Análise da base de pilares pré-moldados na ligação com cálice de fundação / Analysis of the precast concrete column base in the connection socket

AUTOR(ES)

Eimair Bottega Ebeling

DATA DE PUBLICAÇÃO

2006

RESUMO

The study presents the analysis of precast concrete column base in the connection socket. This research follows previous studies on this connection type. The research aim to fill out the lack of information about column base in the embedded length, because almost do not exist recommendations about this subject. An experimental investigation was developed with the construction of two models, which connection sockets were reused from previous researches. The models have smooth contact interface with different embedded lengths and the axial load with great eccentricity was applied in the models. Numeric simulations are presented by using the Finite Element Method adopting non-linear physical, geometric, and contact. A comparative analysis was done between the tests and numeric models that were observed the displacements, longitudinal and transversal reinforcement strain, cracking, and stress flow. The results show that the ruin of the models occurred for large strain in longitudinal tensioned reinforcement located out of embedded length. The transversal reinforcement presents little strain. Recommendations are made for anchorage of longitudinal reinforcement and at the end of the research an analytical model for column base behavior is suggested for connecting foundation by socket

ASSUNTO(S)

base de pilares simulação numérica concreto pré-moldado cálice de fundação connection ligação columns base investigação experimental precast concrete experimental investigation foundation by socket numeric simulation

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