About arch beam buckling coefficient(K)

[7.85]

Dear friends,

Do you have any idea about buckling coefficient (K) of arch beam and what is the unbreaced lenght of it?

Thank you

7.85

[spyridoula]

It depends on the end restraints and the ratio f/l of the beam

[parhyang]

any reffrences for exact values for these problems? i not found yet except for non prismatic column and beam.

i'll use standard FE software where's capable to perform elastic buckling anlysis, reduced stiffness to account residual stress, make new geometry due to notional load perpendicular to force being consider in buckling analysis to represent geometric inperfection in pabricated and construction stage.

[7.85]

It depends on the end restraints and the ratio f/l of the beam

Two hings,the beam has uniform I section and f/l=0.35
What is the unbaced lenght of this beam?Total or half of the curved lenght?

[seb3k]

I aswered your question here:

Code:

***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************

[spyridoula]

The coefficient is B=1,16
This means buckling length B*Lo, where Lo half the curved length