Please have a look at the model attached.
communities.bentley.com/.../R10.std
Beams 325 & 6860 should simulate a main beam supporting the secondary beam #361. Upon reviewing the moment diagram it can be deduced that STAAD is considering beam #361 is supporting rather than being supported resulting that beams 325 & 6860 are being simulated as a two span continuous beam rather than a single span simple beam.
I tried releasing START FY for beam 361 and tried releasing START MZ for 6860 and END MZ for 325 but with no hope. Any suggestions? Because otherwise the batch mode concrete design results are not reliable and doubts are also raised if I think of using RCDC (since RCDC performs design relying on STAAD analysis results).
