[SS01] Bridge Weigh-in-Motion: technology developments and applications for maintenance
Bridge Weigh-in-Motion (BWIM) turns a bridge into a weight scale for passing vehicles.
Bridge responses are used to estimate individual axle weights of vehicles traversing the bridge at normal operational speed.
This established idea has still room for potential developments in terms of its technology and its applications. This special session is aimed at studies on the use of alternative sensing technologies (e.g. fibre Bragg, accelerometers), improved algorithms and novel approaches (e.g. machine learning) for BWIM technology. In addition, this session welcomes investigations on novel applications of BWIM installations and the use of the gathered traffic information towards bridge maintenance.
[SS02] Small and medium span bridges and culverts: analysis, evaluation, durability, and rehabilitation
Small and medium span bridges and culverts constitute more and more often an element of transportation infrastructure in various parts of the world. However, in many cases, small bridges and culverts are neglected due to their short-span. Therefore, this special session covers the analysis, evaluation, durability, and rehabilitation of all types of culverts (metal, concrete, and plastic) as well as small and medium span bridges. The session also welcomes contributions that include experimental and numerical analyses of such structures under various loads (static, dynamic, fatigue, seismic and anthropogenic) as well as the innovative methods of construction and rehabilitation. For this reason, the special session is in line with the current trends in bridge engineering.
[SS03] Life-Cycle Performance Safety, Reliability, and Risk of Bridges and Infrastructure Systems under Climate Change
[SS04] VIBRATION-BASED MONITORING AND DAMAGE IDENTIFICATION FOR BRIDGES
Several monitoring systems installed on bridges utilize real-time or near-real-time responses for collecting vibration data to make informed decisions related to the health of the structure. The possibility to assess the health state based on data recorded on the monitored structure opens new avenues in maintenance policies, shifting from a traditional ‘scheduled maintenance’ to a ‘condition-based maintenance’, carried out ‘on demand' or ‘automatically’, based on the current structural condition.
The aim of this special session is to report on recent advances and successful applications of Vibration-based Structural Health Monitoring (SHM) and damage identification for bridges. The session welcomes contributions that cover, but are not limited to, theoretical developments, computational issues, experimental techniques and tools for health monitoring, real world applications, integration of SHM in procedures for risk assessment and decision-making.
The expected attendance of IABMAS 2022 by key players on the development and on the application side will ensure that this session offers a real state-of-the-art view of SHM while providing a venue for exchange and share new ideas, as well as a chance to establish and enhance future collaborations on this subject.
[SS05] Design, Construction and Evaluation of Steel/FRP & Concrete Composite Bridge Structures
The main objective of composite concept is to find innovative structures to make the bridges elegant and cost competitive. Steel/FRP & concrete composite structures have been extensively applied in bridge constructions due to the benefits of combining different constructional materials. The aim of this special session is to report on recent advances and successful applications of Steel/FRP & Concrete Composite Bridge Structures. The session welcomes contributions that cover, but are not limited to, case studies, failure analysis, buckling analysis, fatigue life prediction, durability evaluation, bridge management and maintenance.
[SS06] Bridge Precast and Assembly for Urban Regeneration
Bridge precast and assembly is regarded as a most promising construction method for its high production quality and low disturbance to environment and transportation, which is seen in many recent urban regeneration projects. Topics such as high performance material application, intelligent precast factories, connection design for bridge components, construction technology development, and seismic performance in bridge precast and assembly field are of great importance for further research. This Special Session is dedicated to offer bridge engineers a platform for the discussions on the technology schemes, research progress, industry development and project applications of bridge precast and assembly in urban regeneration.
[SS07] Intelligent monitoring and maintenance of bridges
[SS08] Recent Advances in Bridge Design and Construction
Benjamin A. Graybeal
Team Leader, Bridge Engineering Team, Turner-Fairbank Highway Research Center, USA
Bridge construction methods have evolved from traditional construction methods to more recently developed methods such as Accelerated Bridge Construction (ABC) methods to overcome many challenges that arise due to extended periods of construction and site constraints. Consequently, bridge design procedures and details are being evaluated and revised to accommodate the additional loads and other concerns that arise due to the specific bridge construction/replacement technology being implemented and/or site constraints. During past several years, many innovative approaches have been developed and implemented. This session will aggregate the state-of-the-art and practice, lessons learned, performance, and research.
[SS09] Steel Bridge Rehabilitation
In this special session, papers on evaluation, assessment, repair and retrofit of fatigue and corrosion damage in steel highway and railway bridges are presented and discussed. We have a huge number of steel highway and railway bridge structures especially in the urban area and across rivers and straits. Some of those bridges suffer various types of fatigue and corrosion damage, but replace of them should be too expensive, and restriction or close of the traffic could be hardly allowed. Therefore, rehabilitation of those structures becomes of great importance in the very near future.
[SS10] Data-driven asset management – The Scandinavian Way
Transportation infrastructure supports economic growth and quality of life for citizens. Optimal technical and economic operation and maintenance (O&M) of transportation infrastructure, such as bridges, are crucial to support these goals. Today's bridge owners demand solutions that maximise reliability and availability, as well as minimise costs, environmental impacts and the probability of loss of life and limb. To accommodate this, it is important to take into account both experience from current O&M and the possibilities that come with new technologies. Common for both is that data and lean data management are in demand. Research and development of new technologies is a continuous process involving all stakeholders, including innovative bridge owners. This special session focus on applied new technologies, leanings from current asset management and future challenges and possibilities – all seen from a Scandinavian perspective.
[SS11] Data-driven asset management
[SS12] BRIDGE|50 Research Project: Experimental Testing on a 50-Year-Old PC Bridge
BRIDGE|50 is a research project established jointly by Politecnico di Milano and Politecnico di Torino with public authorities and private companies for a wide experimental campaign on a prestressed concrete viaduct dismantled after a 50-year lifetime in the context of the Torino-Ceres construction works. A group of 29 deck beams, including 25 I-beams and 4 box beams, and 2 pier caps have been moved and stored in a testing site. The on-site experimental activities include non-destructive diagnostic tests, full-scale load tests up to collapse, and samples collected for laboratory tests. The objective is gathering new data concerning the life cycle safety and reliability of aging bridges exposed to deterioration processes. This framework of data will provide knowledge advances for public authorities managing bridges and infrastructure networks and represent key information to validate methods for life-cycle assessment of reinforced and prestressed concrete structures. The proposed Special Session follows the successful event organized at IABMAS 2020 and is aimed at presenting the main advances and achievements of the project, including the experimental results of the full scale load tests, and fostering future research activities and implementation in practice of life-cycle design, assessment, maintenance, and management of bridges and critical infrastructure networks (http://www.bridge50.org).
[SS13] Risk-Based Prioritization and Monitoring of Bridges for Road Infrastructure Management in Lombardy Region, Italy
Maria Pina Limongelli
Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, Italy
Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, Italy
Structural deterioration of bridges and infrastructure facilities is a major problem in most developed countries, including Italy, because many bridges have passed or are about to reach 50 years of lifetime and are rapidly approaching the end of the service life. The scale of bridge repair or replacement needs is particularly large and represents a key obstacle to sustainable development of countries. Life-cycle management of aging bridges and infrastructure systems is hence a high priority and public authorities need specific criteria, methodologies, and tools to inform the decision-making process for rational allocation of available resources and efficient prioritization of bridge maintenance and repair interventions. To face these needs, a research agreement between Regione Lombardia and Politecnico di Milano has been established in 2018 to define criteria and guidelines for maintenance and management of the regional roadway infrastructure. The project is aimed at developing a risk-based bridge maintenance prioritization methodology using available documentary sources of technical information and taking into account the impact of traffic delay and road network downtime. The proposed approach has been applied to a sample of about 400 bridges located along the main regional routes. Furthermore, to complement information from risk assessment, monitoring systems have been designed and implemented on nine exemplary bridges and are currently collecting data. This Special Session will report on the main research advances and application outcomes of the project, with emphasis on the development of the regional bridge inventory, implementation of the risk assessment and bridge prioritization procedure at regional scale, and exploitation of bridge monitoring results for optimal infrastructure management.