1,721,264 research outputs found
Una procedura progettuale per la protezione sismica di telai in c.a. mediante controventi dissipativi
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Design of dissipative braces for an existing strategic building with a pushover based procedure
No full textThe research presented in this paper deals with the seismic protection of existing frame structures by means of passive
energy dissipation. An iterative displacement-based procedure, based on capacity spectrum, to design dissipative bracings for seismic
retrofitting of the frame structures is described, and some applications are discussed. The procedure can be used with any typology of
dissipative device and for different performance targets. In this work, the procedure has been applied, with both traditional pushover
(load profile proportional to first mode) and multimodal pushover, to an existing reinforced concrete (R.C.) frame building. In the
application, the buckling restrained braces have been used in order to prevent damages to both the structure and non structural elements.
The use of multimodal pushover proves to be more effective than pushover based on single mode in case of medium rise R.C. f rame
building (higher than 30 metres) but, once this building is retrofitted, and therefore regularized, with a bracing system, the difference
between using monomodal or multimodal pushover becomes insignificant
La progettazione con il Calcestruzzo Leggero Strutturale. Cap. IV del Manuale di Impiego del Calcestruzzo Leggero Strutturale.
No full textUn Programma di Calcolo per l'Analisi delle Strutture Precompresse Iperstatiche Seguendone la Storia Costruttiva e gli Interventi di Rinforzo.
No full text1981 L'influenza dell'Incertezza dei Parametri Geotecnici sulla Risposta Sismica delle Strutture.
No full textRepair of Industrial Buildings
No full textThe paper presents damages and intervention policies and techniques adopted to retrofit industrial precast buildings after the sequence of earthquake that struck Emilia Romagna region in summer 2012. The region had been classified as seismic in 2012 only, therefore most of the buildings had not been built with seismic provisions. Notwithstanding this fact, due to the relatively small seismic intensity, the largest part of modern reinforced concrete buildings did not suffer damages, while large damages happened to precast industrial buildings, as well as to part of cultural heritage
Alcuni Aspetti di Confronto nella Risposta Sismica di Strutture con Fondazioni a Platea o su Pali.
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