A steel bar AD has a cross-sectional area of 260 mm² and is loaded by forces P, = 12 kN, P, = 8 kN, and P3 = 6 kN. The lengths of the segments of the bar are a = 1.5 m, b = 0.6 m, and c = 0.9 m. (b) By what amount P should the load P, be increased so that end D of the bar does not move when the loads are applied? %3D %3D %3D P1 P2 P3 A В a Figure 86

A truss is loaded as shown in the figure. The cross- sectional area of each member is 500 mm^2. Hint: Use method of section in getting the axial forces. Use the guide cutting sections. L-6 m+6m- N 25 kN 8 m 50 kN - a 8 m 50 kN 8 m 50 kN 8 m B. 9. Find the axial stress in member HK O 35.34 MPa O 31.12 MPa O 33.34 MPa O 37.12 MPa Question 10 10. Find the axial stress in member HJ. O 125 MPa О 123 МPа O 127 MPa O 129 MPa

Calculate the force in member GL in kN LE in kN KE in kN KL in kN  DE in kN If the force is tensile, answer in positive value. Otherwise if it is compressive, answer in negative value.

Problem 7. [Concepts: Allowable stresses and factor of safety] Two aluminum rods AB and AC support a vertical load P. The allowable tensile stress for the aluminum is Gallow = 150 MPa. a) If P = 20 kN, determine the required diameters of the rods AB and AC. b) If the diameters of the rods AB and AC are 10 mm and 8 mm, respectively, determine the largest vertical force P that can be supported. U B

The Figure below shows a two-member truss supporting a block of weight W. The cross-sectional areas of the members are 800 mm² for AB and 400 mm² for AC. Determine the maximum safe value of W (kN) if the working stresses are 110 MPa for AB and 120 MPa for AC. ... B 40 deg. A 60 deg. A) 38.90 в) 55.30 61.70 76.2

Consider the truss shown in (Figure 1). Suppose that F = 10 kN. Figure 3 m L B C D E -2m-2m-2m-2m-2m-2m- 4 kN 5 kN H F F 6 kN 1 of 1 Part A Determine the force in member JK of the truss, and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. FJK = Submit Part B FCJ = Submit Part C 0 Determine the force in member CJ of the truss, and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. FCD = Value Submit Request Answer Value uA Request Answer 0 Determine the force in member CD of the truss, and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Enter negative value…

P1=58kN P2=80kN

ASAP

Set P = 4.5 kN. (Figure 1) Figure A 60° В. 4 m E 4 m 4 m 60 D 1 of 1 > Part A Determine the force in member AB of the truss. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. Submit Di FAB= Value Part B μÅ Request Answer μA FAE = Value Units Determine the force in member AE of the truss. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. Submit Request Answer P ? Units Review ?

The steel is supported by the steel tie rod in AB beam B. Steel connection tension rod is placed 2 meters to the left of B and C sliding bracket is placed and P is loaded between AC It is. By ignoring the weights of beams and connecting rods, they can be determine the largest P load it can carry. The diameter of the BD rod is 16 mm. E = 200GPa I = 150x106mm4