Seismic behavior of preloaded rectangular RC columns strengthened with precambered steel plates under high axial load ratios

Wang, L.; Su, R.K.L.; Cheng, Bei; Li, L.Z.; Wan, Li; Shan, Zhiwei

doi:10.1016/j.engstruct.2017.09.048

Cited by 37 publications

(14 citation statements)

References 20 publications

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“…Wang and Su [52][53][54][55][56][57][58] developed the post-compressed steel plates method to repair the firedamaged columns. Seven RC columns were subjected to 4-hour fire exposure.…”

Section: Steel Wrapping Methodsmentioning

confidence: 99%

Repair of Fire-Damaged Reinforced Concrete Members with Axial Load: A Review

Zhou

Wang

2019

Sustainability

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It is common knowledge that structural fires have led to a great loss of buildings and damage to property in the past two decades. Therefore, there is a growing need to provide approaches for post-fire repair of structural members to enhance their structural safety. This paper presents a state-of-the-art review on the repair of fire-damaged reinforced concrete (RC) members with axial load. The investigations into the effects of loading method, physical dimension and bonding behavior on the residual strength of members are presented. In the meantime, the available experimental investigations on the performance of fire-damaged RC members with axial load repaired with concrete jacketing, steel jacketing and fiber-reinforced polymer (FRP) jacketing are summarized. Moreover, models for predicting the residual strength of fire- damaged columns are reviewed.

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“…Wang and Su [52][53][54][55][56][57][58] developed the post-compressed steel plates method to repair the firedamaged columns. Seven RC columns were subjected to 4-hour fire exposure.…”

Section: Steel Wrapping Methodsmentioning

confidence: 99%

Repair of Fire-Damaged Reinforced Concrete Members with Axial Load: A Review

Zhou

Wang

2019

Sustainability

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“…However, the initial stiffness was restored to 80% of the stiffness of the as-built columns. More recently, Wang et al [22] proposed an innovative strengthening method in which rectangular RC columns supporting high axial load ratios (i.e., preloaded) were strengthened with post compressed steel plates. The primary purpose of this method was to ensure that the column does not collapse in a severe earthquake and its axial load carrying capacity remains intact even after severe damage.…”

Section: Steel Jacketingmentioning

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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“…This method was also introduced to upgrade masonry structures by many researchers (El-Diasity et al, 2015;Elgawady et al, 2006;Holberg & Hamilton, 2012;Mosallam & Banerjee, 2011;Triantafillou, 1998;Turek et al, 2007) and proved to be an effective technique in terms of enhancing the lateral strength and stiffness. The bolted sideplating technique (Jiang et al, 2018;Li et al, 2018;Wang et al, 2017), as a feasible way to enhance both the shear and flexural capacities of RC members, may also have great potential in retrofitting masonry structures. Nevertheless, steel strips (Farooq, 2002;Rai, 1996) were found to be vulnerable to buckling in strengthening masonry walls.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on seismic performance of strengthening masonry wall using hybrid fiber-reinforced reactive powder concrete

Wang

Xie

et al. 2021

Earthquake Spectra

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An experimental study was conducted to investigate the seismic performance of masonry walls strengthened using hybrid fiber-reinforced reactive powder concrete (HyFRRPC) as a coating. The proposed reinforcement technique was employed to improve the overall strength and structural integrity of the confined masonry wall. In order to guarantee the composite action between the masonry substrate and the coating material, material tests were conducted to achieve an optimal mixture for the HyFRRPC. Then, six full-scaled confined masonry specimens strengthened by HyFRRPCs with varied strengthening configurations were tested under in-plane quasi-static horizontal loading. The test and analysis results indicated that the proposed HyFRRPC-strengthening technique can effectively improve the lateral carrying capacity, displacement ductility, and energy dissipation capacity of masonry walls, and provide an optimal reinforcement. Finally, a simplified analytical model was also proposed for practical application.

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Seismic behavior of preloaded rectangular RC columns strengthened with precambered steel plates under high axial load ratios

Cited by 37 publications

References 20 publications

Repair of Fire-Damaged Reinforced Concrete Members with Axial Load: A Review

Repair of Fire-Damaged Reinforced Concrete Members with Axial Load: A Review

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

Experimental study on seismic performance of strengthening masonry wall using hybrid fiber-reinforced reactive powder concrete

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