Report: Extreme Wind and Salt Influence on Adriatic Bridges

Radić, Jure; Šavor, Zlatko; Puž, Goran

doi:10.2749/101686603777964487

Cited by 13 publications

(13 citation statements)

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“…Over the years many deficiencies and rapid degradation were identified on the older Adriatic bridges. The combination of aggressive exposure conditions, poor detailing, neglecting durability problems and construction errors resulted in serious deterioration of structural members, reinforcement corrosion being a major issue [4]. The analyses of these large arch bridges designed according to different codes, with different reliability levels, is a relevant issue in order to establish their limit states in their appropriate maintenance strategy.…”

Section: Assessment Of Adriatic Arch Bridgesmentioning

confidence: 99%

Balance of nature and engineering requirements on existing arch bridges

Ivanković¹,

Gleđ²,

Franetović³

2014

IABSE Reports

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In order to sustain the equilibrium between the nature and requirements on structures based on contemporary standards, research on development of assessment procedures for existing arch bridges exposed to wind load and located in seismic active areas is developing through last few years in Croatia as a part of an extensive project to develop their appropriate maintenance strategy. In this paper an overview of assessment results for Adriatic arch bridges with spans ranging from 200 m to almost 400 m will be presented. More detailed assessment of the Krk Bridge spanning 244 m and exposed to severe wind load will be presented.

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Section: Assessment Of Adriatic Arch Bridgesmentioning

confidence: 99%

Balance of nature and engineering requirements on existing arch bridges

Ivanković¹,

Gleđ²,

Franetović³

2014

IABSE Reports

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“…It was found that inspections were not performed at regular periods. Since the Markov chain operates with discrete periods of times, the dataset, which is considerably large for the observed group of bridges (Savor et al 2002, Radic et al 2003, could not be used.…”

Section: Modelling Future Pier Deteriorationmentioning

confidence: 99%

“…The dominant cause of the observed damages is the reinforcement corrosion caused by high chloride content, which penetrated into the concrete. It should be noted that the Adriatic sea water contains more salt than other seas, the salinity being between 3.5% and 3.8% of the water mass (Savor et al 2002, Radic et al 2003.…”

mentioning

confidence: 99%

Life-cycle performance model based on homogeneous Markov processes

Puž

Radić

2011

Structure and Infrastructure Engineering

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All civil engineering structures are deteriorating in time, at a different rate. The current and future states of a structure are associated with various degrees of uncertainty, and, therefore, a probabilistic approach is appropriate in order to predict future needs for maintenance and repair. Some existing models use discrete-time Markov processes called Markov chains. In this paper, homogeneous Markov processes (HMPs) with a finite set of condition states and a continuous parameter (time) are used. The aim is to make a probabilistic forecast of the condition of the structure, using time as a continuous parameter, so that probabilities of condition states can be calculated at each moment. The model is applied to the calculation of probability of possible future deterioration of the piers of Krk bridge (Croatia) that have already been repaired.

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“…Hence, it is not surprising that bridges and overpasses on motorways are more vulnerable to chloride-induced corrosion comparing to structures on roads of lower classes without intensive traffic [3]. Adriatic coast provides an extremely aggressive maritime environment to concrete structures, especially at the location of the large span reinforced concrete arch bridges: Krk Bridge, Pag Bridge and Maslenica Bridge due to the combination of the following phenomena [8,14,30]:…”

Section: Vulnerability Of Bridges To Chloride-induced Reinforcement Cmentioning

confidence: 99%

“…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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Report: Extreme Wind and Salt Influence on Adriatic Bridges

Cited by 13 publications

References 0 publications

Balance of nature and engineering requirements on existing arch bridges

Balance of nature and engineering requirements on existing arch bridges

Life-cycle performance model based on homogeneous Markov processes

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

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