1. For the truss shown, a) Calculate the support reactions. (Note that the horizontal distance between A and B is 12.5 ft) b) Using the method of joints, draw the free body diagram for joint D and then find the member forces in Members CD and ED, also, indicate whether members CD and ED are compressions or tensions members. c) Using the cut X-X, draw the free body diagram for the cut section, and then find the internal forces in members AB, and AF. Indicate if members AB, and AF are compression or tension members. X 1000 lb 30 B D 800 lb 10 ft F 25 ft 25 ft 10 ft 650 lb X

1. For the truss shown, a) Calculate the support reactions. (Note that the horizontal distance between A and B is 12.5 ft) b) Using the method of joints, draw the free body diagram for joint D and then find the member forces in Members CD and ED, also, indicate whether members CD and ED are compressions or tensions members. c) Using the cut X-X, draw the free body diagram for the cut section, and then find the internal forces in members AB, and AF. Indicate if members AB, and AF are compression or tension members. X 1000 lb 30 B D 800 lb 10 ft F 25 ft 25 ft 10 ft 650 lb X

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

1. For the truss shown,
a) Calculate the support reactions. (Note that the horizontal distance between A and B is
12.5 ft)
b) Using the method of joints, draw the free body diagram for joint D and then find the
member forces in Members CD and ED, also, indicate whether members CD and ED are
compressions or tensions members.
c) Using the cut X-X, draw the free body diagram for the cut section, and then find the
internal forces in members AB, and AF. Indicate if members AB, and AF are
compression or tension members.
X
1000 Ib
30
B
800 lb
10 ft
25 ft
25 ft
10 ft
650 Ib
X

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