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Study of damage distribution and intensity in regions of the facade

Journal of Building Pathology and Rehabilitation 2016年第1期1卷 1-9页

作者： de Souza, Jessica S. Bauer, Elton Nascimento, Matheus L. M. Capuzzo, Valdirene M. S. Zanoni, Vanda A. G. Post-Graduate Program in Structures and Civil Construction Civil and Environmental Engineering Department University of Brasília Campus Universitário Darcy Ribeiro Asa Norte Brasília 70910-900 DF Brazil Faculty of Architecture and Urbanism University of Brasília Campus Universitário Darcy Ribeiro Asa Norte Brasília 70910-900 DF Brazil

The ceramic coating systems applied to building facades have relevant aesthetic value and protection functions. The architectural and environmental conditions can greatly influence the degradation process of the facades, which may pose risks and compromise the durability and service life of the building and its components. The degradation process of facades changes according to the region where it takes place. To this end, the present study aims to determine damage intensity and distribution in the different regions of the facade. This study investigated the facades of three buildings that are part of the Materials Testing Laboratory (LEM) database of the Universidade de Brasilia. The degradation was quantified using a methodology proposed by Silva (2014) to generate a degradation index expressed in m². After the quantification of damages, few indexes associated with the percentage of degraded area, applied to the facade regions, are presented. These weighted indexes allowed to standardize the values observed in each region. Obtaining these indices is fundamental to the study of degradation. The results show that for a comparative analysis between the regions, the observed values should be corrected for the proportionality of the area of each region in relation to the total area of the facade. It was also noted that the continuous walls are the most affected regions, but they do not always present the highest damage intensity. © 2016, Springer International Publishing Switzerland.

关键词： Damage distribution Degradation Degradation index Facades Pathology

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Wind-driven rain incidence parameters obtained by hygrothermal simulation

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Journal of Building Pathology and Rehabilitation 2016年第1期1卷 1-7页

作者： Nascimento, M.L.M. Bauer, E. de Souza, J.S. Zanoni, V.A.G. Post-Graduate Program in Structures and Civil Construction Civil and Environmental Engineering Department University of Brasília Campus Universitário Darcy Ribeiro Asa Norte Brasília 70910-900 DF Brazil Faculty of Architecture and Urbanism University of Brasília Campus Universitário Darcy Ribeiro Asa Norte Brasília 70910-900 DF Brazil

The association of rain and wind composes wind-driven rain (WDR), and its incidence may be crucial to the emergence of anomalies on the facades of buildings. Moisture from the WDR can influence the humidification and drying process, therefore the durability and hygrothermal performance are conditioned by the amount of incident water. The quantification of WDR can be an indispensable tool for understanding its related phenomena and the service life of buildings. The most widely used methods of quantification are the semi-empirical, with theoretical basis, but coefficients partially determined from measurements. These methods may take into account the building exposure conditions related to the envelope, solar orientation, height of the building, and other parameters. In this context, in order to contribute to the studies on quantification of WDR, the purpose of this paper is to apply hygrothermal simulation software WUFI^® on quantification of WDR focusing on buildings degradation of Brasília-Brazil. For the simulation it was used a Typical Meteorological Year file with the wind and precipitation measurement data indispensable for simulation. The quantification of incidence of WDR considered the orientations North, Northeast, East, Southeast, South, Southwest, West, and Northwest. The use of semi-empirical WUFI^® quantification method allowed finding the highest values and consequently critical orientations North, Northwest, and Northeast, moreover, this results showed the relation with the degradation of facades in these orientations. WUFI proved to be an easy, fast and efficient method of WDR quantification, without hiding seasonal weather effects. © 2016, Springer International Publishing Switzerland.

关键词： Degradation Facade Hygrothermal simulation Wind-driven rain

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Computational simulation of indoors temperature field: Comparative study between the aplication of short and long wind-catch

Computational simulation of indoors temperature field: Compa...

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11th International IBPSA Conference - Building Simulation 2009, BS 2009

作者： Drach, Patricia R.C. Federal University of the Rio de Janeiro Post-graduate Program in Urbanism of the School of Architecture and Urbanism - PROURB/FAU/UFRJ Rio de Janeiro Brazil

Aiming to study the temperature field changes, the House VI project was checked. This house is located in Vila37, Rio de Janeiro, Brazil, a dead-end small street with only one inlet/outlet. In the houses of Vila37, the indoor ventilation is restricted to the facade windows. Giving the impossibility of introducing cross-ventilation in a traditional way, a short wind-catch was previously added with positive results;therefore, simulations with long wind-catch are being carried out. The analysis started by solving the air-circulation problem by using a finite element method and after, with the wind fields added, the heat transfer problem was analysed. The results obtained were evaluated and compared with the previous ones.

关键词： Houses

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Visualizing architectural theory: A case-study on digital representation

Visualizing architectural theory: A case-study on digital re...

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11th International Conference of the Association for Computer-Aided Architectural Design Research in Asia 2006, CAADRIA 2006

作者： Kos, Jose R. Barki, Jose PROURB - Post-Graduate Program of Urban Design Faculty of Architecture and Urbanism Federal University of Rio de Janeiro Brazil

This paper aims to analyze interactive multimedia and visualization techniques for architectural theory publications. Unfortunately, the available literature about multimedia, visualization, hypertext and related systems in this area is not consistent. The paper reviews the features of a research project outcome, which investigates an iconic building of the late 1930's in Brazil. It examines the differences and similarities between a hypertext/multimedia system - a CD-ROM - with a comparable non-hypertext or non-computer product - a book - that deals with a specific subject: Architectural Theory.

关键词： CD-ROM

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Beyond Houses 1

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丛书名： The Urban Book Series

1000年

作者： A. Nuno Martins Carmen Mendoza-Arroyo Liliane Hobeica Jorge León Adib Hobeica

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