Main Model : Base Model we are adding New Model to This Base Model
Sub Model : Model to Merge with Main Model
Prepare Sub Model for Merge
Adjust Nodes Coordinate as positioning with respect to Main Model, This include Moving and Rotation of Nodes
Nodes and Beam Renumbering such a way that Node and Element ID Don't Conflict with main Model
Material ID Change , Keep It As if you want to use same material for both Model, You can Keep Separate ID if You Might need to Change Material Property in Future
Section ID Renumbering So that ID Don't Conflict with Main Model
For Loads Use Separate Names or Use Prefix with Load Name Like Span1_DeadLoad, If You Keep Same Load Case Name as Main Model Midas will Merge Both Load which is Not advisable, If You Need Combine Loads For Results Use Load Combination but Keep Loads for each Span Separate so You can Modify That Load later on if necessary
Change Name of Floor Load if Already Exist
For Load Combination Same As Loads Use Prefix
Export Midas Model to MCT Command File
Merge Using MCT Commands
Open Main Model
Open MCT Command Shell Ctrl +F12
Run Commands For Nodes and Beams from Sub Model MCT Command File and Check Alignment
Add Material and Section Property
Add Supports
Add Groups
Add Load Cases, Remove if Load Case Name Already Exist