1,721,218 research outputs found
Foreword to the Special Issue for the RINTC (The Implicit Seismic Risk of Code-Conforming Structures) Project
No full textDirect Displacement-Based Design of Seismically Isolated Bridges
No full textA Displacement-Based Design (DBD) procedure for bridges equipped with different seismic Isolation Systems (IS’s) is proposed. It has been derived from the Direct DBD method recently developed by Priestley and co-workers. The key aspect of the proposed procedure is the definition of a uniform target displacement of the deck, which is assigned by the designer to accomplish a given performance level, expressed through limit values of the maximum IS displacement and of the pier drift, respectively. The proposed design procedure has been developed for four different idealized force-displacement cyclic behaviours
of IS’s, which can be used to describe the response of a wide variety of IS’s, including: (i) Lead-Rubber Bearings (LRB), (ii) High-Damping Rubber Bearings (HDRB), (iii) Friction Pendulum Bearings (FPB), (iv) Combinations of either Low-Damping Rubber Bearings (LDRB) or FPB and Viscous Dampers (VD), (v) Combinations of lubricated Flat Sliding Bearings (FSB) and LDRB, (vi) Combinations of FSB and Steel Yielding Devices (SYD), (vii) Combinations of FSB, Shape Memory Alloy (SMA)-based Re-centring Devices and VD. In the paper, the background and implementation of the design procedure is presented first, then some validation studies through nonlinear time-history analyses on different configurations of continuous deck and multi-span simply supported deck bridges are illustrated
STRATEGIE DI SVILUPPO SOSTENIBILE PER LE COSTRUZIONI IN CINA IN EUROPA E IN ITALIA PER LA RICOSTRUZIONE DOPO IL TERREMOTO DELL’AQUILA DEL 6 APRILE 2009 SUSTAINABLE DEVELOPMENT STRATEGIES FOR CONSTRUCTIONS IN EUROPE AND CHINA
No full textProteggersi dai terremoti: le moderne tecnologie e metodologie e la nuova normativa sismica
No full textI terremoti non si possono prevedere con precision
Deciding (Or not) on the acceptable level of seismic risk: First behavioural considerations on the L’Aquila trial
No full textThis work analyses the issue of the acceptable level of risk in the civil protection field from a behavioural perspective. Choosing the acceptable level of risk for a community is a task that political decision-makers are charged with. However, it so happens that politicians do not manage to accomplish this. The reasons for this and some possible solutions have been broached by Di Bucci and Savadori (2018). Starting from that paper, this work aims at proposing some preliminary reasoning on the so-called L’Aquila trial, which involved scientists and Civil Protection officers after the 6 April 2009 Abruzzo earthquake (Italy). Behavioural sciences provide a key to understanding what happened through heuristics and biases that affected all the actors in this story, including the local population, the media, and judiciary, in the frame of coming to no practical decision about the acceptable level of risk. The conclusion is that scientific, technical, and professional communities could and should foster the awareness of people, the media, and political decision-makers (and judiciary), and allow the communities and their decision-makers to take on participated and shared decisions on their acceptable level of risk. These should include the consequences of their decisions and, in a broader perspective, the residual risks that, in a general appraisal, they will decide to accept
The Goddess Awakened: Partnership Studies in Education and World Literatures in English
No full textThis book brings together the proceedings of the International Conference entitled 'The Goddess Awakened: Partnership Studies in Education and World Literatures in English' (University of Udine 19-22 April 2007), which hosted internationally renowned writers and scholars in Education and Language Studies, from Italy, Australia, India, South Africa and the United States of America. It combines partnership epistemological models with postcolonial literary criticism, thus creating methodological connections with non-binary and inter/multi-disciplinary cultural paradigms. Its main focus of attention is on the 'archetypical' sources of texts, especially in relation to stories or 'narrations' related to the Goddess figure, metaphor of a more caring and eco-sustainable vision of life. The book investigates the persistence of the ancient Triune Goddess and of other feminine archetypes, prototypical energy present in our past and present traditions, in two periods regarded as specular and conceptually linked: contemporary literatures in English (Australian, Indian, Canadian, South African, West-Indian) and Renaissance/Late Renaissance British literature. The awakening of the Goddess is also celebrated in the arts: poetry, drama, narrative, dance, and a photographic and sculptural exhibition of the Sacred Feminine, which can be enjoyed both in the book itself and in the two accompanying DVDs
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