Calculate Vertical Displacement at Point C with Virtual Loads in Truss

[vtaela]

Hi

I am trying to calculate the vertical displacement at point C for the following diagram

https://www.physicsforums.com/attachments/57161

So far i have calculated the forces in each member and i now need to calculate the Virtual forces!

I applied a virtual load at point c of 1 KN.

I also know that our structure is symmetrical!

Can you please help me to continue

Thank you

 

[SteamKing]

There's something wrong with your attachment. Please repost.

 

[vtaela]

 

[vtaela]

I have calculated tge vertical displacement to be 0.0172 mm