Full-scale testing of a parking structure column retrofitted with carbon fiber reinforced composites

Ma, Rui; Xiao, Yan; Li, K N

doi:10.1016/s0950-0618(00)00008-8

Cited by 55 publications

(18 citation statements)

References 3 publications

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“…FRP retrofitting of circular or rectangular columns with inadequate lap-splices of ribbed (deformed) bars with straight ends has been studied by Chang et al [2001], Elnabelsy and Saatcioglu [2004], Harries et al [2003], Haroun et al [2001], Laplace et al [2005], Ma et al [1997Ma et al [ , 2000, Restrepo, et al [1998], , , Saatcioglu and Elnabelsy [2001], Schlick and Brena [2004], and Xiao and Ma [1997].…”

mentioning

confidence: 99%

Seismic Retrofitting of Columns with Lap Spliced Smooth Bars Through FRP or Concrete Jackets

Bousias

Spathis

Fardis

2007

Journal of Earthquake Engineering

103

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The effectiveness of RC jacketing or FRP wrapping for seismic retrofitting of rectangular columns having smooth (plain) bars with 180° hooks lap-spliced at floor level is experimentally investigated. The relatively low deformation capacity and energy dissipation of five unretrofitted columns is found not to depend on lap length, if lapping is not less than 15 bar-diameters. Six columns cyclically tested up to ultimate deformation after RC concrete jacketing demonstrate force and deformation capacity and energy dissipation sufficient for earthquake resistance, regardless of the presence or length of lap splicing in the original column. Another ten columns cyclically tested to ultimate deformation after wrapping of the plastic hinge region with CFRP show that FRP wrapping of the splice region is more effective than concrete jackets for enhancement of the deformation and energy dissipation capacity of old-type columns with smooth bars lap-spliced at floor level, provided that wrapping extends over the member length sufficiently to preclude plastic hinging and early member failure outside the FRP-wrapped length of the column.

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mentioning

confidence: 99%

Seismic Retrofitting of Columns with Lap Spliced Smooth Bars Through FRP or Concrete Jackets

Bousias

Spathis

Fardis

2007

Journal of Earthquake Engineering

103

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“…A large number of studies have been conducted to assess the impact of CFRP strengthening on the general behavior and failure modes of the strengthened RC columns. Ma et al [24] reported that deficient RC columns retrofitted with external CFRP jacketing exhibited stable flexural response with improved ductility and energy dissipation capacity by preventing brittle shear failure. Similarly, Ye et al [25] found that shear strength of the RC column with inadequate transverse reinforcement can be improved with the CFRP sheets.…”

Section: Cfrp Strengtheningmentioning

confidence: 99%

Strengthening and Repair of Reinforced Concrete Columns by Jacketing: State-of-the-Art Review

et al. 2019

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Sustainability necessitates the protection of infrastructure from any kind of deterioration over the life cycle of the asset. Deterioration in the capacity of reinforced concrete (RC) infrastructure (e.g., bridges, buildings, etc.) may result from localised damage sustained during extreme loading scenarios, such as earthquakes, hurricanes or tsunamis. In addition, factors such as the corrosion of rebars or ageing may also deteriorate or degrade the capacity of an RC column, thereby necessitating immediate strengthening to either extend or ensure its design life is not limited. The aim of this paper is to provide a state-of-the-art review of various strengthening and repair methods for RC columns proposed by different researchers in the last two decades. The scope of this review paper is limited to jacketing techniques for strengthening and/or repairing both normal- and high-strength RC columns. The paper also identifies potential research gaps and outlines the future direction of research into the strengthening and repair of RC columns.

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“…Cantilever columns have been extensively tested in the past (Priestley et al 1992, Saadatmanesh et al 1996, Saadatmanesh et al 1997b, Saadatmanesh et al 1997a, Seible et al 1997, Xiao and Ma 1997, Haroun et al 1999, Ma and Xiao 1999, Chang et al 2000, Ma et al 2000, Chang et al 2001, Saatcioglu and Elnabelsy 2001, Haroun et al 2003, Elnabelsy and Saatcioglu 2004, Sause et al 2004, Schlick and Breña 2004, Yalçin and Kaya 2004, Bousias et al 2006, Bousias et al 2007, Breña and Schlick 2007, Youm et al 2007, Chung et al 2008, Eshghi and Zanjanizadeh 2008, Harajli 2008, ElGawady et al 2010, Bournas and Triantafillou 2011, Kim et al 2011. Column specimens are usually cast on a stiff concrete block simulating the structure's foundation, as shown in Figure 1.…”

Section: Capacity-ductility Approach: Tests On Cantilever Columnsmentioning

confidence: 99%

Fibre-reinforced polymer strengthening of substandard lap-spliced reinforced concrete members: A comprehensive survey

Garcia

Guadagnini

Pilakoutas

et al. 2016

Advances in Structural Engineering

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Externally bonded Fibre Reinforced Polymer (FRP) confinement is extensively used to improve the bond strength of substandard lap spliced steel bars embedded in reinforced concrete (RC) components. However, the test results from bond tests on such bond-deficient components are not fully conclusive, which is reflected in the few design guidelines available for FRP strengthening. For the first time, this article presents a comprehensive survey on FRP strengthening of substandard lap-spliced RC members, with emphasis on the adopted experimental methodologies and analytical approaches developed to assess the effectiveness of FRP in controlling bond-splitting failures. The main findings and shortcomings of previous investigations are critically discussed and further research needs are identified. This review contributes towards the harmonisation of testing procedures so as to facilitate the development of more accurate predictive models, thus leading to more cost-effective strengthening interventions.

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Full-scale testing of a parking structure column retrofitted with carbon fiber reinforced composites

Cited by 55 publications

References 3 publications

Seismic Retrofitting of Columns with Lap Spliced Smooth Bars Through FRP or Concrete Jackets

Seismic Retrofitting of Columns with Lap Spliced Smooth Bars Through FRP or Concrete Jackets

Strengthening and Repair of Reinforced Concrete Columns by Jacketing: State-of-the-Art Review

Fibre-reinforced polymer strengthening of substandard lap-spliced reinforced concrete members: A comprehensive survey

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