Sustainability Costing to Aid Bridge Management Decision Making

Sustainability Costing to Aid Bridge Management Decision Making
Author: Arsha Tabrizi
Publisher:
Total Pages: 303
Release: 2016
Genre: Bridges
ISBN: 9781369353990

Many bridges in this country have reached their intended service-life, and are deemed in need of maintenance, rehabilitation, and replacement services. A life cycle inventory collects relevant information about sustainability impacts that can be used to assess the effect of decisions on the economy, environment and society. Sustainability is important because it considers impacts that are externalized from traditional costing systems; so the impacts result in costs but bridge owners do not measure or pay those costs directly. Bridge management sustainability assessment can be thought of as impacting owners, road users, and the environment. As funding for bridge maintenance, rehabilitation, and replacement services dwindle there are greater incentives for sustainable decision making. The development of inventories that assist practitioners in exercising sustainable bridge management techniques are increasingly becoming relevant in bridge management systems (BMS). The bidding process for bridge repair projects illustrates how including sustainable assessment into decision-making can improve upon BMS. Typically, A+B bidding considers both owner costs per item (A) and the costs incurred to the road users as a result of the time to complete the project (B); monetary values are assigned to the time necessary to complete the project and the bidder with the lowest total costs (A+B) is rewarded. The manner at which time is costed is dependent on the agency and can consider road user and vehicle operating costs. However, during traditions construction operations. the costs incurred to society, specifically road users, through travel delays and increased vehicle operation costs are being disregarded. In addition, the environmental costs to human health from pollutant emissions are ignored. These impacts can be greater from specific maintenance, rehabilitation, and replacement service operations and differ from normal traffic patterns. By incorporating the costs incurred to users and the environment, both efficient and sustainable practices can be incentivized, therefore catalyzing contractors to further develop detailed and sustainable plans when bidding for and carrying out a project. For this study, we investigated various maintenance, rehabilitation and replacement actions that are pivotal to the structural health of a bridge. As a case study, the impacts of different deck expansion joint rehabilitation/replacement options measured sustainability impacts in the units of dollars. Thus, costs are associated with impacts incurred by the owner, user, and environment and are summed to provide a total cost to score the overall efficiency and sustainability of each option. Employing the A+B+C costing method, the options with the lowest cost prove to be the most efficient and sustainable. A full-depth replacement of an abutment expansion joint, on a particular bridge, was the primary focus of the case-study conducted. The joint's headers were fully removed as were the armoring and in-place sealant. Using the A+B+C costing method, the most sustainable joint maintenance program, for the particular abutment expansion joint, was determined for the bridge's remaining service life. It was found that the most cost effective joint maintenance program includes a full depth removal of the headers in 2015, and a partial depth replacement of the headers with Class A concrete in 2027. From these findings, the best option is an open compression seal implemented after the full depth replacement in 2015, and replacing the open compression seal with a strip seal in 2030. The lowest cost to the owner, users, and the environment for joint maintenance and replacement for the remaining life of the bridge is approximately $188,000.00. The most expensive joint maintenance program includes a full depth removal of the headers in 2015, and 7 partial depth replacement of the headers with elastomeric concrete; the headers replacement schedule would be supplemented with a new strip seal implemented in 2015 and open compressions seals implemented in 2030 and 2036. The most expensive option would cost approximately $285,000.00, approximately 52% more expensive than the optimized program. Within each program considered the owner costs ranged between 10-15% of the total costs, the societal costs ranged between 80-90% of the total costs while the environmental costs ranged between 2.6 and 2.7% of the total costs.

Bridge Safety, Maintenance and Management in a Life-Cycle Context

Bridge Safety, Maintenance and Management in a Life-Cycle Context
Author: Dan M. Frangopol
Publisher: CRC Press
Total Pages: 297
Release: 2022-02-16
Genre: Science
ISBN: 1000564517

During the past two decades, it has been generally acknowledged that life-cycle bridge analysis can be a systematic tool to address efficient and effective bridge management under uncertainty life-cycle management at the bridge network level can lead to an improvement in the allocation of limited financial resources, ensuring the safety and functionality of the bridge network life-cycle management of bridges and bridge networks based on resilience and sustainability can improve their resistance and robustness to extreme events such as earthquakes, tsunamis, floods, and hurricanes bridge management should consider the impact of environmental conditions and climate change This book addresses important concepts and approaches developed recently on bridge safety, maintenance, and management in a life-cycle context. Bridge life-cycle performance and cost analysis, prediction, optimization, and decision making under uncertainty are discussed. The major topics include bridge safety and service life prediction; bridge inspection and structural health monitoring; bridge maintenance; life-cycle bridge and bridge network management; optimum life-cycle bridge management planning; resilience and sustainability of bridges and bridge networksunder hazards; and bridge management considering climate change. By providing practical applications of the presented concepts and approaches, this book can help students, researchers, practitioners, infrastructure owners and managers, and transportation officials to build up their knowledge of life-cycle bridge performance and cost management at bothproject level and network level under various deteriorating mechanisms, hazards and climate change effects.

Life Cycle Sustainability Assessment For Multi-Criteria Decision Making In Bridge Design: A Review

Life Cycle Sustainability Assessment For Multi-Criteria Decision Making In Bridge Design: A Review
Author: Ignacio Javier Navarro
Publisher: Infinite Study
Total Pages: 15
Release:
Genre: Mathematics
ISBN:

Sustainable design of infrastructures has become a major matter of study since the recent establishment of the Agenda 2030. This paper provides a systematic literature review on the use of multi-criteria decision making techniques used so far for the sustainable design of bridges. Special attention is put as well on how the reviewed studies assess the sustainable performance of bridge designs along their life cycle from the economic, the environmental and the social perspective. Although SAW and AHP are recurrently used in the sustainable assessment of bridges, the analysis of the most recent articles show that the application of TOPSIS and PROMETHEE techniques are gaining increasing relevance for such purpose. Most of the studies focus on the research of the construction and the maintenance stage of bridges. However, a need for further analysis is identified when it comes to the assessment of the impacts resulting from the End of Life cycle stage of bridges from a sustainable point of view. The use of intuitionistic and neutrosophic logic have been detected as emerging alternatives to the fuzzy approach of decision making problems.

Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations

Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations
Author: Hiroshi Yokota
Publisher: CRC Press
Total Pages: 926
Release: 2021-04-20
Genre: Technology & Engineering
ISBN: 1000173755

Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations contains lectures and papers presented at the Tenth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2020), held in Sapporo, Hokkaido, Japan, April 11–15, 2021. This volume consists of a book of extended abstracts and a USB card containing the full papers of 571 contributions presented at IABMAS 2020, including the T.Y. Lin Lecture, 9 Keynote Lectures, and 561 technical papers from 40 countries. The contributions presented at IABMAS 2020 deal with the state of the art as well as emerging concepts and innovative applications related to the main aspects of maintenance, safety, management, life-cycle sustainability and technological innovations of bridges. Major topics include: advanced bridge design, construction and maintenance approaches, safety, reliability and risk evaluation, life-cycle management, life-cycle sustainability, standardization, analytical models, bridge management systems, service life prediction, maintenance and management strategies, structural health monitoring, non-destructive testing and field testing, safety, resilience, robustness and redundancy, durability enhancement, repair and rehabilitation, fatigue and corrosion, extreme loads, and application of information and computer technology and artificial intelligence for bridges, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of making more rational decisions on maintenance, safety, management, life-cycle sustainability and technological innovations of bridges for the purpose of enhancing the welfare of society. The Editors hope that these Proceedings will serve as a valuable reference to all concerned with bridge structure and infrastructure systems, including engineers, researchers, academics and students from all areas of bridge engineering.

Bridge Maintenance, Safety, Management, Resilience and Sustainability

Bridge Maintenance, Safety, Management, Resilience and Sustainability
Author: Fabio Biondini
Publisher: CRC Press
Total Pages: 4119
Release: 2012-06-21
Genre: Technology & Engineering
ISBN: 0203103386

Bridge Maintenance, Safety, Management, Resilience and Sustainability contains the lectures and papers presented at The Sixth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2012), held in Stresa, Lake Maggiore, Italy, 8-12 July, 2012. This volume consists of a book of extended abstracts (800 pp) Extensive collection of revised expert papers on recent advances in bridge maintenance, safety, management and life-cycle performance, representing a major contribution to the knowledge base of all areas of the field.

Sustainability assessment of concrete bridge deck designs in coastal environments using neutrosophic criteria weights

Sustainability assessment of concrete bridge deck designs in coastal environments using neutrosophic criteria weights
Author: Ignacio J. Navarro
Publisher: Infinite Study
Total Pages: 20
Release:
Genre: Mathematics
ISBN:

Essential infrastructures such as bridges are designed to provide a long-lasting and intergenerational functionality. In those cases, sustainability becomes of paramount importance when the infrastructure is exposed to aggressive environments, which can jeopardise their durability and lead to significant maintenance demands. The assessment of sustainability is however often complex and uncertain. The present study assesses the sustainability performance of 16 alternative designs of a concrete bridge deck in a coastal environment on the basis of a neutrosophic group analytic hierarchy process (AHP). The use of neutrosophic logic in the field of multi-criteria decision-making, as a generalisation of the widely used fuzzy logic, allows for a proper capture of the vagueness and uncertainties of the judgements emitted by the decision-makers. TOPSIS technique is then used to aggregate the different sustainability criteria. From the results, it is derived that only the simultaneous consideration of the economic, environmental and social life cycle impacts of a design shall lead to adequate sustainable designs. Choices made based on the optimality of a design in only some of the sustainability pillars will lead to erroneous conclusions. The use of concrete with silica fume has resulted in a sustainability performance of 46.3% better than conventional concrete designs.

Bridge Maintenance, Safety, Management and Life-Cycle Optimization

Bridge Maintenance, Safety, Management and Life-Cycle Optimization
Author: Dan Frangopol
Publisher: CRC Press
Total Pages: 744
Release: 2010-07-07
Genre: Technology & Engineering
ISBN: 1000006816

Bridge Maintenance, Safety, Management and Life-Cycle Optimization contains the lectures and papers presented at IABMAS 2010, the Fifth International Conference of the International Association for Bridge Maintenance and Safety (IABMAS), held in Philadelphia, Pennsylvania, USA from July 11 through 15, 2010.All major aspects of bridge maintenance, s

Life-Cycle Cost and Performance of Civil Infrastructure Systems

Life-Cycle Cost and Performance of Civil Infrastructure Systems
Author: Hyo-Nam Cho
Publisher: CRC Press
Total Pages: 332
Release: 2007-07-18
Genre: Science
ISBN: 0415413567

This bookcontains papers covering a wide range of studies on life-cycle performance analysis, design, maintenance, monitoring, management, and cost of civil infrastructure systems. Topics include reliability and optimization as design basis tools, monitoring systems, life-cycle cost analysis and management, bridge management systems, and quality control acceptance criteria. The book also discusses seismic reliability analysis of deteriorating structures, bridge inspection strategies, life-cycle cost analysis of structures on a network level, optimal risk-based design of infrastructures, updating bridge reliability using load monitoring data and statistics of extremes, rehabilitation of bridges, and lifetime analysis and structural repair of civil infrastructure systems.

Structures and Infrastructure Systems

Structures and Infrastructure Systems
Author: Dan M. Frangopol
Publisher: Routledge
Total Pages: 406
Release: 2019-12-18
Genre: Technology & Engineering
ISBN: 135118279X

Our knowledge to model, design, analyse, maintain, manage and predict the life-cycle performance of infrastructure systems is continually growing. However, the complexity of these systems continues to increase and an integrated approach is necessary to understand the effect of technological, environmental, economic, social, and political interactions on the life-cycle performance of engineering infrastructure. In order to accomplish this, methods have to be developed to systematically analyse structure and infrastructure systems, and models have to be formulated for evaluating and comparing the risks and benefits associated with various alternatives. Civil engineers must maximize the life-cycle benefits of these systems to serve the needs of our society by selecting the best balance of the safety, economy, resilience and sustainability requirements despite imperfect information and knowledge. Within the context of this book, the necessary concepts are introduced and illustrated with applications to civil and marine structures. This book is intended for an audience of researchers and practitioners world‐wide with a background in civil and marine engineering, as well as people working in infrastructure maintenance, management, cost and optimization analysis. The chapters originally published as articles in Structure and Infrastructure Engineering.

Bridge Management 5

Bridge Management 5
Author: G. A. R. Parke
Publisher: Thomas Telford Publishing
Total Pages: 696
Release: 2005
Genre: Technology & Engineering
ISBN:

Contains over eighty papers covering the fields of bridge management systems, inspection methods, structural assessment and maintenance strategies; together with the reliability and risk management techniques. This book is useful for bridge owners and engineers engaged in bridge design, assessment, repair and strengthening. The last five years have seen the art of bridge management develop into a mature subject. Bridge owners and engineers recognise the importance of implementing fully operational bridge management strategies to ensure that all road and rail bridges remain functional for as long as possible. Bridge structures form a major part of the vast financial investment in infrastructure and consequently their careful management involving structural appraisal, repair and strengthening is of paramount importance. Factors such as the chosen repair method can influence how often and for how long a bridge structure is out of operation. This in turn, determines the ensuing traffic and/or rail delay costs and also any resulting increase in traffic pollution.The 5th volume on Bridge Management contains over eighty papers which span the fields of bridge management systems, inspection methods, structural assessment and maintenance strategies; together with the latest reliability and risk management techniques. Almost all of these papers have been presented at the Fifth International Conference on Bridge Management held at the University of Surrey in Guildford, UK in 2005. The book will prove to be a very useful reference manual for all bridge owners and engineers engaged in bridge design, assessment, repair and strengthening. The volume is also recommended as a reference text for other professionals who are concerned with care of the environment and the minimisation of pollution due to traffic delays and non-conventional repair and protection methods.