Search results for "Building"
showing 10 items of 1985 documents
Sustainability focused decision-making in building renovation
2017
Abstract An overview of recent research related to building renovation has revealed that efforts to date do not address sustainability issues comprehensively. The question then arises in regard to the holistic sustainability objectives within building renovation context. In order to deal with this question, the research adopts a multi-dimensional approach involving literature review, exploration of existing assessment methods and methodologies, individual and focus group interviews, and application of Soft Systems Methodologies (SSM) with Value Focused Thinking (VFT). In doing so, appropriate data about sustainability objectives have been collected and structured, and subsequently verified …
Buckling and post-buckling of variable stiffness plates with cutouts by a single-domain Ritz method
2023
Structural components with variable stiffness can provide better performances with respect to classical ones and offer an enlarged design space for their optimization. They are attractive candidates for advanced lightweight structural applications whose functionalities often impose the presence of cutouts that requires accurate and effective analysis for their design. In the present work, a single-domain Ritz formulation is proposed, implemented and validated for the analysis of buckling and post-buckling behaviour of variable stiffness plates with cutouts. The plate model is based on the first-order shear deformation theory with nonlinear von Karman strain–displacement relationships. The p…
Natural ventilative cooling in school buildings in Sicily
2016
The paper shows analysis of the impact on thermal comfort of natural ventilation in a nonresidential Mediterranean case-study. Results are based on the EN 15251 approach on adaptive comfort. Different scenarios are proposed, granting an improvement of up to 10% in the number of summer comfort hours.
Partizione verticale mobile sostenibile
2016
La partizione utilizza un pannello costituito da un telaio in legno che si sviluppa attorno a un riquadro centrale, le cui dimensioni si riferiscono alla misura standard del tatami giapponese (cm 90 X 180). Tale riquadro è chiuso da una stuoia di canne schiacciate, che su un lato rimane a vista e sull’altro è rivestita da un intonaco in terra cruda addizionata di piccoli frammenti di paglia. Il pannello si presta ad essere utilizzato in modo versatile per realizzare partizioni verticali mobili all’interno di abitazioni e si configura come prodotto coerente con la scelta di sostenibilità edilizia. 1) Mobile vertical partition, including a system of assembly that uses materials that have a lo…
Iekštelpu vides kvalitātes novērtējums pirmsskolas un skolas vecuma bērnu izglītības iestādēs
2017
Bakalaura darba “Iekštelpu vides kvalitātes novērtējums pirmsskolas un skolas vecuma bērnu izglītības iestādēs” ietvaros veikts iekštelpu mikroklimata un piesārņojuma līmeņa novērtējums trīs izglītības iestādēs (PII Rīgas Valdorfskolas bērnudārzs, Rīgas Valdorfskolā un Rīgas 49. vidusskolā) laika posmā no 2016. gada rudens līdz 2017. gada pavasarim. Novērtēšana veikta izmantojot tiešo mērījumu metodi, atsevišķu parametru atbilstība vērtēta salīdzinājumā ar noteiktajiem normatīvajiem lielumiem, savukārt citi, kuriem normatīvu nav, salīdzināti ar Pasaules veselības organizācijas vadlīnijās iekļautajiem lielumiem.
Ética desde la resistencia: el compromiso político de Vicente Aguilera Cerni
2016
Este artículo se acerca al trabajo del crítico de arte español Vicente Aguilera Cerni (Valencia, 1920-2005), y analiza su compromiso político con el pensamiento de izquierda a lo largo de su vida.
Latvijas Universitātes rektors un goda biedrs profesors Mārtiņš Bīmanis
2017
Raksts iekļauts LU Bibliotēkas veidotajā virtuālajā izstādē "Pēc diviem mirkļiem 100 gadi : rektoru galerija"
Symplectic analysis of thin-walled curved box girders with torsion, distortion and shear lag warping effects
2022
Shear lag effect and torsional and distortional warping can significantly affect the performance of thin-walled curved box girders used in modern bridge engineering. The structural behaviour of these bridges exhibits complexity due to coupled bending and torsion together with warping effects of non-uniform torsion, distortion and shear lag. A practical method of analysis, based on the symplectic approach, with the same perspective as the Higher Order Beam Theories, is presented for overcoming the difficulties of numerical approaches via the Finite Element Method. In this paper, the Hamiltonian Structural Analysis method implements the analysis of the shear lag effect together with non-unifo…
Torrefied versus conventional pellet production – A comparative study on energy and emission balance based on pilot-plant data and EU sustainability …
2015
Abstract Torrefaction is an emerging technology which enables greater co-firing rates of biomass with coal. To date however there has been a lack of real production data from pilot-scale torrefaction plants. Without such data any environmental benefits of torrefied pellet production are difficult to quantify. In this study data on consumable inputs from a semi-industrial torrefaction plant and the physical properties of produced pellets are used to analyse energy input and air emissions of torrefied pellet production and product transport. EU sustainability criteria are used to compare CO2-equivalent emissions from torrefied and conventional pellet production starting from harvesting of log…
Improvement of high modulus asphalt mixtures with average quality aggregate and bitumen by application of polymeric additives
2018
Abstract The paper deals with the development of asphalt mixtures for high performing binder and base courses, modified with both commercial and waste polymeric additives, via dry process. The focus was on the mix design of high performing mixtures making use of average quality aggregate and average penetration grade bitumen (as locally available) instead of the usually required high quality components, manly very hard bitumen, thus aiming to improve the reference mixture as made possible by suitable polymers. Mixtures were subjected not only to conventional tests for mix design purposes, but also to advanced tests for performance evaluation such as rutting resistance and fatigue resistance…