RESERVA DE RESISTENCIA DE EDIFICIOS PORTICADOS DE CONCRETO ARMADO DISEÑADOS CONFORME AL ACI-318/IBC-2006

Experimental analysis of reinforced concrete columns strengthened with self-compacting concrete and connectors Análise experimental de pilares de concreto armado reforçados com concreto auto-adensável e conectores

© 2012 IBRACON There are many problems involving cases of destruction of buildings and other structures. The columns can deteriorate for several reasons such as the evolution and changing habits of the loads. The experimental phase of this work was based on a test involving nine reinforced concrete columns under combined bending and axial compression, at an initial eccentricity of 60 mm. Two co...

Skew decks in reinforced concrete bridges Lajes esconsas em pontes de concreto armado

Resumo This research investigates reinforced concrete plates and shells with skew reinforcement whose directions are not aligned with the principal internal forces. Two normal forces, one tangential force, two bending moments, and one twisting moment are defined in the plane of the element. The analysis includes two shear forces in the transverse direction. The membrane and flexural forces are ...

Escala de Reserva Cognitiva y envejecimiento

The construct of cognitive reserve attempts to explain why some individuals with brain impairment, and some people during normal ageing, can solve cognitive tasks better than expected. This study aimed to estimate cognitive reserve in a healthy sample of people aged 65 years and over, with special attention to its influence on cognitive performance. For this purpose, it used the Cognitive Reser...

Vaccination antirougeoleuse: Etude de l'immunité humorale chez les enfants Vaccinés de la région de Tunis

Parasites du sang de divers animaux de la region de Tehran