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Mr. Marco Lamperti Tornaghi
European Commission, Joint Research Centre (JRC), Directorate for Space, Security and Migration, Safety and Security of Buildings Unit, Via E. Fermi 2749, I-21027 Ispra (VA), Italy

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Research Keywords & Expertise

0 Earthquake Engineering
0 Advanced cementitious composite
0 Structural testing
0 Safety and sutainability of buildings
0 Precast concrete structures

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Precast concrete structures

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Short Biography

Marco Lamperti Tornaghi currently works at the European Commission - Joint Research Centre (JRC), in the unit Safety and Security of Buildings. Marco does research in Civil and Structural Engineering, with focus on the Earthquake Response of Precast Concrete Buildings and their connections; the integration between Safety and Sustainability; innovative building materials (Cement-based composites).

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Profile ImageNataša Kalaba (Department of Civil and Env...
Profile ImageGeorge Solomos European Commission
Profile ImageAlessio Caverzan European Commission, Joint R...
Profile ImageMarco di Prisco Politecnico di Milano, Depar...
Profile ImageLiberato Ferrara Department of Civil and Envi...
Profile ImagePaolo Negro European Commission, Joint R...
Profile ImageBruno Dallago Department of Economics and ...
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Journal article
Published: 18 June 2021 in Engineering Structures
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Full-scale testing of a two-storey flat slab structure is reported, undertaken in the SlabSTRESS research project; the construction and testing were planned and carried out at the ELSA laboratory of the European Commission’s Joint Research Centre. The dimensions are three bays by two, spans 4.5 and 5 m, slab thickness 0.2 m, interstorey height 3.2 m. Two different longitudinal reinforcement details were considered; welded studs shear reinforcement was provided only in the second floor slab. The testing program included seismic tests for service and ultimate actions, using the pseudodynamic technique with virtual walls. To this aim a building structure was designed with primary walls and the flat slab frame as secondary element. Cyclic loading tests followed up to ultimate drift capacity of the structure. The sequence of tests included strengthening of a set of damaged connections using bolted bars in holes drilled through the slab, followed by cyclic testing to failure. The instrumentation was provided for the global response and the connections with local rotations in the columns and slab; cracking around the columns was measured with through-crack sensors; a measurement system for internal forces and moments was included within the columns. The results show the response with deformations and damage for the different loading conditions up to failure. The results obtained on a full-scale structure extend and confirm the knowledge in the literature, mainly based on isolated connections and/or small-scale samples.

ACS Style

Dario Coronelli; Marco Lamperti Tornaghi; Luca Martinelli; Francisco-Javier Molina; Aurelio Muttoni; Ion Radu Pascu; Pierre Pegon; Marco Peroni; António Pinho Ramos; Georgios Tsionis; Teresa Netti. Testing of a full-scale flat slab building for gravity and lateral loads. Engineering Structures 2021, 243, 112551 .

AMA Style

Dario Coronelli, Marco Lamperti Tornaghi, Luca Martinelli, Francisco-Javier Molina, Aurelio Muttoni, Ion Radu Pascu, Pierre Pegon, Marco Peroni, António Pinho Ramos, Georgios Tsionis, Teresa Netti. Testing of a full-scale flat slab building for gravity and lateral loads. Engineering Structures. 2021; 243 ():112551.

Chicago/Turabian Style

Dario Coronelli; Marco Lamperti Tornaghi; Luca Martinelli; Francisco-Javier Molina; Aurelio Muttoni; Ion Radu Pascu; Pierre Pegon; Marco Peroni; António Pinho Ramos; Georgios Tsionis; Teresa Netti. 2021. "Testing of a full-scale flat slab building for gravity and lateral loads." Engineering Structures 243, no. : 112551.

Conference paper
Published: 27 November 2018 in IOP Conference Series: Materials Science and Engineering
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The construction industry, as a main energy consumer and a foremost contributor to greenhouse gas emissions, has been undergoing a "green revolution" in the recent years. Sustainability has become a prominent issue, and environmental methods such as footprint schemes and Life Cycle Analysis approaches are being considered in the design and in the rehabilitation of buildings. However, all environmental assessment methods are applied at a later design stage, to provide a final indication of the life cycle environmental performance. A more effective way would be to consider the environmental issues in the early design stage, along with structural reliability and safety, and the global performance indicator should be expressed in economic terms. The need for an integrated design approach, to tackle safety and sustainability together has been the object of a recent workshop, in which the acronym SAFESUST was introduced. SAFESUST is an acronym to mean SAFEty and SUSTainability. It also identifies a research work-package on impact of sustainability and energy efficiency requirements on building design and retrofit, being conducted by the European Commission - Joint Research Centre, as a part of the project Safe and Cleaner Technologies for Construction and Buildings. The SAFESUST approach has been implemented into a Sustainable Structural Design (SSD) method, which considers both environmental and structural parameters in a life cycle perspective. The integration of environmental data in the structural performance is the focus of the method. Structural performances are considered in a probabilistic approach, through the introduction of a simplified Performance Based Assessment method.

ACS Style

Alessio Caverzan; Marco Lamperti Tornaghi; Paolo Negro. Matching safety and sustainability: the SAFESUST approach. IOP Conference Series: Materials Science and Engineering 2018, 442, 012019 .

AMA Style

Alessio Caverzan, Marco Lamperti Tornaghi, Paolo Negro. Matching safety and sustainability: the SAFESUST approach. IOP Conference Series: Materials Science and Engineering. 2018; 442 (1):012019.

Chicago/Turabian Style

Alessio Caverzan; Marco Lamperti Tornaghi; Paolo Negro. 2018. "Matching safety and sustainability: the SAFESUST approach." IOP Conference Series: Materials Science and Engineering 442, no. 1: 012019.

Original research
Published: 18 June 2018 in Bulletin of Earthquake Engineering
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The traditional seismic design of precast frame buildings concerns the calculation of the frame, considering the cladding panels as non-structural added masses without stiffness, assuming they are connected so to not interact with the frame. Under seismic excitation, the cladding connections are subjected to complex multi-directional actions, depending on the panel static scheme, all of which involve relative motion between cladding and structure. The correct kinematics of these connections in decoupling the panels from the structure has rarely been demonstrated, and accidental coupling may result in dangerous sudden increase of forces and subsequent failure of the connections. This is also confirmed by post-earthquake field observations on precast structures, which are characterised by pronounced deformation under seismic loading due to their flexibility. An innovative panel-to-structure sliding connection conceived to allow for an effective cladding-structure decoupling has been tested to check its correct kinematics within a uniaxial test apparatus, imposing displacement histories with application of constant normal force. The experimental results of cyclic tests with a tailored test protocol are presented, and static and dynamic friction coefficients are experimentally evaluated. A cyclic test on a full-scale precast prototype equipped with sliding panel connections has been carried out, checking the global behaviour of such systems and their installation peculiarities. Design rules for the evaluation of seismic actions arising within the proposed panel arrangements are finally provided, accounting for the experimentally evaluated friction coefficients.

ACS Style

Bruno Dal Lago; Marco Lamperti Tornaghi. Sliding channel cladding connections for precast structures subjected to earthquake action. Bulletin of Earthquake Engineering 2018, 16, 5621 -5646.

AMA Style

Bruno Dal Lago, Marco Lamperti Tornaghi. Sliding channel cladding connections for precast structures subjected to earthquake action. Bulletin of Earthquake Engineering. 2018; 16 (11):5621-5646.

Chicago/Turabian Style

Bruno Dal Lago; Marco Lamperti Tornaghi. 2018. "Sliding channel cladding connections for precast structures subjected to earthquake action." Bulletin of Earthquake Engineering 16, no. 11: 5621-5646.

Journal article
Published: 30 March 2018 in Buildings
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The design of new buildings, and even more the rehabilitation of existing ones, needs to satisfy modern criteria in terms of energy efficiency and environmental performance, within the context of adequate safety requirements. Tackling all these needs at the same time is cumbersome, as demonstrated by several experiences during recent earthquakes, where the improvement of energy performance vanished by seismic-induced damages. The costs of energy retrofitting must be added to the normal losses caused by the earthquake. Even though the minimum safety requirements are met (no collapse), the damage due to earthquake might be enough to waste the investment made to improve energy efficiency. Since these measures are often facilitated by corresponding incentives, the use of public funding is not cost effective. The application of the existing impact assessment methods is typically performed at the end of the architectural and structural design process. Thus, no real optimisation can be achieved, because a good structural solution could correspond to a poor environmental performance and vice versa. The proposed Sustainable Structural Design method (SSD) considers both environmental and structural parameters in the life cycle perspective. The integration of environmental data in the structural performance is the focus of the method. Structural performances are considered in a probabilistic approach, through the introduction of a simplified Performance Based Assessment method. Finally, the SSD method is implemented with a case-study of an office-occupancy building, both for precast and cast-in-situ structural systems, with the aim to find the best solution in terms of sustainability and structural performance for the case at hand.

ACS Style

Marco Lamperti Tornaghi; Arian Loli; Paolo Negro. Balanced Evaluation of Structural and Environmental Performances in Building Design. Buildings 2018, 8, 52 .

AMA Style

Marco Lamperti Tornaghi, Arian Loli, Paolo Negro. Balanced Evaluation of Structural and Environmental Performances in Building Design. Buildings. 2018; 8 (4):52.

Chicago/Turabian Style

Marco Lamperti Tornaghi; Arian Loli; Paolo Negro. 2018. "Balanced Evaluation of Structural and Environmental Performances in Building Design." Buildings 8, no. 4: 52.

Journal article
Published: 01 December 2017 in Energy and Buildings
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New materials and techniques are increasingly developed to respond to the challenges posed by the need of reducing energy demand of buildings while keeping adequate answer to housing needs. The potential of Cement Based Composites (CBCs) panels in which a large amount Phase Change Materials (PCMs) is embedded have been explored in this study. To ensure that the use of the innovative product leads to an absolute reduction of the environmental impacts, the assessment of its environmental profile along life cycle stages and with multi-dimensional environmental indicators have been performed. The technological development of the CBCs panel have been supported by a tailored methodology made of the combination of the environmental and spatial assessment. Life Cycle Assessment at material and component level has been used through all the steps of the design process. As a result, the glycerine and fatty acids, by-products in the biodiesel production, resulted in having a great potential to substitute paraffin if they are secondary material (e.g. from the purification of waste cooking oil). The spatial assessment has been carried out, considering the climatic conditions of the first 50 most populated cities in the European Union. It allowed to identify the EU cities with the highest potential for PCMs application and the optimal configuration of the CBC panel (single or dual layer). When compared to sandwich panels available in the market, environmental benefits are expected from the use of PCMs when the insulating layer can be reduced by 25% without affecting the thermal performance.JRC.D.1-Bio-econom

ACS Style

Catia Baldassarri; Serenella Sala; Alessio Caverzan; Marco Lamperti Tornaghi. Environmental and spatial assessment for the ecodesign of a cladding system with embedded Phase Change Materials. Energy and Buildings 2017, 156, 374 -389.

AMA Style

Catia Baldassarri, Serenella Sala, Alessio Caverzan, Marco Lamperti Tornaghi. Environmental and spatial assessment for the ecodesign of a cladding system with embedded Phase Change Materials. Energy and Buildings. 2017; 156 ():374-389.

Chicago/Turabian Style

Catia Baldassarri; Serenella Sala; Alessio Caverzan; Marco Lamperti Tornaghi. 2017. "Environmental and spatial assessment for the ecodesign of a cladding system with embedded Phase Change Materials." Energy and Buildings 156, no. : 374-389.

Article
Published: 28 May 2017 in Structural Concrete
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Steel angles are extensively used to connect concrete floor/roof elements to the supporting beam in typical dry-assembled precast frame structures widely diffused in Europe and other parts of the world. These connections allow for relative rotations of the floor element in its vertical plane and restrain their relative displacement, avoiding possible loss of support and consequent fall of the floor element when the structure is subjected to lateral load. The diaphragm behavior of the precast decks relies on these floor-to-beam connections. Their postaddition to unconnected floor-to-beam joints of existing buildings is a typical seismic retrofit intervention. All these applications are often made without any adequate information about the main structural parameters of the connections due to lack of experimental or theoretical knowledge. An experimental campaign has been performed at Politecnico di Milano within the framework of the Safecast and ReLUIS research projects with the scope of characterizing the mechanical behavior of postinserted floor-to-beam connections made with hot-rolled angles, cold-formed angles, and welded sockets in the direction parallel to the floor element. The results of monotonic local tests on connectors and on the bolted connection with the floor rib and of cyclic and monotonic subassembly tests allowed the determination of the main structural parameters of the joints, including elastic stiffness, strength, displacement capacity, and hysteretic shape.

ACS Style

Bruno Dal Lago; Giandomenico Toniolo; Roberto Felicetti; Marco Lamperti Tornaghi. End support connection of precast roof elements by bolted steel angles. Structural Concrete 2017, 18, 755 -767.

AMA Style

Bruno Dal Lago, Giandomenico Toniolo, Roberto Felicetti, Marco Lamperti Tornaghi. End support connection of precast roof elements by bolted steel angles. Structural Concrete. 2017; 18 (5):755-767.

Chicago/Turabian Style

Bruno Dal Lago; Giandomenico Toniolo; Roberto Felicetti; Marco Lamperti Tornaghi. 2017. "End support connection of precast roof elements by bolted steel angles." Structural Concrete 18, no. 5: 755-767.

Journal article
Published: 25 April 2017 in Buildings
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The use of phase change materials (PCMs) in building elements has gained increasing popularity in recent years because of the potential energy savings that result from the heat stored during variable temperature–time histories. This paper describes the results of non-linear numerical analyses on sandwich panels characterized by different geometry and consisting of an innovative concrete, i.e., lightweight concrete with aggregates containing PCMs. The amount of embedded PCMs has no equal in the literature, and this calls for a detailed assessment of its thermal performance within a typical building element. The heat transfer process inside the panels is modelled via finite elements in order to evaluate the effectiveness of the addition of PCMs with regard to insulation. The results show that adding PCMs may significantly reduce (by up to 20%) the energy required for cooling in the hot season, while the reduction of the energy required for heating in the cold season is lower (up to 10%). Moreover, there is a significant reduction in the instantaneous power required, both for heating and cooling.

ACS Style

Patrick Bamonte; Alessio Caverzan; Nataša Kalaba; Marco Lamperti Tornaghi. Lightweight Concrete Containing Phase Change Materials (PCMs): A Numerical Investigation on the Thermal Behaviour of Cladding Panels. Buildings 2017, 7, 35 .

AMA Style

Patrick Bamonte, Alessio Caverzan, Nataša Kalaba, Marco Lamperti Tornaghi. Lightweight Concrete Containing Phase Change Materials (PCMs): A Numerical Investigation on the Thermal Behaviour of Cladding Panels. Buildings. 2017; 7 (4):35.

Chicago/Turabian Style

Patrick Bamonte; Alessio Caverzan; Nataša Kalaba; Marco Lamperti Tornaghi. 2017. "Lightweight Concrete Containing Phase Change Materials (PCMs): A Numerical Investigation on the Thermal Behaviour of Cladding Panels." Buildings 7, no. 4: 35.

Journal article
Published: 01 February 2017 in Engineering Structures
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The SAFECLADDING Project was aimed at improving the connection systems between cladding panels and precast RC buildings in seismic-prone areas. Three design criteria have been assessed: isostatic, dissipative and integrated. They can be realised using different design strategies, which are represented by several test setups within the experimental campaign. The paper describes the results obtained with vertical panels arrangement and the comparison with the bare frame, which is the reference for the current design practice that considers panels like non-structural elements. The mock-up and the test sequence were designed to assess all setups with a single frame structure. The mock-up was a one-storey building, made by two parallel frames with two bays and square columns, inserted into pocket plinths. The building was designed for earthquake actions according to the Eurocode 8. Each setup was assessed using increasing levels of action, either with cyclic or pseudo-dynamic tests. The latter were performed both for serviceability and ultimate limit states. The experimental programme for vertical-panels and the bare-frame arrangement involved ten different setups, resulting in a total of twenty-eight tests. As for the isostatic criterion, the results confirm that considering panels as simple masses without stiffness is far from the real system behaviour, even using apposite devices to uncouple panels and frame displacements. In fact, despite a previous and positive experimental qualification, several devices failed in operative conditions tests. Conversely, the integrated criterion requires to bear high loads, transferred by the frame through connections, which becomes the weak point for this configuration, as demonstrated by different failures of bolts and connections. The reliability of the dissipative criterion has been confirmed by twelve tests completed without any damage. This solution in fact combines lower relative displacements with limited loads within connections, avoiding both the compatibility problems and excessive forces.JRC.E.4-Safety and Security of Building

ACS Style

Paolo Negro; Marco Lamperti Tornaghi. Seismic response of precast structures with vertical cladding panels: The SAFECLADDING experimental campaign. Engineering Structures 2017, 132, 205 -228.

AMA Style

Paolo Negro, Marco Lamperti Tornaghi. Seismic response of precast structures with vertical cladding panels: The SAFECLADDING experimental campaign. Engineering Structures. 2017; 132 ():205-228.

Chicago/Turabian Style

Paolo Negro; Marco Lamperti Tornaghi. 2017. "Seismic response of precast structures with vertical cladding panels: The SAFECLADDING experimental campaign." Engineering Structures 132, no. : 205-228.

Original research paper
Published: 01 December 2016 in Bulletin of Earthquake Engineering
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Silicone sealant is usually interposed between panels of precast façades. In ordinary cladding panel configurations, relative sliding between panels occurs under lateral actions. The shear drifts and consequent stresses arising in the silicone strips may lead to a significant increase of the load demand in the cladding panel connections and affect the seismic behaviour of the structural system. This paper presents the results of experimental tests and numerical analyses carried out to clarify the role of the silicone sealant on the seismic response of precast structures with cladding panels. An experimental campaign including monotonic and cyclic tests on both silicone strips applied to small concrete blocks and two panel sub-assembly sealed with silicone, has been developed at Politecnico di Milano. Furthermore, cyclic and seismic pseudo-dynamic tests on a full-scale prototype of precast building with cladding panels sealed with silicone, have been performed at the Joint Research Centre of the European Commission. The results of the experimental tests are presented and compared with the results of numerical simulations. Some recommendations for seismic design of precast frame structures with cladding panels, considering the effect of silicone sealant, are finally provided.

ACS Style

Bruno Dal Lago; Fabio Biondini; Giandomenico Toniolo; Marco Lamperti Tornaghi. Experimental investigation on the influence of silicone sealant on the seismic behaviour of precast façades. Bulletin of Earthquake Engineering 2016, 15, 1771 -1787.

AMA Style

Bruno Dal Lago, Fabio Biondini, Giandomenico Toniolo, Marco Lamperti Tornaghi. Experimental investigation on the influence of silicone sealant on the seismic behaviour of precast façades. Bulletin of Earthquake Engineering. 2016; 15 (4):1771-1787.

Chicago/Turabian Style

Bruno Dal Lago; Fabio Biondini; Giandomenico Toniolo; Marco Lamperti Tornaghi. 2016. "Experimental investigation on the influence of silicone sealant on the seismic behaviour of precast façades." Bulletin of Earthquake Engineering 15, no. 4: 1771-1787.

Original research paper
Published: 16 September 2016 in Bulletin of Earthquake Engineering
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Dry-assembled precast concrete frame structures are typically made with dowel beam-to-column connections, which allow relative rotation along the beam direction. In the orthogonal direction the rotation of the beam is prevented but again the connections of the superimposed floor elements allow for relative rotation. All the ductility and energy dissipation demand in case of seismic action is therefore concentrated at the base of cantilever columns. Hence, the column-to-foundation connection plays a key role on the seismic performance of such structures. Mechanical connection devices, even if correctly designed for what concerns resistance, may affect the behaviour of the whole joint modifying the ductility capacity of the columns and their energy dissipation properties. An experimental campaign on different mechanical connection devices has been performed at Politecnico di Milano within the Safecast project (European programme FP7-SME-2007-2, Grant agreement No. 218417, 2009). The results of cyclic tests on full scale structural sub-assembly specimens are presented. Design rules are suggested for each of the tested connections on the basis of the experimental observations, and numerical analyses have been performed with hysteretic parameters calibrated on the experimental loops. The seismic performance of structures provided with those connections is investigated through a case study on a multi-storey precast building prototype, which has also been subject to full-scale pseudo-dynamic testing within the same research project at the European Laboratory of Structural Assessment of the Joint Research Centre of the European Commission. The comparison of the results from the structure provided with the different studied connections clearly highlights how some solutions may lead to both reduction of ductility capacity and dissipation of energy, increasing the expected structural damage and the seismic risk.

ACS Style

Bruno Dal Lago; Giandomenico Toniolo; Marco Lamperti Tornaghi. Influence of different mechanical column-foundation connection devices on the seismic behaviour of precast structures. Bulletin of Earthquake Engineering 2016, 14, 3485 -3508.

AMA Style

Bruno Dal Lago, Giandomenico Toniolo, Marco Lamperti Tornaghi. Influence of different mechanical column-foundation connection devices on the seismic behaviour of precast structures. Bulletin of Earthquake Engineering. 2016; 14 (12):3485-3508.

Chicago/Turabian Style

Bruno Dal Lago; Giandomenico Toniolo; Marco Lamperti Tornaghi. 2016. "Influence of different mechanical column-foundation connection devices on the seismic behaviour of precast structures." Bulletin of Earthquake Engineering 14, no. 12: 3485-3508.

Conference paper
Published: 07 September 2015 in EPJ Web of Conferences
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In this work a particular cement composite material for protection of structures and infrastructures against accidental actions, such as blast or impact, has been investigated. An experimental procedure has been developed in order to assess static and dynamic behaviour of energy absorbing cementitious composites. The granular cementitious composite has been studied focusing attention to compressive strength, high deformation and energy dissipation capacity which are important characteristics for an absorber material. An experimental characterization of the material behaviour under compressive static and dynamic loadings has been carried out. Different deformation velocities have been studied in order to define the material behaviour in a wide range of strain rates. The velocity range up to 0.1 m/s is investigated by means of a universal servo-hydraulic MTS 50 kN testing machine. Some preliminary results have been reported and discussed in the present work.

ACS Style

Alessio Caverzan; Marco G.L. Lamperti Tornaghi; Marco Peroni; George Solomos. Dynamic behaviour of “Collapsible” concrete. EPJ Web of Conferences 2015, 94, 1016 .

AMA Style

Alessio Caverzan, Marco G.L. Lamperti Tornaghi, Marco Peroni, George Solomos. Dynamic behaviour of “Collapsible” concrete. EPJ Web of Conferences. 2015; 94 ():1016.

Chicago/Turabian Style

Alessio Caverzan; Marco G.L. Lamperti Tornaghi; Marco Peroni; George Solomos. 2015. "Dynamic behaviour of “Collapsible” concrete." EPJ Web of Conferences 94, no. : 1016.

Conference paper
Published: 01 January 2015 in IABSE Conference, Geneva 2015: Structural Engineering: Providing Solutions to Global Challenges
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Current environmental assessment methods evaluate buildings for their life-cycle at a later design stage, providing an indication of their environmental performance. At that stage the environmental information cannot be effectively used in the general design process, whereas the sole aspect of the environmental performance cannot provide comparable building solutions. The Sustainable Structural Design (SSD) method, here introduced, considers environmental and structural parameters with a life-cycle approach. The integration of environmental data in the structural performance is the focus of this method, structural performances are considered as a probabilistic variable, through the introduction of a simplified Performance-Based Assessment method. The SSD method is implemented in a case study of a commercial building both for cast-in-situ and precast structure solutions.

ACS Style

Kassiani Tsimplokoukou; Marco Lamperti Tornaghi; Paolo Negro. A Sustainable Structural Design method to analyse structural and environmental performances of a building. IABSE Conference, Geneva 2015: Structural Engineering: Providing Solutions to Global Challenges 2015, 1 .

AMA Style

Kassiani Tsimplokoukou, Marco Lamperti Tornaghi, Paolo Negro. A Sustainable Structural Design method to analyse structural and environmental performances of a building. IABSE Conference, Geneva 2015: Structural Engineering: Providing Solutions to Global Challenges. 2015; ():1.

Chicago/Turabian Style

Kassiani Tsimplokoukou; Marco Lamperti Tornaghi; Paolo Negro. 2015. "A Sustainable Structural Design method to analyse structural and environmental performances of a building." IABSE Conference, Geneva 2015: Structural Engineering: Providing Solutions to Global Challenges , no. : 1.

Conference paper
Published: 01 January 2015 in IABSE Conference, Geneva 2015: Structural Engineering: Providing Solutions to Global Challenges
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An exploratory research project, granted by European Commission - Joint Research Centre, called Eco-Energy Efficient Envelopes for innovative Buildings (E4iBuildings), has been recently started. The research project investigates and develops innovative products based on cement composites for building envelopes, studies the feasibility and the impact of different solutions based on Phase Change Materials (PCMs), through the assessment of mechanical and thermal properties. The paper presents the aims of the experimental activities ongoing at Joint Research Centre, and in particular the matters related to: performance analysis on three PCM families, methods for macro-encapsulation and thermo-physical characterisation of the innovative building material.

ACS Style

Marco Lamperti Tornaghi; Alessio Caverzan. Energy-Efficient Building Envelopes: use of Phase Change Materials in Cement-Based Composites. IABSE Conference, Geneva 2015: Structural Engineering: Providing Solutions to Global Challenges 2015, 1 .

AMA Style

Marco Lamperti Tornaghi, Alessio Caverzan. Energy-Efficient Building Envelopes: use of Phase Change Materials in Cement-Based Composites. IABSE Conference, Geneva 2015: Structural Engineering: Providing Solutions to Global Challenges. 2015; ():1.

Chicago/Turabian Style

Marco Lamperti Tornaghi; Alessio Caverzan. 2015. "Energy-Efficient Building Envelopes: use of Phase Change Materials in Cement-Based Composites." IABSE Conference, Geneva 2015: Structural Engineering: Providing Solutions to Global Challenges , no. : 1.

Journal article
Published: 20 February 2013 in Materials and Structures
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Experimental identification of the tensile constitutive behaviour of fibre reinforced cementitious composites represents a foremost step in design approaches for structural elements made with this kind of advanced construction materials. To this purpose, international standards and guidelines recommend either direct tension or/and bending tests, coupled with an inverse analysis procedure, both featuring pros and cons which have been exhaustively highlighted and discussed in these last years. The tremendous developments of self compacting fibre reinforced concretes have furthermore highlighted the need of duly taking into account, within the aforementioned identification procedure, the likely flow-induced alignment of fibres with the applied tensile stress. In this paper a novel experimental testing technique, called double edge wedge splitting test, has been presented and validated, also by means of nonlinear finite element analysis. The test, as it will be shown, is able to yield directly, i.e. with no need for back analysis, the tensile stress versus crack opening “constitutive relationship” of the material, though performing an “indirect” test, i.e. by applying a compressive load to the specimen. Both the simplicity of the indirect tensile testing technique and the straightforwardness of the identification procedure surely represent a distinctive and extremely attractive characteristic of the proposed test. Furthermore, the test features a compact specimen geometry, which can be even easily “cored” from existing structures, and a “notch preordained” fracture plane, which can be aligned to any desired angle with respect to the expected flow-induced fibre orientation. This makes the proposed test suitable for a thorough characterization of the influence of fibre orientation on the material constitutive behaviour, as it may be required by a casting process tailored to the intended applications.

ACS Style

Marco Di Prisco; Liberato Ferrara; Marco Lamperti Tornaghi. Double edge wedge splitting (DEWS): an indirect tension test to identify post-cracking behaviour of fibre reinforced cementitious composites. Materials and Structures 2013, 46, 1893 -1918.

AMA Style

Marco Di Prisco, Liberato Ferrara, Marco Lamperti Tornaghi. Double edge wedge splitting (DEWS): an indirect tension test to identify post-cracking behaviour of fibre reinforced cementitious composites. Materials and Structures. 2013; 46 (11):1893-1918.

Chicago/Turabian Style

Marco Di Prisco; Liberato Ferrara; Marco Lamperti Tornaghi. 2013. "Double edge wedge splitting (DEWS): an indirect tension test to identify post-cracking behaviour of fibre reinforced cementitious composites." Materials and Structures 46, no. 11: 1893-1918.