can you help
i have attached both a paint file to decribe my problem and the autosad file to let u have a look
please can u help
I guess I'm not understanding what is so complicated about this problem. If you need elastic releases at those joints, just use member end release and specify an elastic stiffness in the release for that direction.
The beam should be modeled across both supports and extending out. It's just one beam. Apply support conditions and loads then analyze.
Where are you getting hung up?
Owner Marsh API
thank u !
i understand this thank you
is there anyway i can design the node with rotational stiffness ?!
i want to make the frame less rigid, so i want more deflection at node 3.
basically the first desgin i want is to be completely rigid so gives litlle deflection . then the second desgin to be semi rigid/ pinned, so elastic at the two joints. do u understand . will i have to increase the stiffness ? or do i have to degin the acdtual nodes ? as what u have shown me is the members .
but if i model the nodes how do i connect them up with each other as i get nodes not connected to the frame ?!
The release definition that Rafal has shown above is introducing rotational stiffness in the connection between the vertical members and the horizontal members. If you want to first design as rigid, do not add member releases at the ends of the vertical member. When you are ready to design for semi-rigid, you add the release with elastic stiffness as shown to both ends of the vertical member.
does that help?
Owner Marsh API
yes this helps thanks ! just wandering how would i make it less rigid ? increase the stifness or decrease ?! i want the structure to fail more at the end of the cantilever but changinging to elastic doesnt do this when i feel it should as it is less rigid ?!