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184.108.40.206 Design membrane forces
Design membrane forces
The principal membrane forces nsI,+z and nsII,+z are now determined from the membrane forces nsx,+z, nsy,+z, and nxy,+z that replace the moments mx, my, mxy and the axial forces nx, ny, nxy of the linear plate analysis.
With the final design membrane forces nsend,+z,φ1 and nsend,+z,φ2, the program determines the required reinforcement areas of a two-directional reinforcement mesh for the surface side.
The reinforcement mesh is stiffened by a concrete compression strut.
The magnitude of the stiffening strut force nsend,+z,strut is specified under the final design membrane forces.
It amounts to
Analogously, the design membrane forces and stiffening force of the concrete compression strut are determined for the top surface of the plate.