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H. Ahmadi, A. Dusi, J. Gough (2017) A Rubber-Based System for Damage Reduction in Infill Masonry Walls. Proceedings of 16th WCEE, Santiago del Chile - Jan. 9-13, 2017.

The paper describes an innovative composite rubber/masonry infill for minimizing earthquake damage to the masonry as well as controlling the seismic performance of the R.C. moment resisting structures by offering auxiliary energy dissipating capability to the building.


T.T. Or, P.L.Y. Tiong, A. Dusi (2017) A New Generation of High Damping Natural Rubber Bearings: Material Development, Testing and Applications. Proceedings of 16th WCEE, Santiago del Chile - Jan. 9-13, 2017.

This paper reports on the research and development activities carried out for the development of a new material, based on natural rubber, specially formulated to give a hysteresis damping of minimum 22% at design shear strain.


A. Dusi, M. Mezzi, T.T. Or (2017) Base Isolation in Seismic Retrofitting of R/C Buildings. Proc. ASEA-SEC-3 Conference: Integrated solutions for Infrastructure Development, ISBN: 978-0-9960437-3-1, Kuching, Sarawak, Malaysia, Oct. 31-Nov. 4, 2106.

The paper deals with the retrofitting of r/c buildings damaged by the earthquake adopting the base-isolation.


M. Giamello, F. Fratini, S. Mugnaini, E. Pecchioni, F. Droghini, F. Gabbrielli, E Giorgi, E. Manzoni, F. Casarin, A. Magrini, F. Randazzo (2016) Earth Masonries in the Medieval Grange of Cuna – Siena (Italy). J. Mater. Environ. Sci. 7 (10) (2016) 3509-3521, ISSN : 2028-2508, CODEN: JMESCN, .

The Grange of Cuna was the administrative and storage centre of the bigger farm of Santa Maria della Scala Hospital in Siena. Built from the early 14th century, the Grange is characterized by continuous development of the building until the second half of the 18th century. For his extraordinary state of preservation, its size and the internal organization of individual buildings, it is notable for being one of the finest and rare examples of fortified farm in the context of Italian and European Middle Ages.

This paper represents a first indication and reports a thorough investigation of walls built with earthy materials in this important medieval complex in Tuscany.


L. Peruzza, A. Saraò, C. Barnaba, P.L. Bragato, A. Dusi, S. Grimaz, P. Malisan, M. Mucciarelli, D. Zuliani and C. Cravos (2016) Teach & Learn seismic safety at high school: the SISIFO project. Bollettino di Geofisica Teorica ed Applicata DOI 10.4430/bgta0157, Vol. 57, n. 2, pp. 129-146; June 2016, .


M. Giamello, F. Fratini, S. Mugnaini, E. Pecchioni, F. Droghini, F. Gabbrielli, E Giorgi, E. Manzoni, F. Casarin, A. Magrini, F. Randazzo (2015) Earth Masonries in the Medieval Grange of Cuna – Siena (Italy). CIAT2015 Journal of Materials and Environmental Science, Marrakech, 7(10), 3509-3521.

 

 The Grange of Cuna was the administrative and storage centre of the bigger farm of Santa Maria della Scala Hospital in Siena. Built from the early 14th century, the Grange is characterized by continuous development of the building until the second half of the 18th century. For his extraordinary state of preservation, its size and the internal organization of individual buildings, it is notable for being one of the finest and rare examples of fortified farm in the context of Italian and European Middle Ages. At present a plan of restoration is under preparation, for whose completion many studies have been performed. The architectural survey, thanks to the accuracy of laser scanner technology added to a critical interpretation and data processing, represented the first knowledge of spatial and geometrical information and also gave a model useful to identify structural instabilities and deformations in order to direct the diagnostic phase. The stratigraphic investigations extended over the entire architectural complex made it possible to distinguish the historical constructive phases of the farm. Among the different masonries, fired brick masonries with earthen bedding mortars have been found in the original medieval nucleus, while rammed earth masonries plastered with lime mortar are present in some late medieval or post-medieval additions. Specific “in situ” investigations such as sonic and double flat jack tests were carried out on each masonry typology. Samples from the masonries with earthen bedding mortar and rammed earth were characterized in their mineralogical and petrographic features. This paper represents a first indication and reports a thorough investigation of walls built with earthy materials in this important medieval complex in Tuscany. Keywords: Earth masonry, Medieval building, Grange, Stratigraphic investigation, Mineralogical petrographic characterization, Mechanical test. 


M. Forni, A. Poggianti, R. Scipinotti, A. Dusi, E. Manzon &, M.G. Castellano (2015) Seismic-Initiated Event Risk Mitigation in Lead-Cooled Reactors: Main Results of the Siler Project. Proc. SECED 2015 Conference "Earthquake Risk and Engineering towards a Resilient World", Cambridge UK, 9-10 July, 2015.

This paper gives a general overview of SILER, a Collaborative Project funded within the 7th EC Framework Programme, aimed at studying the risks associated with seismic initiated events in Generation IV Heavy Liquid Metal reactors and developing adequate protection measures. In SILER, the attention is focused on the evaluation of the effects of earthquakes, with particular regard to unexpected (beyond design) events, and to the identification of mitigation strategies like seismic isolation. Specific sections of the paper are addressed to the design, development and testing of the isolators (High Damping Rubber Bearings and Lead Rubber Bearings) and the most critical interface devices like flexible joints for pipelines and joint-cover of the seismic gap.


S Dandria; F Gabbrielli; M Giamello; E Giorgi; A Magrini; E Manzoni; F Randazzo (2013) Grancia of Cuna: from the complexity of the historical building to a composed knowledge for the project. Built Heritage 2013 Monitoring Conservation Management, Milan, 99-106.

The Grancia of Cuna is located along the ancient Via Francigena (Via Cassia), a few hundred meters north of the town of Monteroni d’Arbia. The Grancia, notablefor its size, complexity and very good state of preservation, is one of thefi nest and rarest examples of a fortifi ed farm from the European Middle Ages.The brick complex consists of a small village surrounded by walls with gatesand towers. Within the walls is the actual farm and four storey granaries near the Palazzalti structure, which are accessed by a monumental partly covered ramp.

 

 


A. Masi, G. Santarsiero, M.R. Gallipoli, M. Mucciarelli, V. Manfredi, A. Dusi, T. Stabile (2013) Performance of the health facilities during the 2012 Emilia earthquake and analysis of the Mirandola Hospital case study. Bulletin of Earthquake Engineering DOI 10.1007/s10518-013-9518-4, .

This paper outlines the response of the healthcare system in the area mainly affected by the 2012 Emilia earthquake by drawing on specific surveys and information from local health authorities. A description of the damage suffered and characteristics of the healthcare system as a whole is offered initially, followed by a detailed description of the effects which took place at the Santa Maria Bianca hospital of Mirandola. The focus has been on damage to non structural elements and content, whose integrity is of primary importance for healthcare structures performance during and after a seismic event. Some instruments for the acquisition of accelerometric data were installed after the May 20 event both outside and inside a building which is part of the hospital complex. The seismic behavior of this building has also been analysed by means of a purposely made finite element model and on the basis of the recorded data. The contribution of undamaged and damaged masonry infills to the global seismic response has also been estimated thus providing some hints on the observed building performance.

 

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