The diaphragm constraint has the function of a rigid membrane, which acts solely in the previously selected plane. Deformations acting out of the plane are not affected by this constraint type. This restriction provides a computationally efficient way to model soils, plates, or structures with very high stiffness in the plane.
Nodal Constraint Type Diaphragm
In the latest version of RFEM, nodal constraints were implemented. Therefore, you can now connect the nodes in an ideal way. The diaphragm type represents the option to couple nodes in a plane. This option is available not only for the global coordinate system, but also for user-defined coordinate systems.
Author
Mr. Frenzel is responsible for developing products for dynamic analysis. He also provides technical support for customers of Dlubal Software.
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