Conceptual design of integrated seismic and energy retrofit interventions

Menna, Costantino; Vecchio, Ciro Del; Ludovico, Marco Di; Mauro, Gerardo Maria; Ascione, Fabrizio; Prota, Andrea

doi:10.1016/j.jobe.2021.102190

Cited by 42 publications

(23 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to avoid such a kind of failure, different strengthening solutions can be found in literature [17,29,30]. However, it should be considered that recent financial incentives provided by the Italian government, consisting in 100% tax deduction of the cost of seismic strengthening interventions, exacerbated the need to have light strengthening intervention that can be applied to the structural system with a minimum level of disruption [31,32]. This will help the widespread of seismic strengthening interventions to large scale and may fulfill the needs to significantly improve the seismic response with the low disruption to occupants.…”

Section: Structural Damage and Retrofit Strategymentioning

confidence: 99%

Experimental Response and Numerical Modelling of Two-Storey Infilled Rc Frame

Vecchio¹,

Molitierno²,

Ludovico³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

Self Cite

View full text Add to dashboard Cite

Recent devastating earthquakes pointed out the high vulnerability of existing reinforced concrete (RC) buildings and the critical role of infills. The presence of stiff infills may significantly modify the lateral response of RC moment resisting frame buildings and cause severe damage on the surrounding RC members due to seismic actions transmitted at level of beamcolumn joints. Furthermore, due to their brittle response, they commonly exhibited severe damage often leading to high economic losses. In this context, effective seismic retrofit strategies should aim at both increasing the shear strength of RC members and reducing the damage to infills. However only few tests are available in literature addressing the seismic strengthening of existing RC frames accounting for the infill-to-structure interaction. To fill this gap a comprehensive experimental program of pseudo-dynamic tests on full-scale twostorey infilled RC frames has been designed and is currently ongoing at the full-scale laboratory testing of the University of Napoli Federico II. This paper reports the preliminary experimental results and numerical analyses carried out by using available non-linear models accounting for the infills contribution. The comparison between theoretical predictions and experimental results provides useful insights to improve the numerical models to reproduce the infill-to-strut interaction. Finally, a retrofit strategy to improve the seismic performance of the structural system and reducing the expected damage to infills is herein outlined.

show abstract

Section: Structural Damage and Retrofit Strategymentioning

confidence: 99%

Experimental Response and Numerical Modelling of Two-Storey Infilled Rc Frame

Vecchio¹,

Molitierno²,

Ludovico³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

Self Cite

View full text Add to dashboard Cite

show abstract

“…As part of integrated interventions, Menna et al [7] have investigated the structural, energy, and economic benefits of deep retrofit interventions on existing RC buildings in Italy. Different seismic interventions were considered, both at the local and global level, and several energy-efficiency measures, both regarding the envelope and the systems for the microclimatic control, were analyzed.…”

Section: Introductionmentioning

confidence: 99%

Energy, Environmental Impact and Indoor Environmental Quality of Add-Ons in Buildings

et al. 2022

View full text Add to dashboard Cite

On a European scale, the existing building stock has poor energy performance and particularly vulnerable structures. Indeed, most of the existing buildings were built before the introduction of energy standards and under structural safety criteria different from those currently required. It is therefore necessary the intervention in existing buildings according to an integrated approach that contemplates both the structural safety and the energy efficiency of buildings. This study, consistently with the objectives of the European research project “Proactive synergy of integrated Efficient Technologies on buildings’ Envelopes (Pro-GET-OnE)”, proposes a retrofit intervention for a student dormitory of the National and Kapodistrian University of Athens. The scope of the evaluation is to understand how an integrated intervention, that implies a structural and energy retrofit, as well as a spatial redistribution, leads to an improvement of the Indoor Environmental Quality (IEQ). In detail, the structural retrofit was performed through exoskeleton that leads to the addition of new living spaces and to a remodeling of the building facades. The energy retrofit regarded all three levers of energy efficiency, and thus the building envelope, the microclimatic control systems, and the systems from renewable sources. The integrated intervention, in addition to a reduction of energy demand, has led to advantages in terms of IEQ. Thermal comfort, both during summer and winter, is improved and the hours of suitable CO2 concentration pass from 34% in the pre-retrofit stage up to 100% in the post retrofit stage.

show abstract

“…Few examples of an integrated methodology have been developed in recent years; it can also be remarked that simultaneous investigations and modeling can optimize the costs for the design of the energetic and structural improvements [14]. For example, in [15], a methodology for characterizing seismic and energetic vulnerability of residential RC buildings by means of the fragility curves has been introduced, while Menna et al [16] proposed an integrated retrofit design methodology for the structural and energy improvement of existing school buildings. Moreover, multidisciplinary approaches for maximizing the benefit of integrated retrofit strategies have been proposed in [17,18].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Different Solutions for a Seismic and Energy Retrofit of an Auditorium

et al. 2021

View full text Add to dashboard Cite

The increasing attention paid to climate change has boosted scientific research in the matter of energy refurbishment of existing public buildings. However, the design of the intervention must be integrated with structural upgrading when the constructions are located in seismic zones. Indeed, in Italy, as in other seismically active countries, the structural damage, observed after earthquakes, underlines the increase in economic losses for buildings retrofitted only for energy saving. In this framework, the paper introduces an integrated approach for selecting retrofit actions aimed at improving both the seismic and energy performance, starting from a detailed in situ analysis with which dynamic energy and structural simulation models are constructed. The case study is an auditorium erected in 1982 with a reinforced concrete structure inside a masonry ring wall of an ancient building. A step-by-step analysis of each component role in the structural and energy performance of the building is proposed. The results indicate that the proposed approach can help to determine the best technical solution, and the integrated design leads to saving 10% of the cost of the works.

show abstract

Conceptual design of integrated seismic and energy retrofit interventions

Cited by 42 publications

References 31 publications

Experimental Response and Numerical Modelling of Two-Storey Infilled Rc Frame

Experimental Response and Numerical Modelling of Two-Storey Infilled Rc Frame

Energy, Environmental Impact and Indoor Environmental Quality of Add-Ons in Buildings

Comparison of Different Solutions for a Seismic and Energy Retrofit of an Auditorium

Contact Info

Product

Resources

About