Robustness assessment approaches for steel framed structures under catastrophic events

The current study deals with the robustness assessment methods of steel framed buildings under catastrophic events. Two steel framed buildings, designed according to old and new seismic Italian codes, have been herein analysed, by considering the uncertainties of both the material strength and the applied loads, through two investigation methods. First, within the methodologies used for robustness assessment under seismic loads, a deterministic method, framed within the Performance Based Seismic Design (PBSD), has been applied. Later on, the robustness of studied structures under different column-removed conditions, related to different catastrophic events (blast, impact, fire and so on), has been assessed by means of two forcebased analysis techniques (a literature approach and a more advanced procedure) in order to estimate their resistance against progressive collapse. The application of the two methods has allowed to calculate the robustness index of examined structures, by taking into account the influence of both the catenary effect phenomenon and different beam-to-column joints, with the final aim to show their behavioural difference in terms of robustness

Design aspects of the AB prototype in the Qiandao Lake

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Compared cost evaluation among traditional versus innovative strait crossing solutions

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Cable supported immersed inversed bridge: A challenging proposal

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The Conceptual Design of a Roadway SFT in Baja California, Mexico

Abstract The Submerged Floating Tunnel (SFT) is an innovative water crossing solution under development. It is considered convenient against conventional structures for wide and deep water crossings. SFT is environmentally friendly, as it is submerged, and cheap over long distances thanks to modularity. No SFT has been constructed yet, however many feasibility studies have been proposed worldwide. The improvement of offshore and tunnel engineering provides important tools for making SFT a reality in a near future. This paper describes the conceptual design of a SFT for crossing the Gulf of California linking the mainland of the northwest of Mexico to the Baja California peninsula. This represents a great challenge due to the severe environmental and territorial conditions, with distance longer than 100 km and sea depth up to 3 km. Together with structural and environmental design issues, leading to the selection of the location of the SFT, the cross section types, the anchorage and foundation systems, the access structures are defined also through a focus on the specific structural safety measures and safety equipment required for the tunnel service

Seismic analysis of a SFT solution for the Messina Strait crossing

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Sprawozdanie z I Spotkania Konsorcjum Akademickich Zakładów Studiów Strategicznych, Warszawa, 10 kwietnia 2017 r.

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Steel Dissipative Bracing Systems for Seismic Retrofitting of Existing Structures: Theory and Testing

Dottorato in Ingegneria delle Costruzioni, XX Ciclo, Università di Napoli Federico I