- #1

Hello,

I was curious, for the method of joints truss analysis, when considering a joint, is it assumed that all forces at that joint are radiating away from the joint (meaning tension), even if it was already found from a previous joint that the member is acting in compression?

I'm not sure if this question is clear or not, I mean say you have a joint A and B..it was found that member AB is in compression. Does that mean when analyzing joint B, you still consider the force of member AB as tension, or do you keep the negative sign when trying to find the member AC?

Also, say member AF is in tension, thus has a positive sign for force. Does that mean member FA is tension as well, or is it now compression?

I was curious, for the method of joints truss analysis, when considering a joint, is it assumed that all forces at that joint are radiating away from the joint (meaning tension), even if it was already found from a previous joint that the member is acting in compression?

I'm not sure if this question is clear or not, I mean say you have a joint A and B..it was found that member AB is in compression. Does that mean when analyzing joint B, you still consider the force of member AB as tension, or do you keep the negative sign when trying to find the member AC?

Also, say member AF is in tension, thus has a positive sign for force. Does that mean member FA is tension as well, or is it now compression?

Last edited by a moderator: