A simplified analytical approach for CLT-based seismic retrofit of existing reinforced concrete structures

Bartolotti, Andrea; Smiroldo, Francesco; Giongo, Ivan

doi:10.1016/j.engstruct.2024.117964

Engineering Structures

2024

DOI: 10.1016/j.engstruct.2024.117964

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A simplified analytical approach for CLT-based seismic retrofit of existing reinforced concrete structures

Andrea Bartolotti,

Francesco Smiroldo,

Ivan Giongo

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Seismic Design and Analysis of a Cold-Formed Steel Exoskeleton for the Retrofit of an RC Multi-Story Residential Building

Meglio,

Formisano

2024

Applied Sciences

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The awareness of the vulnerability of existing structures under both seismic and energy perspectives highlights the need for integrated retrofit solutions that combine structural and thermal enhancements. From this perspective, this study explored the efficacy of the Resisto 5.9 Tube system, which is a seismic retrofit solution for masonry and reinforced concrete (RC) structures that also improves the energy performance by integrating a thermal coat integrated within its basic steel framework. This research involved application to a RC building of a design procedure specifically developed for this system that was aimed at facilitating its adoption by designers involved in seismic retrofitting analysis. After designing the system components, nonlinear static analyses were performed using finite element software to compare the building’s seismic performance before and after the application of the Resisto 5.9 Tube. The results demonstrate a significant increase in the seismic safety coefficient ζE from 0.26 to 0.42, which proved the potential of this intervention to enhance the seismic safety of existing RC buildings.

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Seismic Design and Analysis of a Cold-Formed Steel Exoskeleton for the Retrofit of an RC Multi-Story Residential Building

Meglio,

Formisano

2024

Applied Sciences

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A simplified analytical approach for CLT-based seismic retrofit of existing reinforced concrete structures

Cited by 1 publication

References 25 publications

Seismic Design and Analysis of a Cold-Formed Steel Exoskeleton for the Retrofit of an RC Multi-Story Residential Building

Seismic Design and Analysis of a Cold-Formed Steel Exoskeleton for the Retrofit of an RC Multi-Story Residential Building

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