Daylight in libraries : analysis based on six differnt case studies

Benedetto Gallina

Daylight in libraries : analysis based on six differnt case studies.

Rel. Danis Zastavni, Magali Bodart, Anna Pellegrino. Politecnico di Torino, Corso di laurea magistrale in Architettura Costruzione Città, 2014

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Abstract:	INTRODUCTION: The purpose to this thesis is to understand the relation bewteen the daylight and the architectural design. Which stages of the design conception are influnced by the daylight, how this can influence the perception of the spaces, the comfort, the feelings of the users, the geometry of the building and the parts that compose it. Which are the tools that allow the designer to make a conscious daylight design? To overcome this issue a typology of architecture has been selected; the library. Because of its particular function libraries have a very peculiar relation with the daylight. They require both a functional light and aestethic light. Functional light have to be both very high to allow the readers to read and very dim to protect the books that are stored in the library. Aesthetic light must celebrate the function of “storage of culture” and at the same time “exposer of culture”, that library contains in its definition. The way of approaching the daylight in libraries has known numerous design solution throughout the years. The architectural panorama is vast, and hence the selection of cases study takes count to represent all the mains configurations. This imply libraries that seeks the light from the top, libraries that seeks the light from the sides, and the mix of this one. The cases study are situated in different locations at different latitudes. This choice allow to understand which is the influence of latitude in the daylighting desing. Talking about daylight means firstly talking about feelings, humans perceptions and human health. Therefore the first part of this thesis will be dedicated to these issues. In which way the daylight is connected with the concept of comfort and how this creates requirements, that a well studied lighting design must take in consideration. Secondly the concept of climate will be taken in review in order to better understand what will constitute the main tool of this thesis. In fact, the daylighting analyses that will support the architectural design analyes will be based on a set contemporary powerful tools that bring information both in terms of quantity of daylight and both in terms of quality .The most innovative tool is the climate-based-approach. This predict in a statistical approach the daylighting behavirour of an architecture throughout an year. This type of approach will be passed in review and will be compared to the other approaches that allow to understand the quantity of light in a space. The quantitative analyses will be matched to the qualitative analyses of the solar path in order to have a complete view of the problem of daylight. One time collected all of these datas, the libraries will be analysed singularly in a first moment and compared altogether in a second moment. This approach will allow to understand the relation between every analysed architectural configurations and the daylighting behaviours of that specific design. In which manner the daylight can be used in libraries to emphazised its functions and which are the paths that a conscious daylight design could follow.
Relatori:	Danis Zastavni, Magali Bodart, Anna Pellegrino
Tipo di pubblicazione:	A stampa
Informazioni aggiuntive:	Vincitore del Premio Zanella 2014
Soggetti:	A Architettura > AL Edifici e attrezzature per l'istruzione, la ricerca scientifica, l'informazione S Scienze e Scienze Applicate > SJ Illuminotecnica
Corso di laurea:	Corso di laurea magistrale in Architettura Costruzione Città
Classe di laurea:	NON SPECIFICATO
Aziende collaboratrici:	NON SPECIFICATO
URI:	http://webthesis.biblio.polito.it/id/eprint/3687
Capitoli:	INDEX: FIRST PART: STATE OF ART 0. INTRODUCTION 1. DAYLIGHT REQUIREMENTS 1.1 Daylight, a complex problem 1.2 Health implication of dayligh 1.3 The concept of comfort 2. CLIMATE 2.1 Climate fundamentals 2.2 The variability of daylight 2.3 The luminance distribution of sky 3. COLLECTING DAYLIGHT 3.1 From the sky to the desk features buildings that characterized the quality of daylight 3.2 The concept of transmittance 3.3 Glazing transmittance 4. LIBRARIES AND DAYLIGHT 4.1 The basis of a conscious X lighting design in libraries 5. ANALYSING DAYLIGHT 5.1 Daylight factor 5.2 Advantages and limits of the daylight factor approach 5.3 The basis of the climate-based daylighting approach 5.4 Dynamic daylight metrics 5.5 Metrics comparison 5.6 Simulating daylight SECOND PART: LIBRARIES 6. SIMULATION PROGRAMS 6.1 How to construct a 3D model 6.2 Working with daysim SELECTED LIBRARIES: 7.VIIPURI LIBRARY 7.1 The library QG 7.2 A pure diffuse light 7.3 Simulation’s results 7.4 Daysim analysis 7.5 Solar path analysis 7.6 Conclusions 8. ROVANIEMI PUBLIC LIBRARY 8.1 Daylight factor 8.2 Stealing light from the North 8.3 An example of perimetral light 8.4 Simulation’s results MAIN READING ROOM 8.5 Daysim analysis 8.6 Solar path analysis 8.7 Conclusions PRESS ROOM 8.8 Daysim analysis 8.9 Solar path analysis 8.10 Conclusions 9. PHILLIPS EXETER LIBRARY 9.1 The library 9.2 The lighting carrels 9.3 Simulation’s results 9.4 Daysim analysis 9.6 Conclusions 10. KANAZAWA UMIMIRAI LIBRARY, Kanazawa JAPAN 10.1 The library 10.2 Light through nature 10.3 Simulation’s results 10.4 Daysim analysis 10.5 Solar path analysis 10.6 Conclusions 11. LIYUAN LIBRARY, Beijing CHINA 11.1 The library 11.2 Thousands of punctual lights 11.3 Simulation’s results 11.4 Daysim analysis 11.5 Solar path analysis 11.6 Conclusions
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