Progressive collapse of framed building structures: Current knowledge and future prospects

•Review of the state-of-art on progressive collapse.•Focus on frame structures (reinforced concrete, steel,...).•The influence of triggering events on progressive collapse is discussed.•Robustness techniques are compared.•Emphasis on the open or unsolved issues is paid. This paper reviews the state-...

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Bibliographic Details
Published in:Engineering structures 2020-03, Vol.206, p.110061, Article 110061
Main Authors: Kiakojouri, Foad, De Biagi, Valerio, Chiaia, Bernardino, Sheidaii, Mohammad Reza
Format: Article
Language:English
Subjects:
Catastrophic collapse
Collapse
Extreme events
Frame structures
Laboratory tests
Mathematical models
Multi-story buildings
Numerical methods
Progressive collapse
Robustness
Robustness (mathematics)
Structural failure
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Summary:•Review of the state-of-art on progressive collapse.•Focus on frame structures (reinforced concrete, steel,...).•The influence of triggering events on progressive collapse is discussed.•Robustness techniques are compared.•Emphasis on the open or unsolved issues is paid. This paper reviews the state-of-art in progressive collapse studies on framed building structures. Such types of failure start with a local damage which extension increases, up to the whole structure. First, emphasis is placed on the current techniques to study collapse propagation, i.e., numerical, experimental and analytical. In particular, the various numerical methods found in the literature are reported and discussed and the experimental studies and technologies involved in the laboratory tests are listed and compared. As reviewed, the method of analysis depends on the collapse mechanism and the triggering event. Thus, an in-depth review of the collapse typologies is proposed. Pure and mixed progressive collapse mechanisms are discussed and debated. The various triggering events, their modeling and their effects on the framed structures are examined. Details on the available literature on multi-hazard scenarios are provided. Finally, robustness techniques against progressive collapse are summarized, compared and contrasted. The paper concludes with an ambitious comprehensive list of open questions and issues covering different aspects of future needs.
ISSN:0141-0296
1873-7323
DOI:10.1016/j.engstruct.2019.110061