Assignment No 4 Ch 7.2 Tension

7. Explain the tension coefficient method of calculating the internal forces in the members of a simple three-dimensional truss. 8. Derive expressions for the state of frameworks with or without foundations 9. Using the knowledge gained from your research into two-dimensional frameworks, solve the following: Details for the bridge truss design: 8KN 6KN GKN A Warren girder bridge truss that will be subjected to loads as shown above is to be designed and analysed. All triangles are equilateral triangles and member a-b is 2 m long. Calculate the following: State the nature of the framework. • Calculate the reactions at the supports. Using the method of sections (analytical method), calculate the magnitude of the internal forces in member b-c, b-g and g-h and state the sense (nature) of each force.

A new art exhibit featuring mobile works is going up in the Holland, MI, area. One piece is shown in the figure. The 155-N uniform beam is pinned to the ground by a pivot. The beam is supported by a cable (attached to the center of the beam) to allow for each of the shoes to hang freely. Each individual shoe has a weight of 9.5-N.  If one shoe is attached two-fifths of the way up the beam and another shoe is attached and three-fifths of the way up the beam, with θc = 16.5° and θb = 33.6° as shown in the figure, what is the tension in the cable, in newtons?   What is the x-component of the force, in newtons, that the pivot exerts on the bottom of the beam? Use the coordinate system specified in the figure.   What is the y-component of the force, in newtons, that the hinge exerts on the bottom of the beam? Use the coordinate system specified in the figure.

Note:- • Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. • Answer completely. • You will get up vote for sure.

Homework No. 3: 4. A truss of 5 m span and 2.5 m height is subjected to wind load as shown in Fig. 12.39. 10 kN 20 kN 2.5 m 10 kN 5 m

Example 8.6 A Weighted Forearm Goal Apply the equilibrium conditions to the human body. -Humerus Problem A W = 47.3 N (11 lb) weight is held in a person's hand with the forearm horizontal, as in Figure 8.11. The biceps muscle is attached d = 0.0302 m from the joint, and the weight is / = 0.351 m from the joint. Find the upward force F exerted by the biceps on the forearm (the ulna) and the downward force R exerted by the humerus on the forearm, acting at the joint. Neglect the weight of the forearm. W Biceps Ulna W (a) (b) Figure 8.11 (a) A weight held with the forearm horizontal. (b) The mechanical model for the system. Strategy The forces acting on the forearm are equivalent to those acting on a bar of length 0.351 m, as shown in Figure 8.1lb. Choose the usual x- and y-coordinates as shown and the axis O on the left end. (This completes Steps 1 and 2.) Use the conditions of equilibrium to generate equations for the unknowns, and solve. Solution ET; = TR + TF + TBB = 0 R(0) + F(0.0302…

Using the method of sections, analyse the truss shown in Figure 8 below regarding forces in members ED, DF and FC. 1.5 m 10 kN- 1 m Ec 1 m D. 1 m 7777 Figure 8 /4 1/4

Aluminum 10K 12' Steel A 12' long beam in supported by an aluminum hanger at A and by a steel hanger at B. The beam carries a single 10K concentrated load. Neglect the self-weight of the beam. Both hangers have the same original length. Ealum = 10,000,000 psi Esteel = 29,000,000 psi If the load is located at midspan, and the steel hanger is a 1/2" x 1/2" bar, what is the width of the 1/2" aluminum bar, such that points A and B lie on the same horizontal line?

-30 ft 30 ft 30 ft 30 ft→* 30 ft → 30 ft → Problem 16.51 P16.52 Determine the maximum and minimum axial forces in mem- ber CH of the truss in Problem 16.45 given the following loading scenario: uniform dead load of 1 klf, a moving

What is the Vertical Reaction at B in kips? [add negative (-) sign if answer is to the left / downwards]

1)Calculate force in each member using method of joints. 2)Calculate force in each member using method of sections. 3)Summary of calculations for proposed truss design

Please explain the step and show Free Body diagram analysis for this question

Structural analysis:: truss.. please try to solve it

Problem 1: Solve for Stability and Determinacy for the truss frames shown. Truss 1: b: r = Stable Yes, No Truss 1 Truss 2: b = r = %3D Stable Yes, No Truss 2 Truss 3: b = r = %3D Stable Yes, No Truss 3 Truss 4: b = r = j= %3D Stable Yes, No Truss 4 II II

Figure 1 shows a truss under three vertical loads applied at point Question 1' B, C, and D. Find the axial forces in bar AF, CF, and BC. 80 AN 100 KN Fig. 1. The kft of the trus is supported by a pim, aand the right of the truss is supported by a roller.