Survey of contemporary practices for disproportionate collapse prevention

Document identifier: oai:DiVA.org:ltu-75779
Access full text here:10.1016/j.engstruct.2019.109578
Keyword: Engineering and Technology, Civil Engineering, Other Civil Engineering, Teknik och teknologier, Samhällsbyggnadsteknik, Annan samhällsbyggnadsteknik, Mechanical Engineering, Other Mechanical Engineering, Maskinteknik, Annan maskinteknik, Progressive collapse, Structural robustness, Structural safety, Design practice, Träteknik, Wood Science and Engineering
Publication year: 2019
Relevant Sustainable Development Goals (SDGs):
SDG 11 Sustainable cities and communities
The SDG label(s) above have been assigned by OSDG.ai

Abstract:

This paper summarises contemporary practices and implementations of the existing codes and guidelines with respect to disproportionate collapse prevention. Here, focus is given to structural robustness, defined as the ideal method to decrease the probability of disproportionate collapse in buildings following an initial damage. The results from a global survey with 171 participants (mainly structural engineers) are presented. By comparing practices applied to different structural materials (steel, concrete and timber) and in different regions (Canada, USA, Europe, Australia/New Zealand), areas of improvements for the existing codes and guidelines as well as further research are identified. The results emphasise the importance of including specific recommendations for structural robustness in building codes, applicable to high importance and high occupancy structures. A performance-based approach is preferable, rather than prescriptive requirements, for practical and economic solutions. In addition, the obtained responses highlight the need to further develop the existing indirect and direct methods for disproportionate collapse prevention and structural robustness to include material-specific considerations.

Authors

Hercend Mpidi Bita

Wood Science, University of British Columbia, Canada
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Johannes Albert Josef Huber

Luleå tekniska universitet; Träteknik
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Konstantinos Voulpiotis

Institute of Structural Engineering, ETH Zurich, Switzerland
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Thomas Tannert

Wood Engineering, University of Northern British Columbia, Canada
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