The strength assessment of existing reinforced concrete structures is challenging when deterioration and detailing deficiencies are present. anchorage the internal steel reinforcement can be critical under particular confinement conditions external pressure, cover transverse reinforcement. interaction between different contributions their effects on bond were investigated with a novel experimen...

In this paper, moment-curvature behavior and ductility of prestressed concrete members based on nonlinear analysis is investigated. Influence of various design parameters on ductility of flexural members is determined according to appropriate materials models for stress-strain curves of concrete, prestressing steel and conventional reinforcements. Parameters studied include reinforcing index (ω...

The results of a numerical modeling program to evaluate the behavior of hollow concrete blocks under uniaxial compression are addressed. It has been considered appropriate to use interface elements to represent the confinement effect at the top and bottom of blocks. The response of the numerical simulations is compared with experimental data of masonry units. Laboratory tests were carried out u...

Self Compacting Concrete offers many advantages over conventional concrete. It is mainly used when a great fluidity is required (For example sections with high percentage of reinforcement). Self Compacting Concrete has excellent applicability for elements with complicated shapes and congested reinforcement. An experimental study was made on cylinders and specimens with square sections confined ...

ABSTRACT The majority of concrete buildings in the regions of high seismicity in Iran do not meet seismic code requirement, and many of these buildings are vulnerable in severe earthquakes. Concerns for seismic strengthening of concrete grew considerably in the recent years, and has been accelerated since the Bam earthquake 2004. This paper presents the results of experimental and analytical st...