STAAD.Pro Help

AD.2007-05.2.1 RC Designer Member and Envelope Import

The ability to create physical members in STAAD.Pro has been introduced since the original implementation of the RC Designer. Previously these members did not get carried through into the RC Designer, thus requiring the extra step of re-creating these members, and possible confusion if the same member numbers were not used.

Similarly, load case/combination envelopes were not carried through into the RC Designer, requiring extra care in identifying which load cases were being considered when examining the output.

The physical member definitions are now passed through to the RC Designer along with the other structural data from STAAD.Pro. Envelope definitions are also carried through and examined to see if they contain any dynamic loading for which it may be inappropriate to use the analysis results directly.

Generally, this implementation is invisible to the user. Physical member assignments made in the STAAD.Pro Modeling mode will be carried over to the RC Designer (Concrete Design mode). If existing designs are re-examined, the user may be warned if member numbers or constitution (in terms of beam elements included) differ between the STAAD.Pro Modeling mode and the RC Designer definitions, and the option is given to delete the RC Designer members with their results. For envelopes, the user is prompted if the envelope numbers or constitution differ between RC Designer and STAAD.Pro Modeling mode.

Additionally, a warning may be presented to the user is any envelope incorporates a dynamic load case. This is because the dynamic load cases in STAAD.Pro only produce positive values for moments and forces, even though it is understood that the loading actually reverses. Concrete design based on an envelope of positive forces only would be seriously under-reinforced.