STAAD PRO.CE DIFFERENT RESULTS IN STATIC CHECK

Yes, this is happening due to dummy members. More specifically, because some dummy members are divided into segments, which are not connected to other reasonably stiff elements. You need to merge those segmented dummy members into a single length members as shown below:

Thank you Modestas,also what size of dummy member should be adopted?

The size does not really matter as the material is already with 0 density and low E value.

Iam attaching this model please help me to understand why these dummy beams have higher moment? and what should be done to lower their moment?

STAAD FILE

WING C ZNZ H.STD

Do you mean beam only1432 or some other beams as well? The moments are higher compared to what? What moment would you expect?

Yes beam 1432 but  there some dummy beam also have higher moment,i have already know what causes that,i used to create these beams by highlighting nodes then i used a command of create beam along x and z,unfortunately some nodes were skipped instead of having beam segemented on each node,the beam was created from first node to last node bypassing the intermediate node.

When this beam is broken to segments resembling the slab node,the moment are very lower approximately 1.2knm.

I think this feature of creating beam has some problem

Yes beam 1432 but  there some dummy beam also have higher moment,i have already know what causes that,i used to create these beams by highlighting nodes then i used a command of create beam along x and z,unfortunately some nodes were skipped instead of having beam segemented on each node,the beam was created from first node to last node bypassing the intermediate node.

When this beam is broken to segments resembling the slab node,the moment are very lower approximately 1.2knm.

I think this feature of creating beam has some problem

If the beam is divided into the segments, the forces are transferred to the plate through the common nodes. In this cases, the plate will be having the higher moments and beam will be having lower moments. If the beam is not segmented, then all force is transferred through its start and end to the beam to which it is connected and no load is taken over by the plates as they do not share common nodes with that beam.

1. Yes but for my case this edge of the slab which does not have beam is carrying a wall then if this is the case i believe the wall load will be carried by slab,then dummy beam needs to be in segments

Yes.

Can we store the material property and density for dummy beam or we to make every time ?

Yes, you can do this by adding the custom material directly into the configuration file. I have created a following Wiki which explains the process: How to add a custom material permanently? - RAM | STAAD | ADINA Wiki - RAM | STAAD | ADINA - Bentley Communities