Non Linear Shear Effects on the Cyclic Behaviour of RC Hollow Piers

• Tipo: Capítulo ou Parte de Livro
• Data: 2014

Autores

Pedro Delgado (Autor) Outra; André Monteiro (Autor) Outra; António Arêde (Autor) FEUP; Nelson Vila Pouca (Autor) FEUP; Aníbal Costa (Autor) Outra; Raimundo Delgado (Autor) FEUP

Livro

Título: Materials with Complex Behavior II, Advanced Structured Materials

Páginas: 537-547

ISBN: 978-3-642-22699-1

ISBN Eletrónico: 978-3-642-22700-4

Indexação

Scopus - 2 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia civil > Engenharia estrutural

Outras Informações

ID Authenticus: P-00H-13N

DOI: 10.1007/978-3-642-22700-4_33

Abstract (EN): Reinforced concrete (RC) hollow section piers have been the subject of several studies in the recent past, from which one important drawn conclusion is the significant influence of shear effects on these piers behaviour, particularly under cyclic loading. In that framework, tests were carried out at Laboratory of Earthquake and Structural Engineering (LESE) from Faculty of Engineering of University of Porto (FEUP) on several reduced scale (1:4) RC hollow section bridge piers under lateral cyclic loading with constant axial force reported by Delgado (Bull Earthquake Eng 7:377¿389, 2009). This work aims at presenting the numerical simulations performed for some of the referred piers in order to better understand phenomena associated with its cyclic behaviour, as observed in the experimental campaign. The numerical strategy was based on refined 3D Finite Element Mesh (FEM) discretization using a two-scalar variable damage model for the concrete constitutive law and a suitable cyclic behaviour law for steel bars represented by uniaxial elements. As is well known, the shear effects are complex phenomena involving the global behaviour of the structural elements and where the non linear effects have a crucial role. In this chapter a detailed modelling was used allowing for realistic simulations of the non linear behaviour, which was found particularly suitable when significant shear effects are involved. The bond between the bars and the embedding concrete, by incorporating a bond stress¿slip behaviour law in the numerical calculations is considered, an effect particularly important when thin plain steel bars are considered, as is the case of the tested piers. The adopted formulation is similar to the well known Eligehausen proposals although with slightly modified cyclic behaviour parameters.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10