Rehabilitation of timber bridges in Ghana with case studies of the Kaase Modular Timber Bridge

Lumor, R; Ankrah, John Solomon; Bawa, Shaibu; Dadzie, Esi; Osei, Ophelia

doi:10.1016/j.engfailanal.2017.04.003

Cited by 9 publications

(2 citation statements)

References 2 publications

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“…Among these phenomena, decay attack is frequently recognised as a main cause leading to unexpected structural failures in timber structures. Decay mechanisms generally reduce the cross section of structural members [2][3][4]. For example, Kalamees [5] found that a building failed after 10 years because of the damage produced by dry rot (Serpula lacrymans).…”

Section: Introductionmentioning

confidence: 99%

A Dynamic Bayesian Network framework for spatial deterioration modelling and reliability updating of timber structures subjected to decay

Tran

Bastidas‐Arteaga

Aoues

2020

Engineering Structures

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Reliability assessment of existing timber structures subjected to deterioration processes is an important task to evaluate their serviceability and safety levels. Towards this aim, data collected after inspection campaigns are often used for updating structural reliability and planning future maintenance/inspection activities. Under natural conditions, timber decay involves a large number of uncertainties related to material properties and environmental exposure. These uncertainties are also affected by temporal and spatial variability of associated deterioration processes. In this context, the main objective of this study is to propose a Dynamic Bayesian Network approach for updating the structural reliability of deteriorating timber structures using inspection data. The proposed approach can account for the uncertainties in the decay process and the effect of spatial variability. It is also useful for reliability updating considering the uncertainties of inspection techniques. The proposed methodology is illustrated with the reliability updating of a timber beam subjected to decay deterioration. Results indicate that this approach is useful for evaluating and updating of structural reliability from spatially distributed inspection data. Reliability updating could also be carried out from partial observations at given areas, which is very useful for large-scale infrastructure.

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Section: Introductionmentioning

confidence: 99%

A Dynamic Bayesian Network framework for spatial deterioration modelling and reliability updating of timber structures subjected to decay

Tran

Bastidas‐Arteaga

Aoues

2020

Engineering Structures

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“…If floodwaters increase above safe crossing limits of 300 mm then vehicular access is precluded (Main Roads Western Australia, 2006). The incorporation of floodways offers a cost-effective solution when considering the cost benefit for use in rural road networks that do not service sufficient people to warrant large and expensive structures, such as culverts and bridges (Lumor et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Structural design of floodways under extreme flood loading

Greene

Lokuge

Karunasena

2020

IJDRBE

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Purpose Current methods for floodway design are predominately based on hydrological and hydraulic design principles. The purpose of this paper is to investigate a finite element methods approach for the inclusion of a simplified structural design method into floodway design procedures. Design/methodology/approach This research uses a three-dimensional finite element method to investigate numerically the different parameters, geometric configurations and loading combinations which cause floodway vulnerability during extreme flood events. The worst-case loading scenario is then used as the basis for design from which several structural design charts are deduced. These charts enable design bending moments and shear forces to be extracted and the cross-sectional area of steel and concrete to be designed in accordance with the relevant design codes for strength, serviceability and durability. Findings It was discovered that the analysed floodway structure is most vulnerable when impacted by a 4-tonne boulder, a 900 mm cut-off wall depth and with no downstream rock protection. Design charts were created, forming a simplified structural design process to strengthen the current hydraulic design approach provided in current floodway design guidelines. This developed procedure is demonstrated through application with an example floodway structural design. Originality/value The deduced structural design process will ensure floodway structures have adequate structural resilience, aiding in reduced maintenance and periods of unserviceability in the wake of extreme flood events.

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Nonlinear lateral displacement of the single pile – A seismic analytical investigation

Namdar

2021

Engineering Failure Analysis

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Rehabilitation of timber bridges in Ghana with case studies of the Kaase Modular Timber Bridge

Cited by 9 publications

References 2 publications

A Dynamic Bayesian Network framework for spatial deterioration modelling and reliability updating of timber structures subjected to decay

A Dynamic Bayesian Network framework for spatial deterioration modelling and reliability updating of timber structures subjected to decay

Structural design of floodways under extreme flood loading

Nonlinear lateral displacement of the single pile – A seismic analytical investigation

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