Results 121 to 130 of about 49,138 (166)

Investigation into FRP repaired RC columns

Composite Structures, 2003
Due to the aging of the infrastructures in the US, repair and rehabilitation of damaged steel reinforced concrete structures using fiber reinforced plastics (FRP) are increasingly becoming a topic of interest in the infrastructure community. In this study, a finite element analysis using ANSYS® was utilized to conduct a parametric analysis. Experiments
Guoqiang Li, Samuel Kidane, Su-Seng Pang, J.E Helms, Michael A Stubblefield   +4 more
openaire   +1 more source

Retrofit of RC square short columns

Engineering Structures, 2005
Abstract There exist many reinforced concrete short columns that are vulnerable to brittle shear failure as repeatedly demonstrated during recent severe seismic events. Due to the large scale of the problem, it is important to investigate the behaviour of short columns and approaches to their retrofit.
K. Galal, A. Arafa, A. Ghobarah
openaire   +1 more source

Instability of Longitudinal Bars in RC Columns

Journal of Structural Engineering, 1988
The collapse of reinforced concrete structural elements subjected to compression is linked to the instability of the reinforcement bars. This phenomenon may occur in the longitudinal region between two consecutive hoops, or may involve a number of hoops, deforming them through tension until they fail.
PAPIA M, RUSSO, Gaetano, ZINGONE G.
openaire   +2 more sources

Seismic performance of repaired RC columns

Magazine of Concrete Research, 2006
Steel or fibre-reinforced polymer (FRP) composite jackets have been utilised in retrofitting reinforced concrete (RC) bridge columns and have shown to be effective in enhancing seismic performance of the structures. However, to date, only a few researches have been conducted on the behavioural characteristics of the repaired RC columns using steel or ...
K.-S. Youm, H.-E. Lee, S. Choi
openaire   +1 more source

Bearing Capacity of Corroded RC Columns

2010 Third International Conference on Information and Computing, 2010
This paper reviews previous studies carried out to investigate the behavior of Corroded RC columns. Current tests used to assess the effects of reinforcement corrosion on the serviceability of RC Columns in the absence of a sustained load were first surmised.
openaire   +1 more source

Column–joint assembly in RC columns strengthened by steel caging

Proceedings of the Institution of Civil Engineers - Structures and Buildings, 2008
The strengthening of reinforced concrete columns by steel cages is one of various techniques available to increase ultimate column loads. Different researchers have shown the importance of the beam–column joint on the behaviour of columns strengthened by steel cages.
J. M. Adam, S. Ivorra, F. J. Pallares, E. Jiménez, P. A. Calderón   +4 more
openaire   +1 more source

Structural repair/strengthening of RC columns

Construction and Building Materials, 1995
Abstract The susceptibility of the majority of the existing building stock to structural damage largely depends on the quality of design, detailing and construction. In many cases, the engineer can extend the life span of a building structure by utilizing simple repair/strengthening techniques. The choice of the repair/strengthening technique becomes,
M. Frangou, K. Pilakoutas, S. Dritsos
openaire   +1 more source

Hybrid Techniques for RC Column Strengthening

SP-253: Fifth ACI/CANMET/IBRACON Int'l Conference on High-Performance Concrete Structures & Materials, 2008
Strengthening techniques of reinforced concrete structures have significantly changed in recent years. Such improvements happened mainly because of the development of new materials and their associated strengthening techniques. For example, polymeric composites of synthetic fibers (carbon, aramid, glass, etc.), high-strength concrete, and other high ...
openaire   +1 more source

Assessment of the seismic behaviour of RC columns

Engineering Structures, 2007
Current codes for earthquake resistant design of RC structures include several provisions that ensure satisfactory behaviour of columns. In order to check the efficiency of relevant code provisions, the behaviour exhibited by tested RC columns is assessed. For this purpose, experimental results on more than 450 RC columns were collected.
E. Vintzileou, A. Stathatos
openaire   +1 more source

Flexural strength of FRP-confined RC columns

2002
Experimental tests on cylindrical specimens have underlined the effectiveness of FRP-based confinement systems; tests conducted on cubic samples have also pointed out the reduction of the confinement effectiveness due to the high stress concentration in the corners; it has been observed that such effect becomes lower as the corner radius increases (i.e.
MANFREDI, GAETANO, M. PECCE, REALFONZO, ROBERTO, PROTA ANDREA   +3 more
openaire   +3 more sources