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Robustness: key property of modern structures

机译：坚固性：现代结构的关键特性

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Recent developments of high-performance materials, construction technologies and methods of structural analysis facilitate design of increasingly complex and slender structures. These structures may be vulnerable to unfavourable effects of extreme events including man-made hazards. In most cases, failures of structures exposed to such events may hardly be completely prevented. However, for sufficiently robust structures, failure consequences can be significantly reduced and safety of occupants essentially increased. The paper summarises present achievements in present codes and technical literature. Appropriate structural models, exposure conditions and construction measures for design of new structures and assessment of existing structures are discussed. It appears that structural robustness can become a key concept in design of modern structures. Despite significance of structural robustness, its quantification and methods of assessment are not yet sufficiently developed and further improvements are urgently needed. Available experience indicates that decisions concerning structural robustness can be efficiently based on methods of risk assessment and on the theory of reliability.
机译：高性能材料，建筑技术和结构分析方法的最新发展促进了越来越复杂和细长结构的设计。这些结构可能容易受到包括人为危险在内的极端事件的不利影响。在大多数情况下，很难完全避免暴露于此类事件的结构失效。但是，对于足够坚固的结构，可以显着降低故障后果，并实质上提高乘员的安全性。本文总结了当前法规和技术文献中的当前成就。讨论了用于设计新结构和评估现有结构的适当结构模型，暴露条件和施工措施。看起来结构坚固性可以成为现代结构设计中的关键概念。尽管具有结构稳健性的重要性，但其量化和评估方法尚未充分发展，迫切需要进一步改进。现有经验表明，基于风险评估方法和可靠性理论，可以有效地进行有关结构坚固性的决策。

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