Banca de DEFESA: Daiane Teodoro de Andrade

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : Daiane Teodoro de Andrade
DATE: 25/11/2022
TIME: 14:00
LOCAL: Plataforma Teams
TITLE:

MODELING THE DEGRADATION OF FAÇADES BASED ON PARAMETERS OBTAINED FROM THE HYGROTHERMAL SIMULATION FOR BUILDINGS IN BRASILIA

KEY WORDS:

Modeling, Degradation, Pathologies, Facades.

PAGES: 97
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Construção Civil
SPECIALTY: Materiais e Componentes de Construção
SUMMARY:

The facade degradation process is influenced by several factors and/or degradation agents that can favor the loss of system performance. Daily, the facades are exposed to the incidence of weather degradation agents such as driving rain and solar radiation. Only the incidence of the agent does not condition the appearance of pathologies, they occur from the degradation mechanisms that, according to the level of incidence of the agent, alter the physical or chemical structure of the material. The study of degradation is used by selecting the variables that influence the process and that are subject to determination for the buildings under analysis. This research aims to investigate the action of climatic agents and the behavior of the facades in terms of heat fluxes and humidity with the use of hygrothermal simulation, as well as to correlate the results of the hygrothermal simulation in a quantitative way with indicators of degradation measured in the field by research. of the DMM project. Statistical tools are used to obtain a model capable of describing the degradation in facades with ceramic coating. Modeling from multiple linear regression indicates the most relevant variables in the prediction of the model. In this research, the inclusion of quantitative values referring to climatic agents and the effects of heat and humidity fluxes in the coating allows the numerical weighting of their influences on the degradation process of ceramic coatings. It is observed that age is the most influential factor in the degradation process, that is, the greater the age of the building, the greater the degradation indicator and, consequently, the more serious the degradation of the facade. In addition to age, driving rain, moisture content, and thermal stresses are shown to be statistically representative in determining the degradation indicator. The application of linear modeling makes it possible to determine that the end of life of the analyzed facades occurs at 24 years (± 4), and with the application of quadratic modeling, the end of life occurs at 25 years (± 3.5).

BANKING MEMBERS:
Presidente - 404321 - ELTON BAUER
Externo à Instituição - ELIER PAVÓN
Externa à Instituição - VANESSA SILVEIRA SILVA - UFBA