- Structural Engineering, Seismic Engineering, Steel Structures, Masonry structures, Seismic Base Isolation, Structural Design, and 22 moreDesign of Tall Buildings, Diagrid, Earthquake Engineering, Steel Construction, Skyscrapers, DIAGRID CONSTRUCTION, Porous Materials, Metal Foams, Architecture, Construction, Architectural Design, Metallic Foams, Daniel Libeskind, Environmental Sustainability, Martin Kemp, Architectural Geometry, Digital design, Digital Fabrication, Architectural History, Design Process (Architecture), Generative design, and Parametric Design (Architecture)edit
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... a constant axial load, corresponding to the effect of gravity loads plus seismic overturning, was ...connections either tested up to failure or taken off from actual steel MRF buildings ... Improvement of the cyclic performance was... more
... a constant axial load, corresponding to the effect of gravity loads plus seismic overturning, was ...connections either tested up to failure or taken off from actual steel MRF buildings ... Improvement of the cyclic performance was observed in the tests and maximum plastic rotations of ...
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ABSTRACTStructural configurations best addressing the traditional requirements of strength and stiffness for tall buildings are the ones employing the tube concept, whose efficiency, however, is strictly related to the involved... more
ABSTRACTStructural configurations best addressing the traditional requirements of strength and stiffness for tall buildings are the ones employing the tube concept, whose efficiency, however, is strictly related to the involved shear‐resisting mechanism. In this perspective, diagrid structures – the latest mutation of tube structures – show an extraordinary efficiency, related to the adopted geometrical pattern: thanks to the triangle tessellation of the façades, internal axial forces are largely prevalent in the structural members, thus shear lag effects and racking deformations are minimized. Being also adaptable to whatever surface, diagrid is becoming the most used structural solution for tall buildings of complex form. In this paper some specific design issues for diagrid structures are identified, namely: the relative importance of strength and stiffness design criteria, as well as to the need of secondary bracing systems for counteracting the inter‐module flexibility effects. Simplified procedure for dealing with such issues are proposed and design implications are discussed.
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... DOI: 10.1080/15583050802063741 Giovanni Cuomo a , Antonio De Luca ... The FB church buildings have been widely studied in order to grasp their seismic behavior, as reported in (Brandonisio et al., 20072. Brandonisio, G., De Luca, A.,... more
... DOI: 10.1080/15583050802063741 Giovanni Cuomo a , Antonio De Luca ... The FB church buildings have been widely studied in order to grasp their seismic behavior, as reported in (Brandonisio et al., 20072. Brandonisio, G., De Luca, A., de Lucia, R., Mele, E. and Santaniello, R ...
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... properties of the material lead to a widely non-linear behaviour whose prediction through numerical means can be very tricky, unless proper material parameters and solution strategy are provided. ... For this reason, a simplified... more
... properties of the material lead to a widely non-linear behaviour whose prediction through numerical means can be very tricky, unless proper material parameters and solution strategy are provided. ... For this reason, a simplified approximate procedure is proposed ...
Research Interests: Engineering, Civil Engineering, Structural Engineering, Computer Aided Design, Finite element method, and 12 moreStructures and Fire Engineering, Structural Analysis, Stress analysis, Arch, Case Study, Masonry, Structure Analysis, Application, Stress Analysis, Limit Analysis, Parametric Statistics, and Failure Mechanism
Research Interests: Engineering, Civil Engineering, Structural Engineering, Theory, Discrete Element Method, and 13 moreFinite element method, Structures and Fire Engineering, Sensitivity Analysis, Comparative Study, Numerical Method, Failure Analysis, Numerical Simulation, Case Study, Masonry, Experimental Tests, Mortar, Experimental Validation, and Experimental Data
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Sandwich foam beams, made of solid skins and aluminium foam core, are usually applied in high-tech engineering field while they are not yet adopted in civil structures. An initial, explorative study on the structural application of metal... more
Sandwich foam beams, made of solid skins and aluminium foam core, are usually applied in high-tech engineering field while they are not yet adopted in civil structures. An initial, explorative study on the structural application of metal foam is presented in this paper. The potentials of sandwich foam beams are studied through analytical models and parametric analyses; the sensitivity of the flexural response of the media to the total amount of pores and their spatial distribution are investigated. An analytical tool able to design functionally graded beams of metallic foam is presented and applied with reference some commercial aluminium foams. An experimental campaign is being planned to validate the presented results.
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This paper reports a study on the Intermediate Isolation System (IIS) applied to existing buildings. This kind of application is particularly suitable when a vertical addition is planned for buildings in seismic zones; in such a case, an... more
This paper reports a study on the Intermediate Isolation System (IIS) applied to existing buildings. This kind of application is particularly suitable when a vertical addition is planned for buildings in seismic zones; in such a case, an isolation system can be placed at the base of the extension to prevent the increase, or, better, to reduce the seismic demand on the existing structure. In previous works, parametric response spectrum analyses have been carried out on lumped mass models by varying the period of the isolation system. As a result, a sort of IIS design spectrum has been derived and used for selecting design solutions for the vertical extension that minimize the overall seismic response. In this paper, the above design indications are assessed in the light of nonlinear time history analyses, accounting for the hysteretic response of the existing structure and the nonlinear behaviour of the isolation system. The IIS configurations are analysed and the results are discuss...
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Background: Diagrid structures, widely used for the tall buildings of the third millennium, are characterized by a very effective behaviour in the elastic field due to the grid triangulation. In particular, under horizontal actions, axial... more
Background: Diagrid structures, widely used for the tall buildings of the third millennium, are characterized by a very effective behaviour in the elastic field due to the grid triangulation. In particular, under horizontal actions, axial forces and deformations mainly arise in the structural members of the diagrid, thus resulting in the reduction of the shear lag effect and racking deformations. The response to incremental horizontal actions beyond the plastic threshold, however, shows a poor plastic redistribution capacity, with consequent low values of global ductility, in spite of a significant design overstrength. Objective: In this paper, it is proposed to exploit the high elastic efficiency of the diagrid type and use a vibration control system, based on mass damping mechanism with large mass ratios, to reduce a priori the inelastic demands due to seismic actions. Methods: Starting from the analysis of the seismic behavior of archetype diagrid buildings, a case study is selec...
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In this paper the strength and deformation capacity of the main structural elements of a basilica church are studied via static nonlinear analysis. In particular, the nave arcades, the cross section at the triumphal arch and the end wall... more
In this paper the strength and deformation capacity of the main structural elements of a basilica church are studied via static nonlinear analysis. In particular, the nave arcades, the cross section at the triumphal arch and the end wall of chancel are analysed through FEM, using the general purpose software program ABAQUS. The push-over analyses performed on the main structural elements of the church provide useful information on the non-linear behaviour, the stress pattern, the collapse mode and the ultimate strength. These information are particularly valuable since the structural schemes herein analysed are very repetitive within basilica type churches, which represent a large portion of the Italian cultural heritage. The results, in terms of ultimate loads, have been compared with the collapse loads obtained through the application of the limit analysis. This comparison has allowed to demonstrate the capacity of ABAQUS code to provide reliable results and to investigate on the ...
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Sandwich foam beams and panels, made of solid skins and aluminium foam core, are widely applied in high-tech engineering fields; on the contrary structural use in the civil engineering field is not so common. An initial, explorative study... more
Sandwich foam beams and panels, made of solid skins and aluminium foam core, are widely applied in high-tech engineering fields; on the contrary structural use in the civil engineering field is not so common. An initial, explorative study on the structural application of metal foams in the civil and building engineering field is presented in this paper. The potentials of sandwich foam beams, made of solid skins (aluminium or steel) and aluminium foam core, are studied through analytical models and parametric analyses. The sandwich flexural response is investigated under four point bending test. For this purpose, an analytical tool able to provide design indications for sandwich foam beams is presented and applied in a parametric analysis, adopting some commercial aluminium foams and skins both in steel and aluminium alloys. The cross section failure modes under bending action (namely: skin fracture, core fracture, face wrinkling,) are studied, and failure mode maps are proposed for different combinations of solid-skins–foam-core in order to identify the dominant failure mode varying the skin thickness to beam depth ratio for practical design purposes. An experimental campaign is being planned to validate the presented results.
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ABSTRACT: In this paper, starting form a single case study, a contribution to the problem of modelling and analysis of churches under seismic action is provided. For this purpose, a basilica type church, the San Giovanni a Mare church,... more
ABSTRACT: In this paper, starting form a single case study, a contribution to the problem of modelling and analysis of churches under seismic action is provided. For this purpose, a basilica type church, the San Giovanni a Mare church, located in the historic centre of ...
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In this paper, a first insight into the role that non-conventional structural patterns might play in the design of tall buildings is presented. The idea is to explore the mechanical properties of selected non-conventional structural... more
In this paper, a first insight into the role that non-conventional structural patterns might play in the design of tall buildings is presented. The idea is to explore the mechanical properties of selected non-conventional structural patterns, in the form of both regular (Hexagrid) and irregular (Voronoi tessellation inspired) arrays, in order to assess their actual applicability in tall building design. For this aim, the concept of Representative Volume Element (RVE) and a classical homogenization-based micromechanical approach are employed for identifying the pattern units and deriving the relevant generalized stress-strain relationships. In the case of irregular patterns based on Voronoi diagrams, obtained by perturbing prescribed key geometrical features of hexagrids, a statistically significant sample of RVEs is defined on the basis of sensitivity analyses, and the related mechanical characterization is developed in statistical terms. Finally, a preliminary stiffness-based design procedure is proposed and applied to a tall building model with Voronoi exoskeleton. In conclusion, a discussion on the effectiveness of the design procedure and on the structural efficiency of the Voronoi patterns for tall buildings is presented.