Stiffeners for Steel Liner Penstock Transition
Stiffeners for Steel Liner Penstock Transition
(OP)
Hi. I am studying how to calculate for the required external stiffener of a transition (rectangular to circular) on a penstock. The penstock is buried and has an external pressure of 0.6 MPa. Internal dimension of the transition is 4mW x 4.5mH to 2m internal dimension.
I am looking at 2 cases. Case 1 is without support from the concrete, while Case 2 has support from concrete. Any idea how to calculate for the stiffener's dimension? I've got the transition plate thickness of 12mm at S235JR.
Thanks in advance for your comments.
I am looking at 2 cases. Case 1 is without support from the concrete, while Case 2 has support from concrete. Any idea how to calculate for the stiffener's dimension? I've got the transition plate thickness of 12mm at S235JR.
Thanks in advance for your comments.





RE: Stiffeners for Steel Liner Penstock Transition
- AISI - Steel plate engineering data vol 4
- Swanson - design of wye branches for steel pipes - Journal AWWA june 1955
- USBR nr 3 - welded steel penstock 1986
- USBR nr 32 - Stress analysis of wye branches - RUUD 1964
- structural mechanics of buried pipes chapter 18
RE: Stiffeners for Steel Liner Penstock Transition