Civil Engineering - Theory of Structures - Discussion
Discussion Forum : Theory of Structures - Section 1 (Q.No. 38)
38.
The force in AD of the truss shown in given figure, is
Discussion:
9 comments Page 1 of 1.
Pawan said:
5 years ago
Thanks @TAPAS.
Adarsh said:
5 years ago
Very good, thanks @Dhendu.
Tapas said:
6 years ago
@Manoj Paridwal.
When axial force moves towards the joint it is compression. As the reaction on the left side +ve so it is an upward reaction, so to balance it an equal downward force will be induced in the member AD. Hence both as the forces are moving towards the joint A hence the member AD is under compression.
When axial force moves towards the joint it is compression. As the reaction on the left side +ve so it is an upward reaction, so to balance it an equal downward force will be induced in the member AD. Hence both as the forces are moving towards the joint A hence the member AD is under compression.
Manoj paridwal said:
7 years ago
How it is compression. Show it will be .5 tension?
Michelle said:
8 years ago
Hi @Ddendu.
How is EF=BC= X? Are all the members equal in a truss all the time?
How is EF=BC= X? Are all the members equal in a truss all the time?
Pradyumna Kumar Nayak said:
8 years ago
Considering the joint A.
As Va = 0.5 T upward.
fac = 0 & fad = 0.5T compression.
As Va = 0.5 T upward.
fac = 0 & fad = 0.5T compression.
Pradyumna Kumar Nayak said:
8 years ago
Hello, Ishan.
It is a perpendicular distance of line of force and point B. So only x is multiplied.
It is a perpendicular distance of line of force and point B. So only x is multiplied.
Ishan said:
8 years ago
Hello Ddendu can you tell me, why the x is multiplied with 4t, as it is 2x distance away from B.
Ddendu said:
1 decade ago
Reactions are Va + Vb = 5t.
Let length of each member be x.
Moment atB = 4t * x - 5t * x + Va * 2x = 0.
Therefore 1t = 2Va.
Hence Va = 0.5t.
Let length of each member be x.
Moment atB = 4t * x - 5t * x + Va * 2x = 0.
Therefore 1t = 2Va.
Hence Va = 0.5t.
(3)
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