Safety, reliability, performance, resilience and sustainability of structures and infrastructure systems continue to provide emergent and key challenges to infrastructure risk management due to the frequent occurrence of natural and man-made disasters (such as earthquakes, hurricanes and tropical cyclones, tsunamis, terrorist attacks, and industrial accidents involving aviation and energy production), the infrastructure crisis and climate change. In addressing these problems, the analysis and management of uncertainties are unavoidable. The society can no longer afford to ignore congested roads, deficient bridges, aging dams, broken levees and water mains, among others. Furthermore, the importance of costs associated with managing existing structures, civil infrastructure and engineering systems in an era of finite resources is increasingly recognized. Decisions regarding requirements for design, continued service, rehabilitation or replacement, and management of risk should be based on optimization under uncertainty so as to balance conflicting requirements such as cost and performance.

For the five decades, the International Conference on Structural Safety and Reliability (ICOSSAR) organized by the International Association for Structural Safety and Reliability (IASSAR) has provided a valuable opportunity to share the knowledge, experience and information on structural safety, reliability and risk-informed decision-making among scientists and engineers. The first ICOSSAR was held in 1969 in Washington, D.C., USA. Since 1977, it has been successfully held every four years at several venues in Europe, USA and Japan, and has attracted many engineers in academia, industry, government and private practice. Previous ICOSSARs have been held in Washington, D.C., USA (1969), Munich, Germany (1977), Trondheim, Norway (1981), Kobe, Japan (1985), San Francisco, USA (1989), lnnsbruck, Austria (1993), Kyoto, Japan (1997), Newport Beach, USA (2001), Rome, Italy (2005), Osaka, Japan (2009), New York, USA (2013) and Vienna, Austria (2017).

The ICOSSAR 2021-2022 will be held in Shanghai, which is the economic center of China. This conference aims to bring together engineers, scientists, educators, researchers and practitioners to create a better understanding and management of safety, risk and reliability of structures and systems in the following fields: civil and structural engineering; mechanical engineering; aerospace engineering; marine/offshore engineering; industrial engineering; nuclear engineering; materials science; environmental engineering; architecture; urban planning; computer sciences; geosciences; social sciences.

We very much hope that ICOSSAR2021-2022 will provide all attendees with ample opportunities to exchange ideas and learn from one another about new concepts in structural safety and reliability.

Due to the persistent uncertainty regarding COVID-19, a decision has now been reached to hold the conference primarily in VIRTUAL format. Obviously, all of the papers will be assembled in an electronic web site allowing convenient retrieving and comprehensive citing of them. Further, for those participants who can be physically present at the conference site, additional options for presentation will be made available in the immediate future.

The registration for participation is open. Welcome to register by clicking on " Registration "!