Hello Guys,I am calculating the deflection and stress of simply supported beam...with the help of manual calculation formulas.To be sure I checked the same condition with the help of staad pro too.My deflection and stress matches with staad pro.But when i compare my bending stress with yeild stress of steel..i determined a ratio.Which was different from staad pro determined utilization ratio with the constant factor for different loading condition.I dont know how staad pro calculates utilization ratio....can u guys provide formula for calculating utilization ratio in manual calculation which matches to staad pro utilization ratio?
Can you please upload the staad file and your hand calculation for investigation?
Also please refer help file where you will find a lot of verification example. Please have a look and let us know the outcome.
C:\Program Files\Bentley\Engineering\STAAD.Pro CONNECT Edition\Help\GUID-8C62E6A3-4470-4E9E-92DB-4878EB27DF9D.html