Developing a probable cost analysis model for comparing bridge deck rehabilitation methods

Shim, Hyung Seop; Lee, Seung Hyun

doi:10.1007/s12205-015-2634-8

Cited by 8 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of an SHM system has the potential to yield savings in inspection and maintenance operations. The inspection costs are associated with scheduled operations carried out at regular intervals, 41,42 while maintenance costs depend on the probability of damage detection. 16 The expected inspection costs at time t can be computed as…”

Section: Cost Analysis Of Bridges With Shm Systemsmentioning

confidence: 99%

Life-cycle management cost analysis of transportation bridges equipped with seismic structural health monitoring systems

Torti

Venanzi

Laflamme

et al. 2021

Structural Health Monitoring

View full text Add to dashboard Cite

Life-cycle cost analysis is an approach that has gained popularity for assisting the design of civil infrastructures. The life-cycle cost analysis approach can be leveraged for structures equipped with structural health monitoring systems in order to quantify the benefits of the technology and de facto support its long-term implementation. However, for new structures, the long-term assessment of the expected value of the total investment cost, in terms of the current worth at the design time, is still the focus of ongoing research due to unknowns and uncertainties on the impact of the structural health monitoring system on long-term structural performance. This article proposes a new combined model of life-cycle cost formulation and simulation methodology for the long-term financial assessment of transportation bridges equipped with seismic structural health monitoring systems, in order to evaluate the total costs and benefits offered by such monitoring systems for post-seismic assessments. The formulation characterizes the time evolution of bridge management cost terms, highlighting the most sensitive parameters. The simulation methodology allows to quantitatively weigh each maintenance action on the total cost based on when the action is performed. The model is used to compare structures managed by the traditional approach of post-earthquake inspection versus those managed by a condition-based approach enabled by structural health monitoring systems. The originality of the model empowers the comparison by payback time, defined as the break-even point between costs and benefits of a structural health monitoring system, as well as by economic gain, defined as the difference between the total costs of an unmonitored versus a monitored structure through the end of service life. The proposed model is demonstrated through parametric analyses on a case study consisting of a continuous steel-concrete composite bridge, where the structural health monitoring system is used to monitor the elastic limit state condition of bending forces in piers during the earthquake.

show abstract

Section: Cost Analysis Of Bridges With Shm Systemsmentioning

confidence: 99%

Life-cycle management cost analysis of transportation bridges equipped with seismic structural health monitoring systems

Torti

Venanzi

Laflamme

et al. 2021

Structural Health Monitoring

View full text Add to dashboard Cite

show abstract

“…Rehabilitation or repair has to be carried out when the structure reaches a critical limit state [5,42].…”

Section: Life-cycle Cost Analysis For Girder Bridgesmentioning

confidence: 99%

An Automated Procedure for Assessing Local Reliability Index and Life‐Cycle Cost of Alternative Girder Bridge Design Solutions

Venanzi

Castellani²,

Ierimonti

et al. 2019

Advances in Civil Engineering

View full text Add to dashboard Cite

Stakeholders of civil infrastructures have to usually choose among several design alternatives in order to select a final design representing the best trade-off between safety and economy, in a life-cycle perspective. In this framework, the paper proposes an automated procedure for the estimation of life-cycle repair costs of different bridge design solutions. The procedure provides the levels of safety locally guaranteed by the selected design solution and the related total life-cycle cost. The method is based on the finite element modeling of the bridge and uses design traffic models as suggested by international technical standards. Both the global behavior and the transversal cross section of the bridge are analyzed in order to provide local reliability indexes. Several parameters involved in the design, such as geometry and loads and materials’ characteristics, are considered as uncertain. Degradation models are adopted for steel carpentry and rebars. The application of the procedure to a road bridge case study shows its potential in providing local safety levels for different limit states over the entire lifetime of the bridge and the life-cycle cost of the infrastructure, highlighting the importance of the local character of the life-cycle cost analysis.

show abstract

“…Several structures are reaching their design life in Europe and America, which leads the engineers to a new concern: the need to develop rehabilitation projects aiming to guarantee structural integrity and design life increase (Radomski, 2013). Rehabilitation is usually an attractive alternative, once it represents between 10% and 30% of the total cost of a similar new structure for most cases (Shim et al, 2015).…”

Section: The Challenges Of Rehabilitating the Hercilio Luz Suspensionmentioning

confidence: 99%

The Challenges of Rehabilitating the Hercilio Luz Suspension Bridge

Carvalho

Fakury

Vilela

2017

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

Developing a probable cost analysis model for comparing bridge deck rehabilitation methods

Cited by 8 publications

References 6 publications

Life-cycle management cost analysis of transportation bridges equipped with seismic structural health monitoring systems

Life-cycle management cost analysis of transportation bridges equipped with seismic structural health monitoring systems

An Automated Procedure for Assessing Local Reliability Index and Life‐Cycle Cost of Alternative Girder Bridge Design Solutions

The Challenges of Rehabilitating the Hercilio Luz Suspension Bridge

Contact Info

Product

Resources

About