Testing of Irregular Stone Masonry Strengthened with Cross-Laminated Timber

Rizzi, Ermes; Giongo, Ivan; Riccadonna, Daniele; Piazza, Maurizio

doi:10.1007/978-3-030-90788-4_78

Cited by 5 publications

(6 citation statements)

References 8 publications

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“…Two configurations of the non-structural layers were designed for each solution, acknowledging that the intervention could be applied to either the internal or external side of the masonry walls, see Figure 1. The selected thicknesses of the timber panels were compatible with those used the in-situ campaigns performed by [10][11][12], while the timber strong-back cross-sections were selected based on the experimental campaigns reported in [20][21][22].…”

Section: Retrofit Solutionsmentioning

confidence: 99%

“…Research contributions include a preliminary numerical analysis by Giongo et al [9], which involved masonry walls subjected to in-plane loading following their retrofitting with timber panels. Meanwhile, the properties of timber-to-masonry wall connections have been experimentally investigated by Riccadonna et al [10] and Rizzi et al [11], considering dry and adhesive connections, respectively. Additionally, Giongo et al [12] conducted full-scale onsite testing of masonry walls retrofitted with cross-laminated timber (CLT) panels, measuring 6 cm in thickness and fixed using the dry fasteners previously examined by Riccadonna et al [10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Timber-Based Strategies for Seismic Collapse Prevention and Energy Performance Improvement in Masonry Buildings

Cassol,

Danovska,

Prada

et al. 2023

Preprint

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This study investigates the effectiveness of a range of timber-based solutions for seismic and energy retrofitting of existing masonry buildings. These solutions are designed not only to prevent structural collapse during earthquakes but also to create integrated interventions that enhance thermo-physical performance and reduce emissions in existing buildings. Various case scenarios were considered and both mechanical and energetic behavior post-intervention were evaluated. Timber-engineered products serve as foundational components for the retrofit approach, encompassing one-dimensional vertical elements (strong-backs) and various types of panels (cross-laminated timber panels, laminated veneer lumber panels, and oriented strand board panels). The analyzed retrofit techniques share a common principle, involving the attachment of these timber-based elements to the building's wall surfaces through mechanical point-to-point connections. The proposed solutions integrate strong-backs and timber panels with membranes and insulation layers, yielding cohesive and highly effective interventions. Finite element modeling was employed to analyze the mechanical and thermal responses of the retrofitted walls. A comprehensive comparative analysis of various techniques was conducted to determine the most effective solution for each specific scenario.

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Section: Retrofit Solutionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Timber-Based Strategies for Seismic Collapse Prevention and Energy Performance Improvement in Masonry Buildings

Cassol,

Danovska,

Prada

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…This could be partly explained by the study of Pozza et al (2021) [36], which showed that the connection of URM and CLT panels at floor levels should be sufficient to ensure a good coupling degree. However, further study could include the adoption of adhesive connectors, which showed greater stiffness and strength than dry ones [39].…”

Section: Nested Building Intervention For Cattedra Case Studymentioning

confidence: 99%

“…The use of timber for retrofitting was also extended to URM walls. The coupling of the latter ones with strong-backs [31][32][33][34] or massive panels (CLT) [35][36][37][38][39] proved to be capable of improving both the in-plane (IP) and out-of-plane (OOP) performances of piers.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Intervention Strategies for Masonry Buildings Based on CLT Components

Salvalaggio

Valluzzi

2022

Heritage

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Unreinforced masonry has been for centuries one of the most widespread constructive techniques for both massive structures and civil buildings (e.g., palaces, hospitals, houses), for the most still standing nowadays. Their future conservation relies on (i) their protection from main natural threats (e.g., earthquakes) and (ii) updating to current functionality and hygrothermal standards. In the former framework, existing masonry buildings proved to have some intrinsic vulnerabilities, depending on composition (units and binder) and structural typologies. Based on experience gathered from seismic events, various retrofitting techniques have been proposed. In such a context, the use of cross-laminated timber (CLT) components is a very promising solution, in terms of compatibility with built heritage and integration of seismic and hygrothermal performances. This paper aims at improving the knowledge of the structural performances of compound timber–masonry interventions by numerical simulations carried out at (i) pier scale and (ii) building full scale via finite element modeling and nonlinear static analyses (pushover). First, a coupled timber–masonry wall was simulated and underwent sensitivity analyses with the properties of both components varying; then, the optimized solution was applied to a case study to assess the intervention benefits, and the results were also cross-checked with those of more traditional interventions (e.g., grout injections).

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“…Various authors in the literature on this topic have examined the mechanical performance of diverse timber-based retrofit solutions. Research contributions include experimental investigations of the properties of timber-to-masonry wall connections performed by Riccadonna et al [15] and Rizzi et al [16] considering dry and adhesive connections, respectively. Additionally, Giongo et al [17] conducted full-scale onsite testing of masonry walls retrofitted with cross-laminated timber (CLT) panels, measuring 6 cm in thickness and fixed using the dry fasteners previously examined by Riccadonna et al [15].…”

Section: Introductionmentioning

confidence: 99%

Timber-Based Strategies for Seismic Collapse Prevention and Energy Performance Improvement in Masonry Buildings

Cassol,

Danovska,

Prada

et al. 2024

Sustainability

Self Cite

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This study investigates the effectiveness of a range of timber-based solutions for the seismic and energy retrofitting of existing masonry buildings. These solutions are designed not only to prevent structural collapse during earthquakes but also to create integrated interventions that enhance thermo-physical performance and reduce emissions in existing buildings. Various case scenarios were considered and both mechanical and energetic behaviour post-intervention were evaluated. Timber-engineered products serve as foundational components for the retrofit approach, encompassing one-dimensional vertical elements (strong-backs) and various types of panels (cross-laminated timber panels, laminated veneer lumber panels, and oriented strand board panels). The analyzed retrofit techniques share a common principle involving the attachment of these timber-based elements to the building’s wall surfaces through mechanical point-to-point connections. The proposed solutions integrate strong-backs and timber panels with membranes and insulation layers, yielding cohesive, and highly effective interventions. Finite element modeling was employed to analyze the mechanical and thermal responses of the retrofitted walls. A comprehensive comparative analysis of various techniques was conducted to determine the most effective solution for each specific scenario.

show abstract

Testing of Irregular Stone Masonry Strengthened with Cross-Laminated Timber

Cited by 5 publications

References 8 publications

Timber-Based Strategies for Seismic Collapse Prevention and Energy Performance Improvement in Masonry Buildings

Timber-Based Strategies for Seismic Collapse Prevention and Energy Performance Improvement in Masonry Buildings

Optimization of Intervention Strategies for Masonry Buildings Based on CLT Components

Timber-Based Strategies for Seismic Collapse Prevention and Energy Performance Improvement in Masonry Buildings

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