Need Help

[Anonymous]

Hi guys, I'm in desperate need of  you help, I'm new at the use of RSA. Am doing my semester design project. It consisting of a RC office block and  Elasto-plastic design of  steel workshop structure. When i run analysis calculations on my steel structure model, i get this errors & warning messages: No convergence of nonlinear problem case number= critical load is probably exceeded, instability type 3, and  separate structures. I've gone through the model over and over, i have tried adjusting parameter to no avail

About the RC structure, i get this isolated spots/patches with very spikes in reinforcement area when i run slab reinforcement calculations, it makes no sense I also get failure in deflection.

I can't tell where i made mistakes with the models, please take a look at the models and advice, thank you.

[StefanoPasquini6790]

Hello,

My first question is: WHY YOU HAVE TO USE NON LINEAR ANALYSIS FOR THOSE SIMPLE STRUCTURES?????

Remember this words: EASY PROBLEM = EASY MODEL, if you add complexity to an easy model you have the only result to loose the control of the results and no other.

Think always to simplify your models!!!

try to do it, cheers

[Anonymous]

Thank you Stefano, the reason for using nonlinear analysis is because i want to do a plastic design for the steel structure, i will attempt to simplify the structure, thank you.