Earthquake-Safe and Energy-Efficient Infill Panels for Modern Buildings

Vailati, Marco; Monti, Giorgio; Gangi, Giorgia Di

doi:10.1007/978-3-319-62099-2_12

Cited by 7 publications

(6 citation statements)

References 1 publication

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“…For example, Petrus et al (2015) and Moșoarcă et al (2016) tested masonry made with a consolidation technique. Preti et al (2015) and Milanesi et al (2020) have tested infill systems made with sliding joints, and others (Silva et al 2016;Verlato et al 2016;Vailati et al 2018;Palieraki et al 2018) proposed infill walls with masonry enclosure systems with a possibility of including horizontal or vertical steel reinforcements. Such new infill systems were found to be very efficient in both IP and OOP loads.…”

Section: Overview Of the Experimental Campaigns In The Literaturementioning

confidence: 99%

Out-of-plane behaviour of unreinforced masonry infill walls: Review of the experimental studies and analysis of the influencing parameters

et al. 2021

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Section: Overview Of the Experimental Campaigns In The Literaturementioning

confidence: 99%

Out-of-plane behaviour of unreinforced masonry infill walls: Review of the experimental studies and analysis of the influencing parameters

et al. 2021

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“…On this last topic, the literature is wide and complex, particularly for the fact that the nonstructural elements, such as the infills, must maintain the integrity under earthquake effect. Some works related with this topic are Kibert [23], Vailati and Monti [24], Manfredi and Masi [25], and Vailati et al [26].…”

Section: Introductionmentioning

confidence: 99%

Optimization of a Combination of Thermal Insulation and Cool Roof for the Refurbishment of Social Housing in Southern Spain

Domínguez-Torres

Delgado

2021

Sustainability

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Social housing built in the middle of the last century in Spain suffers from poor thermal insulation conditions that cause situations of discomfort and energy poverty. For this reason, the energetic refurbishment of the envelope of this social building stock is necessary to overcome these situations and reduce energy consumption aimed at achieving interior comfort for its occupants. The goal of this work is to optimize a constructive solution that combines cool roof techniques with the use of thermal insulation applied to the refurbishment of the roof of buildings belonging to a quarter of social housing in Seville, Spain. The optimization analysis is based on the computation of the energy performance of the roofs when the energy retrofitting measure is applied, considering a variety of combinations of solar reflective coatings and insulation layer thickness, performing a dynamic analysis that accounts for the aging effect of the cool coats on the monthly roof energy performance and on the economic balance for the whole life cycle (LC) span. Economic and energy optimization analysis show that a suitable combination of cool roof emissivity and insulation layer thickness produces significant savings in the operational energy and in the economic profitability of the proposed retrofitting measure: the optimum combination obtained provides for the entire life cycle timespan an energy savings of 5.71 GJ/m2 and a cost savings equivalent to the 63.1% of the total costs when compared to the non-refurbished roof. The application of a time-dependent pattern for the changes on time produced by the aging effect on the cool roof emissivity, and its effects on the optimization of the combination of cool roof and insulation layer, can be considered novel in literature, both from an energy and an economic point of view.

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“…However, from the out-of-plane point of view, this strategy can highly increase the probability of collapse of the wall since the wall is not connected to the frame structure and the arching mechanism, which is one of the key aspects for the wall out-of-plane resistance. The disconnection of the wall from the surrounding structure can be achieved by using sliding devices [30,31]. This technique provides some capacity to the wall for dissipating energy and deforming, which is why these panels are called "engineered walls".…”

Section: Structural Retrofitting Techniquesmentioning

confidence: 99%

Interactions between Seismic Safety and Energy Efficiency for Masonry Infill Walls: A Shift of the Paradigm

et al. 2022

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Currently, the upgrade of existing reinforced concrete (RC) buildings focuses only on energy retrofitting measures due to the current policies promoted in the scope of the European Green Deal. However, the structural deficiencies are not eliminated, leaving the building seriously unsafe despite the investment, particularly in seismic-prone regions. Moreover, the envelopes of existing RC buildings are responsible for their energy efficiency and seismic performance, but these two performance indicators are not usually correlated. They are frequently analyzed independently from each other. Based on this motivation, this research aimed to perform a holistic performance assessment of five different types of masonry infill walls (i.e., two non-strengthened walls, two walls with seismic strengthening, and one wall with energy strengthening). This performance assessment was performed in a three-step procedure: (i) energy performance assessment by analyzing the heat transfer coefficient of each wall type; (ii) seismic performance assessment by analyzing the out-of-plane seismic vulnerability; (iii) cost–benefit performance assessment. Therefore, a global analysis was performed, in which the different performance indicators (structural and energy) were evaluated. In addition, a state-of-the-art review regarding strengthening techniques (independent structural strengthening, independent energy strengthening, and combined structural plus energy strengthening) is provided. From this study, it was observed that the use of the external thermal insulation composite system reduced the heat transfer coefficient by about 77%. However, it reduced the wall strength capacity by about 9%. On the other hand, the use of textile-reinforced mortar improved the strength and deformation capacity by about 50% and 236%, but it did not sufficiently reduce the heat transfer coefficient. There is a need to combine both techniques to simultaneously improve the energy and structural energy performance parameters.

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Earthquake-Safe and Energy-Efficient Infill Panels for Modern Buildings

Cited by 7 publications

References 1 publication

Out-of-plane behaviour of unreinforced masonry infill walls: Review of the experimental studies and analysis of the influencing parameters

Out-of-plane behaviour of unreinforced masonry infill walls: Review of the experimental studies and analysis of the influencing parameters

Optimization of a Combination of Thermal Insulation and Cool Roof for the Refurbishment of Social Housing in Southern Spain

Interactions between Seismic Safety and Energy Efficiency for Masonry Infill Walls: A Shift of the Paradigm

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