Gian Michele Calvi
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View article: ERIES: Advancing frontier knowledge in earthquake, geotechnical and wind engineering through experimental research
ERIES: Advancing frontier knowledge in earthquake, geotechnical and wind engineering through experimental research Open
This contribution offers an overview of European collaborative efforts toward increased understanding and risk-focused mitigation strategies through the EU-funded ERIES (European Research Infrastructures for European Synergies, www.eries.e…
View article: Direct loss-based seismic retrofit of reinforced concrete frames
Direct loss-based seismic retrofit of reinforced concrete frames Open
In earthquake-prone areas, structures not compliant with modern design codes significantly contribute to seismic risk. Therefore, risk mitigation strategies (e.g., seismic retrofit) should be employed to reduce the expected economic and hu…
View article: Direct loss‐based seismic design of low‐rise base‐isolated reinforced concrete buildings
Direct loss‐based seismic design of low‐rise base‐isolated reinforced concrete buildings Open
This paper proposes a procedure to design low‐rise base‐isolated structures achieving a specific target level of earthquake‐induced loss (e.g., dollars, downtime) while complying with a predefined minimum level of structural reliability. T…
View article: The<scp>General Crack Component Model</scp>for reversed cyclic shear
The<span>General Crack Component Model</span>for reversed cyclic shear Open
A growing body of research has shown that reversed cyclic shear loading of reinforced concrete (RC) causes effects that are not accounted for in monotonic behavioral models. Notable among these effects are a reduction in shear strength and…
View article: Direct loss‐based seismic design of reinforced concrete frame and wall structures
Direct loss‐based seismic design of reinforced concrete frame and wall structures Open
This paper presents a procedure to design reinforced concrete (RC) buildings to achieve an acceptable target level of earthquake‐induced loss (e.g., deaths, dollars, downtime) under a site‐specific hazard profile. The procedure is called “…
View article: Numerical dynamic characterisation of concrete bridge stays
Numerical dynamic characterisation of concrete bridge stays Open
Following the recent collapse of a cable‐stayed bridge in Genoa, Italy, an interest has arisen to understand if it would have been possible for unknown localised material deterioration and/or decrease in prestress levels to introduce notic…
View article: Forensic estimation of the residual capacity and imposed demand on a ruptured concrete bridge stay at the time of collapse
Forensic estimation of the residual capacity and imposed demand on a ruptured concrete bridge stay at the time of collapse Open
Subsequent to a given structural collapse, forensic efforts aimed at identifying the root cause behind the observed failure are typically deployed, not only within the framework of responsibility seeking endeavours, but also, and perhaps m…
View article: Failure analysis of ageing RC bridges: The cases of the Polcevera viaduct and the Caprigliola bridge
Failure analysis of ageing RC bridges: The cases of the Polcevera viaduct and the Caprigliola bridge Open
Many existing bridges now have a life of more than 50 years and the recently occurred failures underline the need for many of these structures to be assessed and, if required, retrofitted, in order to avoid catastrophic collapses. The Appl…
View article: A performance‐based seismic loading protocol: The generated sequential ground motion
A performance‐based seismic loading protocol: The generated sequential ground motion Open
A realistic performance‐based seismic loading protocol called generated sequential ground motion (GSGM) has been developed in this paper. GSGM is a ground motion fabricated from segments of real recorded ground motions that could enable th…
View article: NONLINEAR ANALYSIS OF A LARGE RC CANTILEVER GRANDSTAND OF SAN SIRO MEAZZA STADIUM IN MILAN USING THE APPLIED ELEMENT METHOD
NONLINEAR ANALYSIS OF A LARGE RC CANTILEVER GRANDSTAND OF SAN SIRO MEAZZA STADIUM IN MILAN USING THE APPLIED ELEMENT METHOD Open
Stadiums may suffer from vibration serviceability problems when a large group of individuals in a crowd are involved in a coordinated motion due to their common light weight and adopted line of sight. Considering old stadium structures may…
View article: STRUCTURAL PERFORMANCE AND HUMAN COMFORT ASSESSMENT OF RC CANTILEVER GRANDSTANDS: THE CASE OF THE SECOND RING OF SAN SIRO MEAZZA STADIUM IN MILAN
STRUCTURAL PERFORMANCE AND HUMAN COMFORT ASSESSMENT OF RC CANTILEVER GRANDSTANDS: THE CASE OF THE SECOND RING OF SAN SIRO MEAZZA STADIUM IN MILAN Open
Reports from all over the world highlight that several stadiums with cantilever grandstand have shown problems due to excessive vibrations during soccer matches, requiring a more detailed and careful evaluation of the actual structural per…
View article: A Redefinition of Seismic Input for Design and Assessment
A Redefinition of Seismic Input for Design and Assessment Open
For several decades, seismologists and engineers have struggled to perfect the shape of design spectra, analyzing recorded signals and speculating on probabilities. In this process, several solutions have been proposed, including consideri…
View article: Shear Response under Reversed Cyclic Loading
Shear Response under Reversed Cyclic Loading Open
A series of three shear panels with transverse reinforcing ratios ranging from 0.23 to 0.68% were tested to failure under reversed cyclic loading. All of the tests showed a reduction in strength of at least 20% with respect to predictions …