Estudo experimental de uma ligação viga-pilar de concreto pré-moldado parcialmente resistente a momento fletor / Experimental study of a partial moment resistant beam-to-column connection in precast concrete

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

In this research the behavior of a partial moment resistant beam-to-column connection in precast concrete subjected to negative and positive moments was studied. This connection has two inclined dowels fixed to the beam with steel plate, washer and nut and a concrete cap with longitudinal reinforced bars passing trough the column. In the experimental program two prototypes was made and subjected to an alternative cyclic e short duration load. Afterwards it was develop an analytical model and a numerical simulation to analyze the influence of the semi-rigid connection in a typical precast structure. The experimental results shown that the connection has a good capacity of transmitte the bending moments and has a ductile behave. Without any significative difference of cost and manufacture, the connection studied promoted a reduction on the column base bending moment (approximately 50%) when compared to pinned connection. When compared to similar structures but with a vertical dowel, the connection presents strength over 2.5 times and over 3 times the stiffens for positive bending moments

ASSUNTO(S)

concreto pré-moldado ligação viga-pilar ligação semi-rígida precast concrete ligação viga-pilar parcialmente resistente a momento fletor concrete structures semi-rigid connection beam-to-column connection estruturas de concreto partial moment resistance beam-to-column connection

ACESSO AO ARTIGO

Documentos Relacionados