Seismic Assessment and Retrofitting of Existing Road Bridges: State of the Art Review

Skokandić, Dominik; Vlašić, Anđelko; Marić, Marija Kušter; Srbić, Mladen; Ivanković, Ana Mandić

doi:10.3390/ma15072523

Cited by 8 publications

(3 citation statements)

References 83 publications

(90 reference statements)

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“…Due to the special complexity of the bridge structure, there is no common method of BRB in the bridge, and it is necessary to study separately for different bridges. The seismic capacity of the bridge can be calculated mainly with the methods of the response spectrum, time history analysis, and pushover analysis [ 77 ]. Through the analysis results, the weak parts of the bridge are obtained and reinforced by BRB.…”

Section: Study On Seismic Performances Of Brbsmentioning

confidence: 99%

Research on the Application of BRBs in Seismic Resistance of Bridge

Zou

Zhao

et al. 2023

Materials

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The beneficial effects of buckling-restrained braces (BRBs) in bridge engineering have attracted widespread attention in recent years. Firstly, this paper introduces the basic working mechanism of traditional BRBs, and the new forms and new materials of BRBs are also being studied. Secondly, the responses and performances of BRBs applied to (piers) girder bridges, cable-stayed bridges, and arch bridges are systematically studied. Besides, studies on the connection nodes between BRBs and structures have been paid more and more attention. By comparing and analyzing the damping effect of BRBs alone and that of BRBs with other seismic isolation devices on a bridge, it is determined that a reasonable BRB layout can effectively improve the seismic performance of the bridge with better energy dissipation capacity and load-carrying capacity than other components, but they are less used in practice and do not have mature specifications to be applied on different bridges. Finally, the following trends in BRB development in bridge research are discussed: the diversity of BRB forms, applications of BRB, node connection security, and combined damping measures. These areas should be explored through in-depth theoretical and experimental research.

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Section: Study On Seismic Performances Of Brbsmentioning

confidence: 99%

Research on the Application of BRBs in Seismic Resistance of Bridge

Zou

Zhao

et al. 2023

Materials

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“…Terefore, their repair and retroftting are sensitive and important tasks. In order to improve the seismic performance of infrastructures and increase their carrying capacity, many countries are strengthening and upgrading old bridges [4][5][6]. All these issues make the engineers do diferent research in the strengthening feld.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Feasibility of Using Concrete Containing Waste Paper Sludge Ash and Pozzolanic Materials to Repair Bridge Stub Columns

Delaram

Mohammadi

Adlparvar

2023

Advances in Civil Engineering

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In most cases, the bridge columns are underwater, and there is a risk of corrosion. The columns of marine structures and docks also include such problems. In addition to the problem of environmental hazards, the bridge columns may fail due to design problems or increasing needs. The use of waterproof concrete materials as a jacket can have a role in increasing the life of bridges. Studies in recent years show that some waste from paper industries can be used in the construction industry. In the present study, several concrete stub columns were built as bridge columns and retrofitted with concrete jackets containing waste paper sludge ash, silica nanoparticles, aluminium oxide nanoparticles, and acrylic resin. The variables included the geometric shape of the column (square and circular) and the type of nanoparticles used in the jackets (silica and aluminium oxide nanoparticles), and the curing environment of the columns (normal and sulfate environments). The combined use of nanomaterials and waste paper ash is the most important novelty of the present study. The axial loading test was performed on the columns, and the load-deflection diagrams were obtained. The ductility, stiffness, load-bearing capacity, and crack distribution were among the parameters that were used to compare different modes. The proposed jackets increased the carrying capacity by 10 to 38%, depending on the processing curing environment and the type of nanoparticles. The combined use of aluminium oxide nanoparticles and waste paper ash can improve compressive, tensile, and flexural strengths and increase the axial load capacity of bridge columns. The proposed concrete jacket effectively reduces the corrosion of concrete and steel reinforcement and improves the bridge’s useful life.

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“…Reinforced concrete (RC) is a composite material composed of rebar and concrete. It takes advantage of the positive characteristics of both of its components and is widely used in roads, bridges, ports and offshore infrastructure [1][2][3][4][5]. As noted in previous studies, a large number of RC structures do not reach their predetermined design service life, but rather, fail due to insufficient durability [6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

A Review of Durability Issues of Reinforced Concrete Structures Due to Coastal Soda Residue Soil in China

Xiang

Jiang

et al. 2022

JMSE

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Soda residue soil (SRS) is a man-made engineering foundation soil formed by soda residue; it is mainly distributed in coastal areas in China. SRS is rich in a variety of corrosive salts, among which the concentrations of chloride ions are about 2–3 times that of seawater. These highly concentrated chloride ions migrate and diffuse in reinforced concrete (RC) structures built on coastal SRS through multiple transport mechanisms. However, current research on the durability of RC structures exposed to the coastal SRS environment has not led to the publication of any reports in the literature. SRS may be classified by analyzing the quantitative relationships among the corrosive ions it contains. In this paper, the deterioration of RC structures due to the corrosive saline-soil environment in China is discussed, and advances in RC structure durability under such circumstances are reviewed. Our findings show that a corrosive environment, especially when this is a result of coastal SRS, has a significant influence on the deterioration of RC structures, greatly threatening such buildings. A series of effective measures for enhancing the durability of RC structures in saline soil, including improvements in concrete strength, reductions in the water–binder ratio, the addition of mineral admixtures and fiber-reinforcing agents, etc., could provide a vital foundation for enhancing the durability of RC structures which are at risk due to coastal SRS. Vital issues that must be investigated regarding the durability of RC structures are proposed, including the transport mechanism and a prediction model of corrosive ions, dominated by chloride ions (Cl−), in SRS and RC structures, the deterioration mechanism of RC materials, a long-term performance deduction process of RC components, durability design theory, and effective performance enhancement measures. The findings of this paper provide some clear exploration directions for the development of basic theories regarding RC structure durability in coastal SRS environments and go some way to making up for the research gap regarding RC structure durability under corrosive soil environments.

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Seismic Assessment and Retrofitting of Existing Road Bridges: State of the Art Review

Cited by 8 publications

References 83 publications

Research on the Application of BRBs in Seismic Resistance of Bridge

Research on the Application of BRBs in Seismic Resistance of Bridge

Investigating the Feasibility of Using Concrete Containing Waste Paper Sludge Ash and Pozzolanic Materials to Repair Bridge Stub Columns

A Review of Durability Issues of Reinforced Concrete Structures Due to Coastal Soda Residue Soil in China

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