As a follow-up, I ran a test case. I have three sets of 2 tees.
2 tees are at 100°. (nodes 10-20, 20-30, 20-40) & (110-120, 120-130, 120-140)
2 tees are at 100° run and 800° branch. (add 200 to previous node numbers)
2 tees are at 800°. (add 200 again)
All 6 tees are anchored on one run side.
3 tees are restrained rx, ry, and rz on the branch end, with a force/moment applied to the opposite end of the run as F1= 1000x, F2=1000y, F3=1000z. M4=1000x, M5=1000y, M6=1000z. (10-40, 210-240, 410-440.)
3 tees are restrained and a load applied as the reciprocal as described in the previous paragraph. (110-140, 310-340, 510-540).
Because nodes X20 (020, 120, 220 etc) show up three times each in element definition, stresses are calculated three times for each X20 node, each using the temperature of its parent element.
So, yes, allowable stress is calculated at cold, and yes, allowable stress is calculated at hot. Stresses are then calculated for each end individually, and the maximum will apply for that node.
Attachments
TEMP.C2 (268 downloads)temp.zip (240 downloads)
Edited by Michael_Fletcher (02/01/18 01:39 PM)