Life safety in the Reliability-Based design and assessment of structures

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Structural Safety Pub Date : 2024-02-23 DOI:10.1016/j.strusafe.2024.102453

Mahesh Pandey , Celeste Viljoen , Andrew Way , Katharina Fischer , Miroslav Sýkora , Dimitris Diamantidis , Raphaël D.J.M. Steenbergen , Niels Lind , Dan M. Frangopol , David Y. Yang , Johan V. Retief , João André , Jatin Nathwani , Roman Lenner

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Abstract

We review the developments in life safety and the incorporation thereof in the design and assessment of structures over the last 50 years. Various measures of life safety are presented that have been developed according to the marginal life saving cost principle based on individual, societal and economic considerations. Target probabilities of failure, or target reliabilities, are central to modern structural design and assessment. These are derived either through back-calibration to existing practice or through life cycle cost minimisation, both of which yield comparable safety levels, and are underpinned by lower bounds from life safety. Life cycle cost minimisation is reviewed here, which considers all direct and indirect costs of failure including loss of life and limb, as well as the costs and efficiency of increasing reliability. We discuss the incorporation of life safety into reliability-based design and assessment through the concept of the Life Quality Index, which uses key societal indicators, namely, the GDP and life expectancy, and health economics as a basis for specifying minimum reliabilities for both new and existing structures. The current state of advancement of reliability- and risk-informed design, and recommendations for future developments in life safety are considered.

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基于可靠性的结构设计和评估中的生命安全问题

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来源期刊

Structural Safety 工程技术-工程：土木

CiteScore

11.30

自引率

8.60%

发文量

审稿时长

53 days

期刊介绍： Structural Safety is an international journal devoted to integrated risk assessment for a wide range of constructed facilities such as buildings, bridges, earth structures, offshore facilities, dams, lifelines and nuclear structural systems. Its purpose is to foster communication about risk and reliability among technical disciplines involved in design and construction, and to enhance the use of risk management in the constructed environment