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 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.

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 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.

Encyclopedia of Renewable and Sustainable Materials

Encyclopedia of Renewable and Sustainable Materials
Author:
Publisher: Elsevier
Total Pages: 4238
Release: 2020-01-09
Genre: Reference
ISBN: 0128131969

Encyclopedia of Renewable and Sustainable Materials, Five Volume Set provides a comprehensive overview, covering research and development on all aspects of renewable, recyclable and sustainable materials. The use of renewable and sustainable materials in building construction, the automotive sector, energy, textiles and others can create markets for agricultural products and additional revenue streams for farmers, as well as significantly reduce carbon dioxide (CO2) emissions, manufacturing energy requirements, manufacturing costs and waste. This book provides researchers, students and professionals in materials science and engineering with tactics and information as they face increasingly complex challenges around the development, selection and use of construction and manufacturing materials. Covers a broad range of topics not available elsewhere in one resource Arranged thematically for ease of navigation Discusses key features on processing, use, application and the environmental benefits of renewable and sustainable materials Contains a special focus on sustainability that will lead to the reduction of carbon emissions and enhance protection of the natural environment with regard to sustainable materials

Building Ecology

Building Ecology
Author: Peter Graham
Publisher: John Wiley & Sons
Total Pages: 304
Release: 2009-02-12
Genre: Technology & Engineering
ISBN: 1405147547

Buildings consume 40% of our planet’s materials and 30% of its energy. Their construction uses up to three million tonnes of raw materials a year and generates 20% of the soild waste stream. If we want to survive our urban future, there is no option but to build in ways which improve the health of ecosystems. Understanding the concept of ecological sustainability and translating it into practice as sustainable development is a key challenge for today’s built environment professionals. The skill and vision of those who shape our cities and homes is vital to achieving sustainable solutions to the many environmental, economic and social problems we face on a local, national and global scale. Peter Graham offers here a holistic view of ecologically sustainable building by drawing on established areas of knowledge, demonstrating their relevance to the environmentally-conscious building professional and putting the process, product and impact of building into context. Case studies illustrate how sustainable principles have been applied successfully and discussion topics are offered to stimulate thought. Building Ecology will help planners, surveyors, designers and builders to incorporate sustainability into their everyday practice by: · showing which styles of building are ecologically sustainable · providing fundamental knowledge for making decisions using the principles of ecologically sustainable building · explaining a complex subject in a clear, balanced way. Building Ecology sets out the current scientific view of how nature works and how buildings link with and affect nature. It provides fundamental knowledge for building in harmony with nature and keeping Earth’s life-supporting ecosystems healthy.

Expanding Boundaries: Systems Thinking in the Built Environment

Expanding Boundaries: Systems Thinking in the Built Environment
Author: Guillaume Habert
Publisher: vdf Hochschulverlag AG
Total Pages: 760
Release: 2016-08-15
Genre:
ISBN: 372813774X

Consuming over 40% of total primary energy, the built environment is in the centre of worldwide strategies and measures towards a more sustainable future. To provide resilient solutions, a simple optimisation of individual technologies will not be sufficient. In contrast, whole system thinking reveals and exploits connections between parts. Each system interacts with others on different scales (materials, components, buildings, cities) and domains (ecology, economy and social). Whole-system designers optimize the performance of such systems by understanding interconnections and identifying synergies. The more complete the design integration, the better the result. In this book, the reader will find the proceedings of the 2016 Sustainable Built Environment (SBE) Regional Conference in Zurich. Papers have been written by academics and practitioners from all continents to bring forth the latest understanding on systems thinking in the built environment.