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Paper ecce-1997-199:
Accuracy of elastic bending moments for the design of r.c. floorslabs calculated with finite-element-software

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Schaper G, Schole H, Trippe K

Accuracy of elastic bending moments for the design of r.c. floorslabs calculated with finite-element-software

Abstract: Design moments of conventional floorslabs are more and more analysed with finite element programs. To get moments of sufficient accuracy for the design in practice, some principles are to consider concerning the finite element mesh-layout, especially in areas of strongly increasing moments. The influence of element size as well as square or distorted quadrilateral shape on the accuracy of the calculated moments in r.c. floorslabs is evaluated by two typical examples, using the finite-element-programs CS-FEBA [4] and MicroFe [6] The moments analysed by the finite element method are compared to linear elastic solutions, given in tables [ l ] and [ 21.

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