressive stress = 7, 680 psi tensile stress = 1, 280 psi and compressive stress = 2,560 psi tensile stress = 7, 680 psi and compressive stress = 3, 840 psi tensile stress = 7, 680 psi and compressive stress = 2, 560 psi