Vincenzo Macillo

• PhD in Construction Engineering
• University of Naples Federico II

The paper presents the functional and structural rehabilitation of an historical masonry building located in the old town of Naples, which is an UNESCO World Heritage Site. The building was initially built in the 16th century as monastery and in the 17th century it was achieved by the Prince Caracciolo of Avellino family, who made major modificatio...

The paper presents the functional and structural rehabilitation of an historical masonry building located in the old town of Naples, which is an UNESCO World Heritage Site. The building was initially built in the 16th century as monastery and in the 17th century it was achieved by the Prince Caracciolo of Avellino family, who made major modificatio...

The seismic performance of cold formed steel (CFS) strap-braced stud walls was evaluated in previous tests by monotonic and cyclic tests on full-scale specimens designed according to the elastic approach. Even if an elastic seismic design approach was followed, based on the experimental results, these walls exhibited a low but not negligible energy...

A research project was conducted at University of Naples “Federico II” over the last few years with the aim to give a contribute to overcome the lack of information on seismic behaviour of architectural non-structural lightweight steel (LWS) drywall components, i.e. indoor partition walls, outdoor façades and suspended continuous ceilings. The test...

An experimental program was performed for evaluating the seismic response and fragilities of nonstructural lightweight steel drywall partitions, also considering the interaction with structural elements and other nonstructural building components, ie, outdoor façade walls. Therefore, in-plane quasi-static reversed cyclic tests were carried out on 8...

In the past, the effort of the research was focused on the characterization and modelling of isolated CFS members or parts of building, but this cannot be enough for innovative structure, in which the sheathing panels interact with the steel framing providing the bracing effects against seismic actions. Therefore, in order to evaluate the seismic b...

Damages of non-structural components during a seismic event can involve risks for the human life, interruption of ordinary activities and significant economic losses. Therefore, the understanding of the seismic behaviour of non-structural components is a fundamental prerequisite for their use. In this context, a cooperation between the University o...

The unconventionality of the cold-formed steel (CFS) structures raised, in recent times, a lot of interest from many national and international companies resulting in the promotion of experimental activity with the main aim of investigating the seismic behaviour of these systems. In this perspective, a research project carried out at the University...

The objective of this paper is to describe the shake table tests and the numerical modelling of a cold-formed steel (CFS) building. The two-storey full scale building, named as ELISSA mock-up, was subjected to shake table tests at University of Naples "Federico II", as a part of the European project Energy efficient LIghtweight- Sustainable-SAfe st...

Cold-formed steel (CFS) members in buildings are in use for decades, but their earthquake performance remained unexplored, until recently. Eurocodes, which provide common approach for the design of buildings in Europe still lack the information on seismic design of CFS structures. However, for the last few years, University of Naples “Federico II”...

Building codes around the globe are in a transition to update their design guidelines to meet the objectives of performance based seismic design (PBSD). The fulfilment of the objectives of PBSD requires number of collapse simulations of a building equipped with certain type of seismic force resistant system. Numerical models with an ability to simu...

Shake table tests are particularly indicative to assess dynamic properties and seismic response under earthquakes in the case of a new building structure. In last years the University of Naples was involved in the research project named “Energy Efficient LIghtweight-Sustainable-SAfe-Steel Construction” (Project acronym: ELISSA), which was devoted t...

Among the several available building systems, constructions involving cold-formed steel (CFS) profiles represent an efficient and reliable solution. These systems are very suitable to be used in pre-fabricated modular constructions, thanks to their lightness and possibility to automate the building process. In a framework of the European project EL...

The objective of this paper is to describe the shake table tests and the numerical modelling of a cold-formed steel (CFS) building. The two-storey full scale building, named as ELISSA mock-up, was subjected to shake table tests at University of Naples "Federico II", as a part of the European project Energy efficient LIghtweight-Sustainable-SAfe ste...

The study presented herein is centred around the behaviour factor evaluation of cold-formed steel strap braced stud walls following the methodology of FEMA P695. A set of fourteen archetypes, are designed with an initial assumption of behaviour factor and following the capacity design approach. Numerical models possessing the ability to simulate th...

The seismic damage of non-structural components could involve functionality interruption of the most affected buildings and substantial economic losses. Among non-structural components, the lightweight steel ceiling-partition wall systems can represent a significant investment in the construction sector. Nevertheless, the proper seismic design of t...

Shake table tests are particularly indicative to assess dynamic properties and seismic response under earthquakes in the case of a new building structure. In last years the University of Naples was involved in the research project named “Energy Efficient LIghtweight-Sustainable-SAfe-Steel Construction” (Project acronym: ELISSA), which was devoted t...

An upgrade of the construction standards is required to promote the use of lightweight steel structures in seismic areas of Europe. European earthquake standard EN1998-1 does not provide seismic design guidelines for the energy dissipative structural typologies in lightweight steel constructions. CFS strap-braced stud wall is an all-steel solution...

The critical review of design methodologies provided by the NTC2008, in agreement with the European seismic code (Eurocode 8) for steel Concentrically Braced Frames with chevron (or inverted V) diagonals (CBF-V), carried out by deepening the seismic behaviour of such typical steel seismic resistant structures, aims to provide more efficient design...

Some experimental studies on the structural response of constructions made of cold-formed steel (CFS) profile are ongoing at University of Naples “Federico II”. Since the connections between panels and CFS frame have a fundamental role in the global response of CFS constructions, a specific task was devoted to test this kind of elements. In particu...

The critical review of design methods provided by the Italian codes for constructions NTC2008, in agreement with the European seismic code (EC8), for steel Concentrically Braced Frames (CBF) with X and chevron (or inverted V) diagonals, has the aim at providing more efficient design criteria able to ensure adequate safety levels under seism. As ref...

Among the several available building systems, constructions involving cold-formed steel profiles represent an efficient and reliable solution. These systems are very suitable to be used in pre-fabricated modular constructions, thanks to their lightness and possibility to automate the building process. In these systems, connections are usually made...

Climatic changes, massive catastrophic events-like earthquakes or fire blasts – and continuous changes in urban living habits make necessary the provision of building concepts that can reliably address these challenges. The ELISSA Project developed a solution for modular lightweight construction, which can offer excellent thermal and indoor comfort...

L’attuale interesse del mercato delle costruzioni sembra essere sempre più indirizzato a soluzioni integrate che rispondano ad una molteplicità di requisiti prestazionali, quali buon comportamento fisico/meccanico, facilità e velocità di esecuzione, elevato livello qualitativo e, fattore sempre più importante, economia del ciclo di vita. In quest’o...

The search for innovative methods to ensure high structural, technological and environmental performance is an important issue in the development of new constructions. Among the several available building systems, constructions involving the structural use of Cold-Formed Steel (CFS) profiles represent an efficient and reliable solution. In an effor...

The critical review of the design methodologies given in the European seismic code (Eurocode 8) for steel Concentrically Braced Frames with chevron (or inverted V) diagonals (CBF-V) has been the spark for deepening the seismic behaviour of such typical steel seismic resistant structures, aiming at providing more efficient design criteria able to en...

Past earthquakes have shown that the damage to non-structural elements can severely limit the functionality of most affected buildings and cause substantial economic losses compared to structural damage. Among the non-structural components, the ceiling-partition systems represent a significant investment in construction sector. Nevertheless, their...

Il danneggiamento sismico di componenti non-strutturali in caso di evento sismico può comportare l’interruzione di funzionalità degli edifici interessati e perdite economiche notevoli. Tra i componenti non-strutturali, i sistemi costituiti da partizioni e controsoffitti rappresentano un investimento significativo nel settore delle costruzioni. Tutt...

The use of cold-formed steel (CFS) profiles in low-rise residential buildings has increased in European construction sector. The reason of this interest is related to potentialities offered by this constructive system, which are the high structural performance, lightness, short construction time, durability and eco-efficiency. Nevertheless, the cur...

The development of light weight steel structures in seismic area as Italy requires the upgrading of National Codes. To this end, in the last years a theoretical and experimental study was undertaken at the University of Naples within the Italian research project RELUIS-DPC 2010–2013. The study focused on “all-steel design” solutions and investigate...

The wide choice of cross-sectional shapes obtainable by extrusion process provides the possibility to individuate new joining solutions for aluminium profiles. The achievable joining technologies are very competitive with respect to conventional solutions, because of the possibility of rapid execution, optimization of parent material, treatments an...

In the field of construction in seismic areas, the current Italian technical code for constructions NTC2008 is substantially based on the design criteria of Eurocode 8 (EC8), although with some differences. Focusing on steel structures with X Concentric Braces (CB), which is one of the most common seismic resistant structural typology in steel buil...

The development of light weight steel structures in seismic area as Italy requires the upgrading of National Codes. To this end, in the last years a theoretical and experimental study was carried out at the University of Naples within the research project RELUIS-DPC 2010-2013. The study focused on "all steel design" solutions and investigated the s...

Special joint systems are obtained by means of mechanical fasteners located in semi-hollow parts of aluminium extruded shapes. The aluminium industry showed great interest on these joints due to many advantages: easiness, simplicity, rapid execution, material optimisation and machining reduction. A typical case of these special joints, namely screw...

The widely recognized structural performance provided by cold-formed steel (CFS) systems together with high levels of prefabrication, safety, durability and sustainability are spreading the CFS construction systems all over the world. At the same time, the actual lack in European seismic design codes requires the development of specific design proc...

The important potentiality of cold formed steel (CFS) structures in terms of lightness, rapid on-site erection and high structural performance is spreading the use of this technology in the most industrialized countries. In particular, the overall recognized capability to assure a good structural response in high seismic areas is allowing the adopt...

The influence of the aspect ratio on the lateral response of cold formed steel walls is analyzed by three design methodologies. In particular the prediction provided by the AISI Lateral Design, that is at the moment the main document for the design of CFS buildings under horizontal loads, is compared with the results obtained by applying the princi...

The important potentiality of cold formed steel (CFS) structures in terms of lightness, rapid on-site erection and high structural performance is spreading the use of this technology in the most industrialized countries. In particular, the overall recognized capability to assure a good structural response in high seismic areas is allowing the adopt...

The paper focuses on the behaviour evaluation of sheathed Cold-Formed Steel Structures (SCFS). Basically, if Cold-Formed Steel (CFS) structures are designed according to the "sheathing-design" methodology, then the seismic behaviour of shear walls is strongly influenced by the sheathing-to-frame connections response, characterized by a remarkable n...