Performance of existing concrete arch bridges

Ivanković, Ana Mandić; Franetović, Marin; Srbić, Mladen

doi:10.2749/222137815818358268

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…In general, previous research on structural elements has focused on elements typical of high-rise buildings (beams, columns), which are produced with ribbed reinforcement [10][11][12][13][14] while a smaller number of studies evaluate the seismic resistance of bridges, especially girders [15][16][17] and arches [18][19][20][21]. By analyzing the main parameters of the seismic resistance indicators [22][23][24], selecting a suitable evaluation method [25], and using the currently available guidelines for the evaluation of structures [26] and recent research in this field [10][11][12][13][14], it is possible to determine seismic resistance reserves of bridges that have not been previously designed and detailed for such actions.…”

Section: Introductionmentioning

confidence: 99%

Plastic Joints in Bridge Columns of Atypical Cross-Sections with Smooth Reinforcement without Seismic Details

et al. 2021

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In seismically active areas, knowledge of the actual behavior of bridges under seismic load is extremely important, as they are crucial elements of the transport infrastructure. To assess their seismic resistance, it is necessary to know the key indicators of their seismic response. Bridges built before the adoption of standards for seismic detailing may still contain structural reserves due to the properties of the used materials and construction approach. For example, smooth reinforcement which is found in older bridges due to the material properties, detailing principles, and lower bond strength compared to ribbed reinforcement, allows for greater deformations. In bridges, columns are vital elements employed in the dissipation of seismic energy. Their cross-sections often deviate from the regular square, rectangular, or round cross-sections, which are typically found in building. Based on the behavior of the columns in the vicinity of potential plastic joints, we can determine their deformability. This paper presents an experimental study of seismic resistance indicators around a potential plastic joint for a column with an atypical cross-section, without seismic details and with smooth reinforcement. The experimental results are compared with the numerical and analytical, but also with the experimental results on samples with ribbed reinforcement. Conclusions are made about the behavior of such column elements and their seismic resistance indicators, allowing for the application of an analytical or numerical method with realistic material and element properties and derivation of correction factors due to the effect of the smooth-reinforcement slippage from the anchorage area.

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Section: Introductionmentioning

confidence: 99%

Plastic Joints in Bridge Columns of Atypical Cross-Sections with Smooth Reinforcement without Seismic Details

et al. 2021

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“…However, many concrete bridges are in poor condition as soon as after 20 to 30 years of service and cannot achieve designed service life without complex and expensive repairs due to the structural and material degradation [3]. The causes of bridge deterioration and shortening of its service life are: errors and negligence during design, poor construction quality, lack of maintenance, degradation mechanism caused by aggressive environment, increasing service load and hazards, and very often a combination of several of the aforementioned causes [4][5][6][7][8][9][10][11][12][13][14][15]. Corrosion of embedded reinforcement is the most prevalent form of degradation of reinforced concrete (RC) structures, especially bridges exposed to the sea and/or de-icing salts.…”

Section: Introductionmentioning

confidence: 99%

Assessment of reinforcement corrosion and concrete damage on bridges using non-destructive testing

2019

JCE

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Assessment of reinforcement corrosion and concrete damage on bridges using non-destructive testing Management of bridges in Croatia and their vulnerability to reinforcement corrosion is discussed in the paper. New maintenance approach, where visual inspections are combined with the non-destructive testing methods, is proposed and demonstrated on six representative bridges. Using this methodology, reinforcement corrosion on structural elements may be detected earlier and more precisely. Obtained results as well as correlations between different measured parameters are important input parameters for prediction of future degradation of structures and decision making for future maintenance activity.

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“…A review of literature relating to the field of seismic resistance reveals that most of the research has been focusing on the calculation and design of new bridges or buildings [1][2][3][4][5]. The existing bridge structures, often designed according to former seismic regulations, or even devoid of any seismic design, may still contain reserves of seismic resistance that should be detected using appropriate assessment methods [6,7] and suitable seismic performance indicators [8][9][10]. The seismic resistance of bridges is affected by a number of parameters.…”

Section: Introductionmentioning

confidence: 99%

Bending moment curvature relationship as an indicator of seismic resistance of older bridge piers

2019

JCE

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Bending moment curvature relationship as an indicator of seismic resistance of older bridge piers In seismic areas, it is recommended to design bridges characterized by ductile behaviour. A large number of existing bridges designed according to outdated standards, without guidelines for ductile behaviour detailing, can be found in seismically active areas. The level of ductility exhibited by these bridges is unknown. A crucial seismic performance indicator for older bridges with piers containing smooth reinforcing bars, i.e. the bending moment-curvature curve (M-j curve), is considered in this paper. The results of analytical, experimental and numerical approaches for determining the M-j curve are compared, and conclusions on the effect of smooth reinforcement slippage are presented.

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Performance of existing concrete arch bridges

Cited by 3 publications

References 8 publications

Plastic Joints in Bridge Columns of Atypical Cross-Sections with Smooth Reinforcement without Seismic Details

Plastic Joints in Bridge Columns of Atypical Cross-Sections with Smooth Reinforcement without Seismic Details

Assessment of reinforcement corrosion and concrete damage on bridges using non-destructive testing

Bending moment curvature relationship as an indicator of seismic resistance of older bridge piers

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