Key Dates
  • Submission of proposals for minisymposia and organized sessions

    01 Aug. 2019 – 15 Mar. 2020
  • Review of proposals for minisymposia and organized sessions and notification of proposers

    16 Mar.  – 10 Apr. 2020
  • Submission of abstracts for minisymposia and organized sessions for review

    10 Apr. – 31 May. 2020 (Extended to 15 June 2020)
  • Submission of unsolicited abstracts for General Sessions for review

    10 April. – 30 Jun. 2020
  • Review of all abstracts

    01 Jul. – 30 Sep. 2020
  • Submission of full papers

    01 Oct. – 31 Dec. 2020
    (Extended to 31 Dec. 2021)
  • Review of full papers

    24 Jun. – 31 Jul. 2022
    (Extended to 10 Apr. 2022)
  • Registration with payment required for papers to be included in the conference proceedings

    24 Jun. – 15 Aug. 2022
  • Registration with payment required to be scheduled for presentation (including Early-bird registration 24 Jun. – 31 Jul. 2022)

    24 Jun. – 15 Aug. 2022
  • Registration for ICOSSAR 2021-2022  

    24 Jun. – 17 Sep. 2022
  • Upload of Lecture Video

    5 Aug. - 31 Aug. 2022
  • ICOSSAR 2021-2022!

    13 Sep. – 17 Sep. 2022

All the Opening Ceremony, Keynote Lectures, Early Career Lectures, IASSAR Awards Ceremony, Short Course Lectures for Engineers, and Closing Ceremony can be viewed in real time by clicking the links as follows:

14 September 2022:

15 September 2022:

16 September 2022:

17 September 2022:


Due to the uncertainty associated with COVID 19, a firm date has nor yet been selected for ICOSSAR 2025.

Nevertheless, institutions /individuals interested in hosting ICOSSAR 2025 should register their intent by sending a related electronic message--not to exceed one page-- to: Professor P. Spanos, Current Chair of IASSAR Board,

DEADLINE: 5 PM of September 5, 2022; local time at the proposing institution.


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 "!

IASSAR Executive Board
  • C. Bucher, TU Vienna, Austria
  • M. Di Paola, University of Palermo, Italy
  • B.R. Ellingwood, Colorado State University, USA
  • L. Graham-Brady, Johns Hopkins University, USA
  • J. Li, Tongji University, China (President of IASSAR) 
  • A. Naess, Norwegian University of Science and Technology, Norway
  • K.K. Phoon, National University of Singapore, Singapore (Vice President of IASSAR) 
  • P. Spanos, Rice University, USA (Chairman of the Executive Board) 
  • T. Takada, University of Tokyo, Japan 
Online Conference

ICOSSAR 2021-2022 Secretariat

Tongji University, 1239 Siping Road, Shanghai 200092, China    Email:

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