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  • Seismic renovation (2)


  • publication (28) +-
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Found 36 results.

Apr, 29 2022 (v1) Poster Open Access

e-SAFE call for virtual pilot


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This is the flyer for the e-SAFE Call for Virtual Pilots, available in English, Romanian, Turkish, Bulgarian, Greek an Italian. e-SAFE is looking for multi-storey (at least three storeys) non historical buildings that are located in earthquake-prone areas in Europe and in need of renovation. Applications are open to building owners or building managers, public or private entities that administer social housing or public buildings, as well as real estate brokers.

Apr, 27 2022 (v1) Report Open Access

Deliverable D6.2 - Business Models and Financial Schemes: identification and development

Moran, Marianna;

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This report analyses various business models and financial schemes that will potentially be employed to commercialise the e-SAFE solutions.

After setting out the context, by providing an overview of e-SAFE’s mission and purpose, this report sets out the foundations for developing the core e-SAFE actors’ business model, namely e-IPR and e-FOUNDATION, utilising the business model canvas methodology.
e-IPR will be the entity managing the relationships with e-SAFE’s target market and business partners and receive all license/royalty revenue emanating from such relationships. As a result, e-IPR will be the core e-SAFE trading company, in charge of holding and developing e-SAFE assets and trading profits.
e-FOUNDATION will act as the funding, financing and advocacy vehicle of e-SAFE, aiming to make e-SAFE affordable to the target customer segments that are not able to proceed with conventional financing. To this end, it will develop an array of financial/funding tools and schemes, which will be made available through new or existing One-Stop Shops in key target locations. Further, it will play an important advocacy role, engaging with stakeholders to promote deep seismic and energy renovation more generally.

This report also explores the financial/funding schemes/tools that e-FOUNDATION may have in store for its potential customers on a high-level basis, i.e. a dedicated crowdfunding platform (e-CROWD) incorporating a peer-to-peer lending platform, direct financing options, green bonds, energy trading via smart contracts as well as financial and fiscal incentives. D6.3 “White Paper for policy engagement” complements this exercise by aiming to design adaptable financial and fiscal incentives to be included in a template White Paper, to be used for advocacy purposes by e-FOUNDATION.

Apr, 27 2022 (v1) Report Open Access

Deliverable D2.2 - 3D physical and digital models of the real pilot

D'Urso, Sebastiano; Rodonò, Gianluca; Nicolosi, Maria Grazia;

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The need to know the architectural features and the structural behaviour of the pilot building before applying the e-SAFE technology led to the construction of two distinct physical study models: (a) the architectural model and (b) the structural model. Both models were built on the same scale of representation (1:50). Moreover, the necessity to verify the reaction of the Reinforced Concrete (RC) structure to earthquake motions – with or without the application of e-SAFE technology (in particular e-CLT) – was satisfied with the construction of third model (c): a portion of the structural frame, representing a generic two-storey, one-bay RC frame. This latter model of the RC frame was made on a more detailed scale (1:10) by means of a 3D printer and it was implemented in two steps.

This Deliverable describes how the 3D physical and virtual models have been used for the knowledge of the pilot building and the control and sharing of the first design prefiguration.

Apr, 27 2022 (v1) Report Open Access

Deliverable D2.4 - Call for expression of interest for virtual pilots

Taranu, Victoria; Broer, Rutger;

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Ths Deliverable reports the text and the specifications provided in the call for expression of interest that aims to collect applications for two virtual pilots in the context of the H2020 project e-SAFE. The project aims to develop a market-ready solution for integrated seismic and energy renovation of non-historic buildings (i.e. built around 1950-1990) with reinforced concrete (RC) frame. In the context of the project, the system will be tested on a real pilot in Catania (Southern Italy) and two virtual pilots in Europe.

The choice of linking virtual pilots with a call for expression of interest is motivated by the need to match the design opportunities offered by e-SAFE with highly motivated early adopters, enhancing their capabilities and interests to act on deep renovation.
The building owners of the virtual pilots will benefit from receiving a 3D survey of the building, 3D physical and digital models, a survey of the energy consumptions and the potential energy savings and a detailed design of the energy-efficient and anti-seismic renovation solution, which will be defined through a co-design process that will actively involve owners and occupants.
The demonstration activity at the virtual pilots will end with the production of a detailed e-SAFE-based design, including the suggestion of possible viable financial schemes, according to the needs of the requesting entity. The demonstration activity does not include the actual implementation of the renovation works.
Owners or managers of multi-storey, non-historic buildings located in earthquake-prone areas in Europe are eligible. However, priority will be given to EU countries other than Italy, where the real pilot is being renovated. The public or private entities which administer social/public housing or public buildings (e.g. schools) are highly encouraged to apply, as well as private actors such as building owners and real estate brokers. The detailed eligibility conditions and application method are detailed in the call.
The current call is available in six languages: English, Turkish, Romanian, Greek, Italian and Bulgarian, these being the target countries of the call due to their relevant seismicity and different climatic conditions. The complete calls are available on the e-SAFE website. Additionally, other promotional material (flyers) was elaborated, with statistics adjusted to the target country (see Appendix 1).

Apr, 27 2022 (v1) Report Open Access

Deliverable D4.3 - e-SAFE DSS: first complete version (accompanying report)

Lazzaro Marilena; Melodia Enrico Gabriele; Roppolo Alessio;

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This report is the accompanying document of D4.3, i.e. the e-SAFE Decision Support System (DSS) first complete version that will be used during the co-design stage of the real pilot in Catania. Please refer to D4.2 to know more about the algorithms used in teh e-DSS.

The software code is stored in the ENG Gitlab repository at This is a repository hosted by ENG in order to manage and optimize the software delivery lifecycle, including all the development activities that are under ENG responsibility. The Gitlab project that was created for e-SAFE is compliant to a specific access policy aimed to prevent unauthorised users from gaining access to the software code; indeed, only ENG employees working on e-SAFE project have access to the e-SAFE project on Gitlab and this is compliant to the ENG policy.

Dec, 31 2021 (v2) Report Open Access

Deliverable D4.2 - Decision Support System (e-DSS) - Renovation space representational model

Lazzaro, Marilena; Evola, Gianpiero;

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This deliverable aims at providing the overall description model for the Decision Support System (e-DSS) that is conceived in e-SAFE as a tool to support the decision-making process in the co-design stage.
The great majority of the features and functions described in this report are already implemented in the first release of the e-DSS (Deliverable D4.3 and Milestone MS4): some of the features, and especially those concerning pilot buildings outside Italy, will be implemented in the second release of the e-DSS (due in March 2023) that will be exploited in the co-design stage of the virtual pilots.
More in detail, the Renovation Space representational model, that is conceived as the e-DSS data model, is updated to cover the computation of costs and time for both the e-SAFE envelope renovation solutions (e-CLT, e-PANEL) and technical systems (e-TANK and e-THERM). Instead, since the investigation about the features of e-EXOS is still ongoing, a small update of the data model is expected in the following months; this update will be formally reported in the accompanying document of the final version of e-DSS (D4.5), which is due at M30. Moreover, entities such as the Renovation Solution have been improved by the addition of new attributes, and a new entity Renovation Solution Intermediate Result is introduced to monitor and assess the overall calculation process.

Mar, 10 2022 (v1) Journal article Open Access

Experimental Cyclic Response of a Novel Friction Connection for Seismic Retrofitting of RC Buildings with CLT Panels

Boggian, Francesco; Tardo, Carola; Aloisio, Angelo; Marino, Edoardo; Tomasi, Roberto;

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The seismic vulnerability of existing RC framed buildings in seismic-prone areas requires affordable and practice-oriented solutions for their retrofitting. In this paper, the authors present a retrofitting solution for RC buildings based on the combined use of cross-laminated timber (CLT) panels and asymmetric friction connections (AFCs). The AFC connection is activated when the force level reaches the design threshold. The energy dissipation of the AFC increases the structural dissipation capacity and reduces the displacement demand. This research presents the outcomes of an experimental campaign on selected prototypes of these AFC connectors. The authors assess their dissipative capacity from cyclic load tests in four different connector arrangements and examine the contribution of aluminum shim layers. The first results highlight the significant dissipation potential of the AFC, although they also provide evidence of the notable sensitivity on the design and constructive details. The authors present a modeling approach to simulate the experimental results.

Feb, 24 2022 (v1) Report Open Access

Deliverable D5.1 - Detailed survey of the real pilot

D'Urso, Sebastiano; Evola, Gianpiero; Margani, Giuseppe; Marino, Edoardo Michele; Costanzo, Vincenzo; Barbagallo, Francesca; Nicolosi, Grazia Maria; Tardo, Carola;

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The report describes the existing state of the real pilot building, located in Catania, which will be renovated during the demonstration activities of the e-SAFE project. The document is the result of a survey activity that has concerned different aspects, including architectural issues, geometric issues, construction and energy issues, and structural issues. The results presented in this report are preliminary to the design of the renovation solutions that will be applied to the pilot building during the demonstration activity, and allowed understanding the main criticalities that must be considered during the design and the implementation stages

Feb, 16 2022 (v1) Journal article Open Access

Optimization of the structural coupling between RC frames, CLT shear walls and asymmetric friction connections

Aloisio, Angelo; Pelliciari, Matteo; Sirotti, Stefano; Boggian, Francesco; Tomasi, Roberto;

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This paper focuses on the optimum design of the e-CLT technology. The e-CLT technology consists in adding cross laminated timber (CLT) walls to an existing reinforced concrete (RC) inflled frame via asymmetric friction connection (AFC). The authors carried out quasi-static and nonlinear dynamic analyses. The RC frame is modeled in OpenSees by fber-section-based elements with force based formulation. The contribution of the infill is simulated using a degrading data-driven Bouc–Wen model with a slip-lock element while the AFC is modelled with a modified Coulomb model. Different types of infill, aspect ratio, scaling, and member size are considered. The benefits of using e-CLT technology are discussed and the ranges of optimum performance of the AFC are estimated. A comparison of the performance of traditional infill with the e-CLT system is presented. The authors provide optimum intervals of the ratio between slip force and in-plane stiffness of the CLT panel, following energy and displacement-based criteria. The seismic displacement demand under various seismic scenario is investigated. Correlations between the RC characteristics and the optimum design ratios bestow possible criteria for the design of the AFC

Jan, 21 2022 (v1) Journal article Open Access

Design of a novel seismic retrofitting system for RC structures based on asymmetric friction connections and CLT panels

Aloisio, Angelo; Boggian, Francesco; Tomasi, Roberto;

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Friction-based dampers are a valid solution for non-invasive seismic retrofitting interventions of existing structures, particularly reinforced-concrete (RC) structures. The design of friction-based dampers is challenging: underestimating the slip force prevents the full use of the potential of the device, which attains the maximum admissible displacement earlier than expected. By contrast, overestimating the slip force may cause delayed triggering of the device when the structure has suffered extensive damage. Therefore, designing the appropriate slip force is an optimization problem. The optimal slip force guarantees the highest inter-story drift reduction.

The authors formulated the optimization problem for designing a specific class of friction-based dampers, the asymmetric friction connection (AFC), devised as part of the ongoing multidisciplinary Horizon 2020 research project e-SAFE (Energy and Seismic AFfordable rEnovation solutions). The seismic retrofitting technology involves the external application of modular prefabricated cross-laminated timber (CLT) panels on existing external walls. Friction dampers connect the CLT panels to the beams of two consecutive floors. The friction depends on the mutual sliding of two metal plates, pressed against each other by preloaded bolts. This study determines the optimal slip force, which guarantees the best seismic performance of an RC structural archetype.

The authors investigate the nonlinear dynamic response of a coupled mechanical system (RC frame-friction damper) under a set of strong-motion earthquakes, using non-differential hysteresis models calibrated on the experimental cyclic responses. The solution of the optimization leads to the proposal of a preliminary simplified design procedure, useful for practitioners.