ANALYSIS OF THE MECHANICAL BEHAVIOR OF TIMBER-CONCRETE COMPOSITE BEAMS THROUGH FEM MODEL

Felipi Pablo Damasceno Fernandes¹; Emerson Felipe Felix¹; Jorge Munaiar Neto¹; Rogério Carrazedo¹

¹ Universidade de São Paulo

doi:10.20906/CPS/CILAMCE2017-0714

Resumo

The civil constructions demands as well as technological advances provided the creation of new materials arrangements for the structural use, such as the combination of timber beams and reinforced concrete slabs through shear connectors, forming composites structures. The timber-concrete composite structures have a wide field of application, such as the construction of bridges and new buildings as well as the revitalization of old buildings. It is a competitive and flexible construction technique that, however, lacks a specific design method. Thus, this paper intends to analysis the mechanical behavior of timber-concrete composite beams using the Finite Element Method (FEM). For modelling the composites beams, it is applied the positional finite element method at the mesoscopic level, whose purpose is the nonlinear geometric analysis of bi-dimensional elastic structures made of composite materials. The results of the numerical model are compared with practical example and theoretical formulation which demonstrate the accuracy and applicability of the FEM model to simulate and analysis timber-concrete composite structures.

Palavras-chave: Timber-concrete beam; Composite ; Finite Element Method; Positional FEM