Virtual Work / Unit-load: Truss deflections - Example 1

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Worked example of the calculation of the deflections of a truss using virtual work / unit-load method.
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Thank you for this video, just wanted to ask whether the horizontal unit load applied is always to the right or could it be applied either side?

gotemnausiah
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Good detail of the process. Very unintuitive however that summing the axial displacements would result in a total deflection in the direction specified.

TheSterlingArcher
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How can I check if this deflection is acceptable or not?

Mohamed-efzw
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Isn't this a determinate truss?
How do we approach a problem with indeterminate truss??

kashifanihaan
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Sir you have stopped making videos. There is almost 95% work left undone by you both in structure analysis I and II. Any reasone for not making any video.

sohailahmed