Search results for " Retrofitting"

Genetic Optimization for the design of seismic retrofitting of plane RC frames with Buckling Restrained Braces (BRBs)

2021

The increasing development of computational power in modern digital devices has spread the use of structural optimization in design applications of different fields of engineering problems. This approach exposes engineers to challenging design procedures aimed to optimize all variables to satisfy the imposed requirements, finding the “optimal” solution. Despite this wide use, the application of optimization algorithms for the design of seismic retrofitting strategies becomes tougher, due to the difficulties in finding a mathematical expression which includes and combines all the key variables (i.e., cost, safety, sustainability, design) and the nonlinearity of the analysis. In this paper, t…

Assessment of the load carrying capacity of reinforced concrete columns strengthened by steel cages Specificità nella valutazione della capacità port…

2018

In the present paper, a selected review of the most relevant analytical models provided for the evaluation of the con-finement properties of Steel Jacketed RC columns is discussed. The reliability of the models is tested by comparing the analytical predictions of the load capacity with experimental results available in the literature depending on the type of mechanical end-connections. Moreover, new considerations regarding the application of the steel jacketing on columns while loaded are faced by experimental investigation

ENERGY RETROFIT AND URBAN RENOVATION. APPLICATION OF SBTOOL METHOD. A CASE STUDY IN TRAPANI, ITALY

2013

Climate changes caused by carbon emissions are nowadays considered as one of the greatest threats faced by humanity, because they cause problems of human health and poor prospects for global economy. It means that, also in the field of architecture and urban planning, there is an urgency to find appropriate solutions to face this issue, as demonstrated by the increasing amount of normative measures and policy at global level. The paper aims to show a critical analysis of the urban context conducted through the application of sustainability assessment tool - SBTool - into the social housing complex of Cappuccinelli district, chosen as case study. The choice for applying this methodology, whi…

Reti bayesiane per l’indentificazione delle migliori strategie di gestione idraulica di un bacino urbano

2011

EXPERIMENTAL SEISMIC ANALYSIS OF MONUMENTS FOR RISK MITIGATION

2008

An experimental investigation, at the moment in progress, for the evaluation of the seismic vulnerability of a monumental structure and the effects of some reinforcement devices are presented. Referring to this monumental structure, that is a church, the authors obtained the dynamically identified analytical model and recognized that the drum-dome system was one of the macro-elements with highest risk. This result was obtained by analyzing the linear behaviour. In order to study the nonlinear behaviour, tests on reduced scale models were necessary. The models, with and without risk mitigation reinforcements, were subjected to seismic input with rising intensity in order to know the effects …

Le attività all’interno del progetto: il workshop. Gestione del campus universitario di Palermo e dell’Edificio 14 Facoltà di Architettura - The acti…

2010

Verificata la mancanza di attenzione alla prevenzione e riabilitazione sismica degli elementi non strutturali nella ricerca scientifica e nella normativa tecnica italiana, è stato avviato un progetto di cooperazione internazionale tra l’Università di Palermo e l’Università di Berkeley dal titolo “Prevenzione e riabilitazione sismica nonstrutturale.Confronto fra due culture di prevenzione sismica al fine di redigere linee guida per un manuale d’uso degli edifici scolastici”, finanziato nell’ambito del programma CoRI 2005/2006 dell’Ateneo di Palermo. Tra le varie attività previste durante la permanenza del partner straniero a Palermo è stato organizzato un workshop, che ha visto coinvolto un …

TECHNOLOGICAL DESIGN. THE INNOVATION IN THE METHOD

2018

The book presents reflections on the centrality of Design in the discipline of Technology of Architecture and on the need to adapt the design method to the innovation of thought implemented by the research world. The theme of the Innovation in the Method of Technological Design is an interesting challenge that in this volume has been addressed considering the complexity of the levels of thematic depth, opening up to critical reflections, proposals for tools and illustration of case studies that show the breadth, relevance and multidimensionality of this issue. The era of digital and information technology have significantly influenced the way of doing and thinking in architecture and this e…

Increasing the flexural capacity of RC beams using steel angles and pre-tensioned stainless steel ribbons

2016

This article presents an experimental programme on reinforced concrete beams retrofitted with steel angles and pre-stressed stainless steel ribbons to increase their flexural strength and ductility. Two different configurations of the steel ribbon were designed, and two companion specimens for each type considered were subjected to a four-point bending test to facilitate a direct comparison in the analysis of the effectiveness of the retrofitting technique. The influence of longitudinal steel angles and transverse stainless steel ribbons is analysed, and the concrete confinement due to stainless steel ribbons examined. The strengthened beams show remarkable increments in flexural strength a…