Question: How to calculate the temperature parameter f1 and f2 , for applying temperature load on the
structure .
Answer :
You have to know three temperatures :
1) the stress-free
temperature, which is the temperature that the structure was at when it was
constructed or installed. Call it A.
2) The temperature of the top fiber (the fiber that is farthest along the positive direction of the local Z
axis of elements and local Y axis for beam). Call it B.
3) The temperature of the bottom fiber (the fiber that is farthest along the negative direction of the local Z axis of element and local Y axis for beam). Call it C.
When you specify the temperature load, the command is
member-list TEMPERATURE f1 f2
where
f1 = (B+C)/2 - A
f2 = B-C
Also, kindly refer to article 5.32.6 of the Technical Reference Manual of Staad.pro