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Papers by Hammad Dabo
The main objective of this study was to prioritize the criteria for the inspection of civil and s... more The main objective of this study was to prioritize the criteria for the
inspection of civil and structure facilities in onshore process plants based on asset
integrity management theory framework. A pairwise comparison of criteria against
the alternatives was done using Delphi Technique. Analytic Hierarchy Process
(AHP) was used to rank the criteria. The judgment was acceptable with a consistence
Index of (CI) of 0.01. Impact on safety was ranked the most important criteria
in the inspection of civil and structure facilities based on the experts’ judgment.
While impact on asset and impact on production are of equal importance. Finally,
impact on reputation is less important to all the criteria studied. The ranking
technique may be used in making maintenance decision for any type of structure if
the design and maintenance data cannot be reached. However, it is recommended to
add sub criteria in future study
One of the most significant step in building structure maintenance decision is the physical ins... more One of the most significant step in building structure maintenance decision is the physical inspection of the facility to be maintained. The physical inspection involved cursory assessment of the structure and ratings of the identified defects based on expert evaluation. The objective of this paper is to describe present a novel approach to
prioritizing the criticality of physical defects in a residential building system using multi
criteria decision analysis approach. A residential building constructed in 1985 was
considered in this study. Four criteria which includes; Physical Condition of the building
system (PC), Effect on Asset (EA), effect on Occupants (EO) and Maintenance Cost (MC) are considered in the inspection. The building was divided in to nine systems regarded as alternatives. Expert’s choice software was used in comparing the importance of the criteria against the main objective, whereas structured Proforma was used in
quantifying the defects observed on all building systems against each criteria. The defects severity score of each building system was identified and later multiplied by the weight of the criteria and final hierarchy was derived. The final ranking indicates that, electrical
system was considered the most critical system with a risk value of 0.134 while ceiling system scored the lowest risk value of 0.066. The technique is often used in prioritizing mechanical equipment for maintenance planning. However, result of this study indicates that the technique could be used in prioritizing building systems for maintenance planning
As the world's population continues to grow, so the demands for infrastructure continue to increa... more As the world's population continues to grow, so the demands for infrastructure continue to increase immensely. This has increased pressure on the already depleting natural resources that are believed to be the sources of all construction materials. Similarly, the global outcry of ageing infrastructure that possess both environmental and health hazard to the users and society is increasing. While demolishing and replacement may increase consumption of depleting natural raw materials, ignoring the ageing facility will result to catastrophic safety hazard and economic risk. Therefore, a sustainable maintenance approach is necessary to balance the two conflicting scenarios. This has led to the emergence of risk based management approach. Therefore, the objective of this conceptual paper is to highlight the concept of risk based maintenance and demonstrate how the technique can be used to sustainably maintain infrastructure facility for long term benefits.
"One of the major constrains facing the construction industry is multiple stakeholders as well as... more "One of the major constrains facing the construction industry is multiple stakeholders as well as numerous stages related to a construction process. Disintegration remains a barrier to smooth flow of information among stakeholders which may consequently lead to a poor communication and staggered information handling. The break in flow of information may eventually leads to growth in mistrust and poor relationships between actors involved in the construction projects and this may trigger an internal risk. On the other hand, development in information and communication has resulted to innovations aimed at re-engineering construction process from conceptual phase to operation and maintenance. One of such innovations is the building information modelling popularly known as BIM. BIM is a new approach to integrated project delivery in which, a single comprehensive repository of the facilities data from
conceptual to operation and maintenance is generated and coordinated concurrently. It is considered as a novel revolutionary achievement in the construction industry that will enhance effective communication and subsequently improves productivity in construction project delivery. Therefore, the objectives of this paper are to review the concept of Building information modelling (BIM) and demonstrate how BIM can reduce internal risk in construction delivery process."
Proceedings of the 44th ASC …, Jan 1, 2008
The main objective of this study was to prioritize the criteria for the inspection of civil and s... more The main objective of this study was to prioritize the criteria for the
inspection of civil and structure facilities in onshore process plants based on asset
integrity management theory framework. A pairwise comparison of criteria against
the alternatives was done using Delphi Technique. Analytic Hierarchy Process
(AHP) was used to rank the criteria. The judgment was acceptable with a consistence
Index of (CI) of 0.01. Impact on safety was ranked the most important criteria
in the inspection of civil and structure facilities based on the experts’ judgment.
While impact on asset and impact on production are of equal importance. Finally,
impact on reputation is less important to all the criteria studied. The ranking
technique may be used in making maintenance decision for any type of structure if
the design and maintenance data cannot be reached. However, it is recommended to
add sub criteria in future study
One of the most significant step in building structure maintenance decision is the physical ins... more One of the most significant step in building structure maintenance decision is the physical inspection of the facility to be maintained. The physical inspection involved cursory assessment of the structure and ratings of the identified defects based on expert evaluation. The objective of this paper is to describe present a novel approach to
prioritizing the criticality of physical defects in a residential building system using multi
criteria decision analysis approach. A residential building constructed in 1985 was
considered in this study. Four criteria which includes; Physical Condition of the building
system (PC), Effect on Asset (EA), effect on Occupants (EO) and Maintenance Cost (MC) are considered in the inspection. The building was divided in to nine systems regarded as alternatives. Expert’s choice software was used in comparing the importance of the criteria against the main objective, whereas structured Proforma was used in
quantifying the defects observed on all building systems against each criteria. The defects severity score of each building system was identified and later multiplied by the weight of the criteria and final hierarchy was derived. The final ranking indicates that, electrical
system was considered the most critical system with a risk value of 0.134 while ceiling system scored the lowest risk value of 0.066. The technique is often used in prioritizing mechanical equipment for maintenance planning. However, result of this study indicates that the technique could be used in prioritizing building systems for maintenance planning
As the world's population continues to grow, so the demands for infrastructure continue to increa... more As the world's population continues to grow, so the demands for infrastructure continue to increase immensely. This has increased pressure on the already depleting natural resources that are believed to be the sources of all construction materials. Similarly, the global outcry of ageing infrastructure that possess both environmental and health hazard to the users and society is increasing. While demolishing and replacement may increase consumption of depleting natural raw materials, ignoring the ageing facility will result to catastrophic safety hazard and economic risk. Therefore, a sustainable maintenance approach is necessary to balance the two conflicting scenarios. This has led to the emergence of risk based management approach. Therefore, the objective of this conceptual paper is to highlight the concept of risk based maintenance and demonstrate how the technique can be used to sustainably maintain infrastructure facility for long term benefits.
"One of the major constrains facing the construction industry is multiple stakeholders as well as... more "One of the major constrains facing the construction industry is multiple stakeholders as well as numerous stages related to a construction process. Disintegration remains a barrier to smooth flow of information among stakeholders which may consequently lead to a poor communication and staggered information handling. The break in flow of information may eventually leads to growth in mistrust and poor relationships between actors involved in the construction projects and this may trigger an internal risk. On the other hand, development in information and communication has resulted to innovations aimed at re-engineering construction process from conceptual phase to operation and maintenance. One of such innovations is the building information modelling popularly known as BIM. BIM is a new approach to integrated project delivery in which, a single comprehensive repository of the facilities data from
conceptual to operation and maintenance is generated and coordinated concurrently. It is considered as a novel revolutionary achievement in the construction industry that will enhance effective communication and subsequently improves productivity in construction project delivery. Therefore, the objectives of this paper are to review the concept of Building information modelling (BIM) and demonstrate how BIM can reduce internal risk in construction delivery process."
Proceedings of the 44th ASC …, Jan 1, 2008