Hello,

Can anyone tell me pleas,how to activate pressure stiffening for streight pipe in caesar as I understand in confg. it's possible to activate pressure stiff for bends only?

Thanks

This is not an option in CAESAR II.

In caesar II main window Go to
Tools> Configure/Setup > select the pull down menu of Use Pressure Stiffening

now press F1 on your keypad.
partial quote
"Pressure Stiffening effects are defined in Appendix D of B31.1 and B31.3."

note 7 of the Appendix D of B31.3

There you will find the answer to your question. Or perhaps you wanted to activate Bourdon's effect option #1 for the straight pipe? In that case you case do F1 in the same way.

cheers

Don't confuse pressure stiffening and structural response due to pressure.

Using F=KX, pressure stiffening changes K and structural response due to pressure sets F.

Some piping codes establish the K change for thin wall bends - that's the CAESAR II pressure stiffening switch.

Some engineeers wish to include the structural response due to pressure in their analysis. You can add this to your CAESAR II analysis by activating the "Bourdopn pressure effects". There are two flavors for this switch - 1) translation and 2) translation & bending.

Thaks a lot guys

Thaks a lot guys