The antenna tower shown is attached to the foundation by a ball and socket joint. It is supported in its upright position by four high strength AC, AD and AE. Given: Height of tower, h= 20 m Diameter of tower, d = 150 mm Diameter of steel wires = 6.5 mm Steel modulus of elasticity = 200 GPa Find the force in wire AD if a pulling force F = 5 kN acts along the x- axis at the tip of the tower. F 8.0m 12.0m 12:0m 12.0m 12.0m 12.0m B

The antenna tower shown is attached to the foundation by a ball and socket joint. It is supported in its upright position by four high strength AC, AD and AE. Given: Height of tower, h= 20 m Diameter of tower, d = 150 mm Diameter of steel wires = 6.5 mm Steel modulus of elasticity = 200 GPa Find the force in wire AD if a pulling force F = 5 kN acts along the x- axis at the tip of the tower. F 8.0m 12.0m 12:0m 12.0m 12.0m 12.0m B

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

In the truss shown in Figure. Determine the force member at AC. * 400 kN 800 kN 6 m D 3 m A F 3 m 6 m E 6 m 200 kN 200 kN O 440 KN compression O None of the above 440 KN tension 491.94 KN tension 491.94 KN compression B.
Problem II. The truss shown in the figure below is applied with force P (refer to the table of values for P). E 1.5 m 1.5 m A 1.5 m P (kN) P = 200kn 2 m 2 m- a. How much is the force in member DE (include whether tension or compression)? b. How much is the force in member BC (include whether tension or compression)? c. What is the greatest force P (different from the one given) that can be applied to the truss such that no member is subject to a force exceeding 2.50 kN in tension or 2 kN in compression?
A steel [E = 25500 ksi] pipe column (1) with a cross-sectional area of A1 = 5.60 in.2 is connected at flange B to an aluminum alloy [E = 17500 ksi] pipe (2) with a cross-sectional area of A2 = 4.40 in.2. The assembly is connected to rigid supports at A and C. For the loading shown, determine the normal force in the steel pipe (1).
2. The beam is constructed from four boards as shown on the figure. If it is subjected to a moment M, = 30 kN.m 25 mm 250 mm 25 mm 250 mm B. 25 mm 350 mm 25 mm a) Determine the stress at A. b) Determine the stress at B. c) Determine the resultant force the stress produces on the top board C.
A cantilever beam has the Cross-section of an isosceles triangle with a base and height equal to 1 m each. The beam is subject to 6 MN-m 1 m4. of bending moment. The moment of inertia of the section is 18 Find the maximum bending stress in MPa.
A pin-connected truss is loaded and supported as shown. Each aluminum member has a cross-sectional area of A = 2.6 in.². Assume a = 4.75 ft and b = 5.70 ft. If the normal stress in each member must not exceed 60 ksi, determine the maximum load Pmax that may be supported by the structure. b B E b
A steel [E = 41000 ksi] pipe column (1) with a cross-sectional area of A1 = 5.60 in.2 is connected at flange B to an aluminum alloy [E = 5750 ksi] pipe (2) with a cross-sectional area of A2 = 4.40 in.2. The assembly is connected to rigid supports at A and C. For the loading shown, determine the normal force in the steel pipe (1).
Pin-connected rigid bars AB, BC, and CD are initially held in the positions shown by taut wires (1) and (2). The bar lengths are a = 36 ft and b = 27 ft. Joint Cis given a horizontal displacement of 5.7 in. to the right. (Note that this displacement causes both joints B and C to move to the right and slightly downward.) What is the change in the average normal strain in wire (1) after the displacement? B (1), a (2) Answer: = i (0)
3. The center post B of the assembly has an original length of 124.8 mm whereas posts A and C have a length of 125 mm. If the caps on the top and bottom can be considered rigid, determine the average normal stress in each post. The posts are made of aluminum and have a cross sectional area of 400 mm². Ea=70 GPa. Use the Force Method 100 mm -100 mm 800 kN/m 125 mm 800 kN/m
Determine the largest weight W that can be supported by the two wires AB and AC. The working stresses are 14.5 ksi for AB and 21.8 ksi for AC. The cross-sectional areas of AB and AC are 0.6 squares inches and 0.3 squares inches respectively. 30° A 45° W B.
In the truss shown in Figure. Determine the force member at DE. * 400 kN 800 kN 6 m 3 m F 3 m 6 m E 6 m 200 kN 200 kN 1440 KN tension O 1440 KN compression 200 KN tension None of the above O 200 KN compression
Jertical beam of the applied to a shown. Determine forces are cross section compressive BC of the the maximum Stresses bRam. tensile and portion. 9,25 kN in 45mm I10mm 30 mm 30mm 400mm 500mm