Search results for "Building"
showing 10 items of 1985 documents
Seismic response of steel frames with reduced beam sections
2003
This study concerns the effectiveness of weakening on the beams of fully and partially restrained connection steel frames in order to locate plastic hinges far from the joints. Two types of non-linear analysis, for geometry and constitutive law are developed: static pushover analysis, in which the structure is subjected to constant vertical loads and to horizontal loads linearly increasing up to collapse; and incremental dynamic analysis, in which the structure is subjected to uniformly scaled ground motions. Applications for four-bay frames with three and nine stories designed according to the EC3 code and for Italian 1st-category seismic areas are developed in order to evaluate the influe…
BRAZILIAN SOCIAL HOUSING POLICY: TOWARD A SUSTAINABLE FUTURE
2013
In the last decade, Brazil passed through several political and economic reforms that led to significant social changes, among which the reduction of the levels of inequality and extreme poverty. Nowadays considered one of the emerging economies, the country seeks to solidify its position through wide strategies aimed to propose decisive initiatives for a balanced social development, which are deeply affecting local architecture and urban planning. In this scenario social housing design has become, since the last decade, the mirror of a national policy that is implementing robust strategies to achieve high levels of growth. The paper provides an overview of the upgrades achieved in the fiel…
Innovative Photovoltaic Translucent Components for the Building Envelope
2014
International directives that regulates buildings energy efficiency and environmental sustainability establish strict parameters for the construction of a new generation of “Zero Energy Buildings” indicating transmittance limits for building envelope components and encouraging the use of renewable sources. In this sense, the PV sector aims at the definition of novel efficient solutions for the integration in the building envelope, standing out for their multifunctional features. After an overview on the main PV technologies and building integrated applications, focusing on semi-transparent envelope solutions, the paper shows the results of a research that is being carried out at the Departm…
Building Heritage. Introduzione
2016
Il gran numero di articoli indirizzati a questa sessione testimonia il notevole interesse che la nostra comunità scienti ca continua a manifestare per i temi legati allo straordinario patrimonio che forma le nostre città: interesse scienti co che in più occasioni è volto a coniugare l’analisi ed il progetto con la conservazione e la valorizzazione. Ciò conferma l’importanza economica e sociale del settore, legato agli studi ed agli interventi sull’architettura esistente e diff uso su una grande varietà di temi aggiornati e complessi che mostrano la vitalità del nostro ambito disciplinare e delle giovani leve. Non può non apprezzarsi il fatto che queste si applichino con paziente coraggio mal…
ARCHITETTURA E FOTOVOLTAICO: STRATEGIE E CRITERI D’INTEGRAZIONE. ARCHITECTURE AND PHOTOVOLTAICS: STRATEGIES AND INTEGRATION CRITERIA
2016
Nonostante i numerosi esempi positivi offerti dal panorama architettonico degli ultimi due decenni, alcuni studi hanno dimostrato come esistano ancora delle barriere che limitano l’impiego del fotovoltaico (FV) negli edifici e come spesso queste riguardino aspetti legati all’accettazione delle soluzioni utilizzate, specialmente sul piano della qualità architettonica. Il presente lavoro descrive e analizza alcuni dei numerosi esempi di nuova costruzione o retrofit, nei quali il FV diventa parte integrante del processo progettuale, non solo per gli aspetti concernenti la produzione di energia ma anche per quelli propriamente legati alla funzionalità dell’involucro edilizio, all’efficienza ene…
Evaluation of the Thermodynamic Performance of the Traditional Passive Systems
2013
The energy consumption of buildings in urban areas is one of the greatest source of energy wasting and, consequently, of increasing of CO2 emission. Research is currently focused on the reduction of this consumption through the use of passive air-conditioning systems, that can be integrated with conventional systems and give rise to the so-called hybrid systems. Historically, these passive systems were developed in the Mediterranean and Middle East area. The research approach on this topic involves the application of design strategies and the development of computational tools and control systems. The development of the hybrid systems is the result of the synergy between current scientific …
Design and performance of sustainable and translucent building envelopes made of ETFE cushions
2009
The paper reports the first results of a research carried out at the Department of Design and Building Construction of the University of Palermo aimed to investigate the problems related to the performance improvement of the building envelope components able to gain the sunlight. In particular we have investigated the development of sustainable building envelopes made of ETFE (Ethylene TetraFluoroEthylene) cushions. The paper shows the problems related to physics, techniques and construction derived from the use of ETFE by analysing the first use of this innovative material for the construction of more recent sustainable building envelopes all over the world. Because of the few studies avai…
Transparent and sustainable materials
2013
The search for greater transparency in buildings characterizes the current architectural scenario: the use of glass is more and more common in both the design of new buildings and for renovation. However, the design of the transparent part of the building envelope is critical to the achievement of efficiency and sustainability. There are several research companies that aim to improve the energy performance especially of the glass. Today there is a wide range of products capable of providing different solutions, depending on the aesthetic and technical requirements of the structure in question. The aim of this article is to provide a clear overview of the possibilities of the transparent mat…
Integrazione di celle solari di terza generazione nel vetromattone per la realizzazione di involucri edilizi traslucidi fotovoltaici
2013
L’integrazione di celle solari di terza generazione - Dye-sensitised Solar Cells (DSSC) - nel vetromattone consente di ottenere un prodotto edilizio in grado di generare energia pulita, personalizzabile in termini di colore, livelli di trasparenza e fi niture, adatto alla realizzazione di componenti edilizi fotovoltaici, traslucidi e multifunzionali, facilmente integrabili nelle chiusure degli edifi ci per la costruzione di involucri edilizi energeticamente effi cienti ed attivi anche in contesti climatici avversi, quali possono essere quelli del Mediterraneo e delle aree subtropicali. L’articolo illustra 4 differenti ipotesi di integrazione delle DSSC nel vetromattone fornendo, per ciascun…
La traduzione costruttiva lituana negli edifici di culto in legno tra i secc. XVIII e XIX
2014
Lithuania is situated in a highly forested Northeastern Europe area and has a variety of wooden buildings. Among the wooden structures we enumerate the religious buildings, churches and bell towers, rich of historic values, presenting different forms and sizes, a complex design and stratified construction phases. The present work aims to study this interesting topic and intends not only to analyze the architectural typology but even more the technological and structural aspects, that had suggested the most influences on building techniques during the centuries.