Learning from the progressive collapse of buildings

Caredda, Giacomo; Makoond, Nirvan; Buitrago, Manuel; Sagaseta, Juan; Chryssanthopoulos, Marios K.; Adam, José M.

doi:10.1016/j.dibe.2023.100194

Cited by 10 publications

(5 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[34,35]. One of the most frequent causes (up to 65% of all cases) of initial damage of structures are design errors [36]. The use of calculation models of high LODs will reduce the number of design errors due to a more correct analysis of the frame behavior.…”

Section: Discussion and Further Investigation Prospectsmentioning

confidence: 99%

LOD of a Computational Numerical Model for Evaluating the Mechanical Safety of Steel Structures

Tusnina,

Alekseytsev

2023

Buildings

View full text Add to dashboard Cite

The article addressed the relevant problem of building information modeling. The suggestion was to introduce a BIM-based expert system into the design process. The proposed expert system encompasses the development of three levels of detail for a calculation model and digital interactive models of applicable regulatory documents. The proposed expert model has a modular structure, and it has a control module, a calculation scheme development module, a module for interaction with FEM solvers, and a module in charge of the database of interactive digital design standards. Standard operating conditions and non-standard emergency impacts are taken into account. The case of design standards for steel structures was used to describe the interaction between the expert system and the information model, and the characteristics and the structure of a digital model of a regulatory document. The data, calculated using the proposed LOD, were compared with the experimental findings. The structure of a real industrial building was designed, and its safety was evaluated. The proposed approach is a proven method applicable for designing safe bearing structures. In addition, their adequate deformation is most accurately taken account of at the stage of normal accident-free operation and in emergency situations.

show abstract

Section: Discussion and Further Investigation Prospectsmentioning

confidence: 99%

LOD of a Computational Numerical Model for Evaluating the Mechanical Safety of Steel Structures

Tusnina,

Alekseytsev

2023

Buildings

View full text Add to dashboard Cite

show abstract

“…In these situations, the implementation of these approaches can even result in collapsing parts of the building pulling down the rest of the structure 10 . The fact that several major collapses have occurred because of large initial failures 6 raises serious concerns about the inadequacy of the current robustness measures.…”

Section: Mainmentioning

confidence: 99%

“… Several catastrophic building collapses 1 – 5 occur because of the propagation of local-initial failures 6 , 7 . Current design methods attempt to completely prevent collapse after initial failures by improving connectivity between building components.…”

mentioning

confidence: 99%

“…However, increased connectivity can contribute to collapsing elements pulling down parts of a building that would otherwise be unaffected 10 . This risk is particularly important when large initial failures occur, as tends to be the case in the most disastrous collapses 6 . Here we present an original design approach to arrest collapse propagation after major initial failures.…”

mentioning

confidence: 99%

“…Disasters recorded from 2000 to 2019 are estimated to have caused economic losses of US$2.97 trillion and claimed approximately 1.23 million lives 11 . Most of these losses can be attributed to building collapses 12 , which are often characterized by the propagation of local-initial failures 13 that can arise because of extreme or abnormal events such as earthquakes [13][14][15][16] , floods [17][18][19][20] , storms 21,22 , landslides 23,24 , explosions 25 , vehicle impacts 26 and even construction or design errors 6,26 . As the world faces increasing trends in the frequency and intensity of extreme events 27,28 , it is arguably now more important than ever to design robust structures that are insensitive to initial damage 13,29 , irrespective of the underlying threat causing it.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Arresting failure propagation in buildings through collapse isolation

Makoond,

Setiawan,

Buitrago

et al. 2024

Nature

Self Cite

View full text Add to dashboard Cite

Several catastrophic building collapses1–5 occur because of the propagation of local-initial failures6,7. Current design methods attempt to completely prevent collapse after initial failures by improving connectivity between building components. These measures ensure that the loads supported by the failed components are redistributed to the rest of the structural system8,9. However, increased connectivity can contribute to collapsing elements pulling down parts of a building that would otherwise be unaffected10. This risk is particularly important when large initial failures occur, as tends to be the case in the most disastrous collapses6. Here we present an original design approach to arrest collapse propagation after major initial failures. When a collapse initiates, the approach ensures that specific elements fail before the failure of the most critical components for global stability. The structural system thus separates into different parts and isolates collapse when its propagation would otherwise be inevitable. The effectiveness of the approach is proved through unique experimental tests on a purposely built full-scale building. We also demonstrate that large initial failures would lead to total collapse of the test building if increased connectivity was implemented as recommended by present guidelines. Our proposed approach enables incorporating a last line of defence for more resilient buildings.

show abstract