Recent content by farzad1366

Dear all I'm analyzing a structure with 7 records and getting the top displacement, how could i show the differences with fft curves?

thread799-183142 Dear all I did the same way which is described in the upper thread but i get this error: Invalid float value. what should i do now.

Dear all how i could reaction force and moment in partitions duo to response spectrum analysis because everything i choose has a 0 magnitude.

Dear all does anyone know how to define gravity load(weight)before a dynamic analysis in shell structures? i know how to do it for continuum elements but not for shells regards.

Dear All could anyone tell me how to verify a topic if there is differences in dimention?

Dear all I would like to connect to different shells in a section cut, How it could be possible for me to connect them and have a one shell?

Dear all if we use fiber element instead of plastic hinges and we have a pushover analysis, how show we get Vs(first yeild)?

as in the aci-307 4.2.3.2 if shells outside diameter at h/3 is less than 1.6 outside diameter in top we should use one kind of formula, so if it is not what should we do?

you could use fiber for your elements.

show forces/stresses - shells - shell stresses and then get your desire component.

Could sap2000 design shells in layered form? layered of concrete and rebars in nonlinear position.

i made the conical shell by rotating a line around z axis, so the point are in their correct position, then i made a join pattern and assigned cone's generator formula to the points. but it is confusing for me when i want to do something about the change of the thickness along z axis, i should...

i do not have the documentation. would it be possible for you to upload the example somewhere for me?

Dear all I would like to define a spectrum from a specification and run a response spectrum analysis, how i could do this?

Dear all i've made a conical shell in sap2000 and i can't make groups for each level, i select any point or element at each level or both but when i make a group with these it is not useful and i can't use them for section group because there would be no output in these sections? what should i do?