Proposal of an Integrated Index for Prioritization of Bridge Maintenance

Valenzuela, Sergio Silva; Solminihac, Hernán de; Echaveguren, Tomás

doi:10.1061/(asce)be.1943-5592.0000068

Cited by 60 publications

(27 citation statements)

References 16 publications

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“…According to Valenzuela [17], material factor is an important parameter that should be considered in structural assessment of bridge elements. Based on vulnerability of different material it ranges between 1 (steel) and 4 (precast concrete) (see Table 4).…”

Section: Materials Vulnerability Factormentioning

confidence: 99%

A Methodology for Bridge Condition Evaluation

Rashidi¹

2012

JCEA

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Due to the substantial role of bridges in transportation networks and in accordance with the limited funding for bridge management, remediation strategies have to be prioritised. A conservative bridge assessment will result in unnecessary actions, such as costly bridge strengthening or repairs. On the other hand, any bridge maintenance negligence and delayed actions may lead to heavy future costs or degraded assets. The accuracy of decisions developed by any manager or bridge engineer relies on the accuracy of the bridge condition assessment which emanates from visual inspection. Many bridge rating systems are based on a very subjective procedure and are associated with uncertainty and personal bias. The developing condition rating method described herein is an important step in adding more holism and objectivity to the current approaches. Structural importance and material vulnerability are the two main factors that should be considered in the evaluation of element structural index and the causal factor as the representative of age, environment, road class and inspection is implemented as a coefficient to the OSCI (overall structural condition index). The AHP (analytical hierarchy process) has been applied to evaluate the priority vector of the causal parameters.

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Section: Materials Vulnerability Factormentioning

confidence: 99%

A Methodology for Bridge Condition Evaluation

Rashidi¹

2012

JCEA

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“…This is referred to as the isotonicity principle. Table 1 shows the list of possible variables that can be considered for the analysis (Gralund and Puckett, 1996;Woodward et al, 2001;Chassiakos et al, 2005;Hai, 2008;Valenzuela et al, 2010). The reasons for exclusion of a particular variable are given under the 'remarks' column of Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…In addition to the bridge health index, the other criteria used for deciding the maintenance priority are: importance of the bridge, deck area of the bridge, the maintenance cost required, traffic volume, age of the bridge, etc. (Gralund and Puckett, 1996;Woodward et al, 2001;Chassiakos et al, 2005;Hai, 2008;Valenzuela et al, 2010). The maintenance priority of bridges is determined on the basis of the availability of information about the aforementioned factors along with the bridge health index.…”

Section: Literature Reviewmentioning

confidence: 99%

“…are taken into account for the assessment rating. Valenzuela et al (2010) have considered the annual average daily traffic, length and width of bridge, availability of alternative routes, social and economic development of the area and load restriction to develop the index. Hai (2008) has taken into consideration location, width, and traffic volume for the determination of bridge importance.…”

Section: Introductionmentioning

confidence: 99%

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Prioritization of bridges for maintenance planning using data envelopment analysis

Wakchaure¹,

Jha

2011

Construction Management and Economics

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Resources-especially funds allotted-for the maintenance of bridges, are generally scanty. Thus, it becomes difficult to select bridges for maintenance from among several competing bridges to ensure their safety and serviceability to the desired level. A bridge health index is considered a reasonably accurate depiction of the condition of a bridge and hence is the basis for most of the decisions on fund allocation. However, it still remains to be seen whether such a decision-making tool results in an efficient fund allocation. From data collected on Indian bridges, it is observed that fund allocation based on bridge condition is not always judicious. Rather, a number of factors affect the final decision on fund allocation. Hence, an alternative approach of data envelopment analysis (DEA) has been used for scoring the efficiency of 14 bridges selected for the study. Depending on the availability of data, this method can take into account other factors besides the bridge health index that influence decisions on maintenance planning. The variables selected for the DEA are: bridge health index, deck area of the bridge, maintenance cost of the bridge, and the age of the bridge. The allocation of funds for the maintenance of bridges based on DEA has proved to be comparatively more efficient. This has been illustrated with the help of a numerical example. The proposed method would enable bridge authorities to formulate better strategies for planning and executing bridge maintenance activities in a cost-effective manner.

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“…Al- Barqawi and Zayed, 2006;Avşar et al, 2012;Greimann et al, 1990;McKay et al, 1999;Valenzuela et al, 2010). In the context of CBM, CIs are used in estimating routine and urgent maintenance needs and identifying needs for more detailed studies in which specific and detailed methods and models are necessary to estimate the health of structures.…”

Section: The Condition Index Conceptmentioning

confidence: 99%

Proposal of a condition index for maintenance of runway beams

Echaveguren¹,

Dechent²,

Giuliano³

et al. 2014

Proceedings of the Institution of Civil Engineers - Structures

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Condition-based maintenance is a maintenance philosophy based on systematic visual inspection and condition ratings. Condition-based maintenance requires specific visual inspection protocols and condition rating models calibrated for each type of infrastructure. The purpose of this study is to explore the development of a method for estimating the current condition of a type of infrastructure based on visual inspection and expert judgement. A condition index, based on the condition-based maintenance philosophy, is proposed for use in assessing the current condition of a type of infrastructure and establishing maintenance strategies such as rehabilitation, reconstruction and restoration. The method was applied to runway beams fabricated in a steelworks company in Chile. Two models -a linear model and a dichotomic model -were calibrated and the correlation coefficients obtained were 0 . 9 for both models. It is thus concluded that the method is suitable and easily applicable under the condition-based maintenance concept. Further research is needed to improve the model by including maintenance costs.

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Proposal of an Integrated Index for Prioritization of Bridge Maintenance

Cited by 60 publications

References 16 publications

A Methodology for Bridge Condition Evaluation

A Methodology for Bridge Condition Evaluation

Prioritization of bridges for maintenance planning using data envelopment analysis

Proposal of a condition index for maintenance of runway beams

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