Results 261 to 270 of about 435,551 (310)

Fire resistance of RC and FRP-confined RC columns

Magazine of Concrete Research, 2006
The retrofit of columns by fibre-reinforced polymer (FRP) confinement has become a popular technique over the past decade but when this technique is adopted to strengthen reinforced concrete (RC) columns in buildings, the fire resistance of the strengthened column is often a serious design concern.
L. H. Han, Y. Q. Zheng, J. G. Teng
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Short Rectangular RC Columns Under Bidirectional Loadings

Journal of Structural Engineering, 1984
Short columns in reinforced concrete buildings have been shown to perform poorly under earthquake loads. This study examines the strength of short columns with square or rectangular sections under loadings in directions corresponding to the principal axes of the section, as well as loadings in diagonal directions.
H. Umehara, J.O. Jirsa
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Strength Evaluation of Deteriorated RC Bridge Columns

Journal of Bridge Engineering, 2008
Condition-rating methods followed by load rating calculations are used for evaluating existing bridges in the United States. Ratings are assessed visually based on engineering expertise and experience, and in some cases supplemented by nondestructive tests. Good understanding of the effects of deterioration on the structural performance leads to better
Aboutaha, Riyad S., Tapan, Mücip
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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
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Retrofitting of fire damaged RC columns

Proceedings of the 11th International Conference on Structures in Fire (SiF2020), 2020
The post fire (residual) capacity of Reinforced Columns (RC) members descends drastically due to degradation of concrete strength, permanent deformation and damage (spalling or buckling of rebar’s) in the column. The restoration of such members is essential immediately after the fire event in case of important structures and /or where some part of the ...
Hemanth Kumar Chinthapalli, M. Chellapandian, Anil Agarwal, Suriya Prakash   +3 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
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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
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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
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Phenomenological hysteretic model for corroded RC columns

Engineering Structures, 2020
Abstract A phenomenological hysteretic model is developed for corroded RC columns in this study. To this end, the test data of 77 corroded rectangular RC columns and 26 uncorroded ones under repeated cyclic loads are collected to establish a database.
Kuang-Yu Dai, Xiao-Hui Yu, Da-Gang Lu
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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.
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