SAP 2000 plastic joint

[hakanyalciner]

Hello, I wanted to apply push analysis for a simple framework imported from IdeCAD to SAP 2000. But I came across a warning in the assignment of plastic joints. In the form that the appropriate material or section is not available. Even though the material and section properties defined in ideCAD and included in the SAP were assigned to the relevant reinforced concrete elements, the same problem persisted. As a solution, redefining materials and sections and reassigning them solved the solution. However, in this case, the loads previously assigned from IDECAD have changed. In addition, when imported from ideCAD, entering the section properties in SAP, the reinforcement properties tab is not allowed to be opened. Thank you for the help of friends who have experience on the subject, Hakan YALÇINER

 

[yasinarslan]

Hello, in order to define a plastic joint in Sap2000, the section element you have chosen must have the "Reinforced Concrete Design" option. The option required for the design in Sap2000 is only available for rectangular and circular elements in the "concrete" menu. In the model exported from İdecad static, all kinds of sections are assigned as general section from the "other" menu, so there are no reinforced concrete design parameters. For the definition of plastic joint, the reinforcement arrangement of the element must be determined. If you want to make pushover analysis on the model exported from İdecad Statik; First, you must define the section with the reinforced concrete design option (from the concrete menu - it must be one of the rectangular or circular section types), you must assign the section you defined to the elements without deleting the Element (in order not to delete the load and other information). You can define your plastic hinges manually if the reinforcement information of your elements is available. If you want it to be assigned automatically, you can have it assigned automatically by selecting the elements multiple times after you design the reinforced concrete according to the foreign regulations in Sap2000.

 

[hakanyalciner]

Dear Mr. Yasin, thank you for the points you mentioned, I had to go the same way as a solution. I hope a more practical solution can be brought in the next updates. Since I am not one to use automatic plastic hinge properties, and for practical purposes, it will be a very important development to assign plastic joint properties from ideCAD as moment-rotation by calculating from moment-curvature. By doing this, the need for many non-linear analyzes will be met on a large scale. Thank you for spending your time and helping, I wish you good luck Hakan YALCINER Eastern Mediterranean University