Posted by: Borzki
Occasional Load Case Set-up for ISO 14692 - 03/19/19 07:09 AM
Hello Stressers!!!
For occasional stress evaluation in ISO 14692 which one of the two load case is correct (assuming U1=seismic load)
1) Load Case 1:
W+T1+P1+U1
or
2) Load Case 2:
Same as ASME B31.3 set-up (Sustained + Occasional Load). I will not write down the details since every stress engineer already familiar with this.
I think it is Load Case 1. If this is the case, then for mix piping (FRP & Steel), the load case for occasional stress is different and must be set-up accordingly. One FRP vendor assume the occasional stress is same for both Code, and they use the load case 1 for both codes which is obviously not in accordance with ASME B31.3.
Please correct me if I'm assuming it wrong.
Thanks & Warm Regards
For occasional stress evaluation in ISO 14692 which one of the two load case is correct (assuming U1=seismic load)
1) Load Case 1:
W+T1+P1+U1
or
2) Load Case 2:
Same as ASME B31.3 set-up (Sustained + Occasional Load). I will not write down the details since every stress engineer already familiar with this.
I think it is Load Case 1. If this is the case, then for mix piping (FRP & Steel), the load case for occasional stress is different and must be set-up accordingly. One FRP vendor assume the occasional stress is same for both Code, and they use the load case 1 for both codes which is obviously not in accordance with ASME B31.3.
Please correct me if I'm assuming it wrong.
Thanks & Warm Regards