Rigid bar AB is used as a structural element for a canopy. Bar AB carries an idealized uniformload of 4.5 kN/m. Aside from a pin connection at A, bar AB is additionally supported by a steelcable BD at point B and a steel pipe CE at point C. (Esa=200 GPA, a=11.7×10*/-C)The length of cable BD is 2V3 m and its cross-sectional area is 120 mm?. Its inclination from thehorizontal is 0,=30". As for the pipe bracing CE, its length is v2 m and its cross-sectional area is490 mm. Pipe CD is inclined 0,-45° from the horizontal.Additionally, the pipe bracing CE is heated by AT-5•C.4.5 kN/mA 0,BE1.0 m-2.0 mDetermine the:vertical displacement of point C (y.)Equation relating T80 & FCEdisplacement of point B (A,)

Answered: Image /qna-images/answer/9d142d37-a809-401d-8b5e-23df02513f4a.jpg

Answered: Rigid bar AB is used as a structural…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The upper deck of a football stadium is supportedby braces, each of which transfers a load P = 160 kips tothe base of a column (see figure part a). A cap plate atthe bottom of the brace distributes the load P to fourflange plates (t f =1 in.) through a pin (d p = 2 in.) totwo gusset plates (tg =1.5 in.) (see figure parts b and c). Determine the following quantities.(a) The average shear stress τaver in the pin.(b) The average bearing stress between the flangeplates and the pin (σbf ), and also between thegusset plates and the pin (σbg ).Disregard friction between the plates.
Q1 (а) A hollow circular post ABC as shown in Figure Q1 (a) supports a load P, = 65B5 N acting at the top. P2 is applied around the cap plate at B. The outer diameters and thicknesses of the upper and lower parts of the post are dAB = 30 mm, tu =1A mm, dzc = 50 mm, and t3c =9 mm , respectively. A=1 B=0 (i) Calculate the normal stress o AR on the upper part of the post. (ii) If it is desired that the lower part of the post have the same compressive stress as the upper part, what should be the magnitude of the load P,? (111) If Pi remains at 65B5 N and P2 is now set at 10050 N, what is the new thickness of BC that will result in the same compressive stress in both parts?
A truss is composed of members AB, BC, CD, AD and BD, as shown in the figure. A vertical load of 10 kN is applied at point D. The magnitude of force (in kN) in the member BC is_ |10 kN (D 45° 45°
An aluminium hollow box column of square cross section is fixed at the base and free at the top. The width of each side is b=150 mm and the thickness t=10 mm. A compressive load P = 160 kN acts on the outer edge of the column at the midpoint of the side as denoted by P. What is the longest permissible length L of the column if the stress is not to exceed 100 MPa? (E = 70 GPa) b Section 4-A
5. Determine the allowable axial load PA for a W250 x 67 steel wide-flange column with pinned ends (see figure below) using a Factor of Safety n=1.5 for the following lengths: L-3 m, 5m, 8 m and 10 m. Assume E-200,000 MPa, and G-300 MPa. 7 L A Pl A ISTE Section A-A
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A simple truss structure is shown in the following Figure. Point B is pin supported, and point C is roller supported. An external force F=4kN applied at joint A horizontally. What is the member force in member BC? ↑ 1m O O 4 KN 2 kN B Don't Know 8 kN 3.46 kN 30⁰ F=4KN 30⁰
A prismatic bar is supported between two rigid supports as shown in figure. The support reaction will be A B C 10 kN 1 m 2 m
Figure 2 shows a horizontal beam AB. It is pin-supported at end A and carrying a load Q at end B. The beam is supported at C by a pinned-end column. The column is a solid steel bar of square cross-section having length L and side dimension b = 60 mm. Based upon the critical load of the column, if the allowable load Q is given by 109 KN with the factor of safety n = 2.0 with respect to buckling, determine the length of the column. E = 200 GPa 2d Q Figure 2 (201
///// Figure 1. In the figure shown, a bar ABC with negligible mass carries a 20. kN load and is supported by pin at A and a rof at B. Determine the diameter of the pin A = 900 mm? L= 3 m. cable at A it is double shear. E = 70 GPa 3 m. 2 m. Double shear A B C 60° P = 20 kN
The horizontal beam ABC shown in thefigure is supported by columns BD and CE. Thebeam is prevented from moving horizontally bythe pin support at end A. Each column is pinned atits upper end to the beam, but at the lower ends, supportD is a sliding support and support E is pinned.Both columns are solid steel bars (E = 30 x 106 psi)of square cross section with width equal to 0.625 in.A load Q acts at distance a from column BD.(a) If the distance a = 12 in., what is the criticalvalue Qcr of the load?(b) If the distance a can be varied between 0 and40 in., what is the maximum possible value ofQcr? What is the corresponding value of thedistance a?
Figure Q2 shows an 11 m long steel beam AC of uniform cross-section, simply supported at left end A and roller supported at location B. A uniformly distributed load of 40 kN/m is applied on the part AB of the beam together with a concentrated load of 20 kN at the end C. 20 kN 40 kN/m В. 8 m 3 m

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