A three fields mixed finite element is proposed for the non-linear analysis of composite beams with weak shear connection. The formulation is based on the Hu-Washizu functional and considers the non-linear behaviour of materials and deformable shear connectors. Numerical applications are performed using as working example a steel-concrete two span continuous beam that is of practical interest in structural engineering and a difficult test for composite beam elements. The results are discussed and comparisons are made between the established mixed element and displacement based elements adopted by the authors in previous works.

Non-linear analysis of continuous composite beams by a mixed approach

DALL'ASTA, Andrea;ZONA, Alessandro
2002-01-01

Abstract

A three fields mixed finite element is proposed for the non-linear analysis of composite beams with weak shear connection. The formulation is based on the Hu-Washizu functional and considers the non-linear behaviour of materials and deformable shear connectors. Numerical applications are performed using as working example a steel-concrete two span continuous beam that is of practical interest in structural engineering and a difficult test for composite beam elements. The results are discussed and comparisons are made between the established mixed element and displacement based elements adopted by the authors in previous works.
2002
0948749830
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11581/113336
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