PDelta Analysis Control






Enter the load cases and the control parameters for iterations used in the PDelta analysis of a structure. In order to consider the PDelta effects in the processes of general static and dynamic analyses, we need to define the load condition to formulate the geometric stiffness matrix. We need to also specify the convergence requirements. midas Civil permits PDelta analysis for only the structures consisted of beam and truss elements. Note








From the Main Menu select Analysis > Analysis Control > PDelta . 





To enter a new or additional load case Enter the Load Case and Scale Factor; then click .
To modify the scale factor for a previously entered load case Select the load case, modify the Scale Factor and click .
To delete a previously entered load case Select the load case to be deleted from the load case list at the bottom of the dialog box and click .
PDelta Analysis and Buckling Analysis may not be used simultaneously. The use of PDelta Analysis is limited to truss and beam elements. To delete all the entered data, click . 



Revision of Civil 2015 (v1.1) 

