Banca de DEFESA: GEILSON MÁRCIO ALBUQUERQUE DE VASCONCELOS

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : GEILSON MÁRCIO ALBUQUERQUE DE VASCONCELOS
DATE: 01/06/2023
TIME: 09:00
LOCAL: Pós-Graduação Engenharia Civil
TITLE:

Experimental Analysis of Ceramic Block Masonry Walls Submitted to Fire

KEY WORDS:

sealing masonry; structural masonry; experimental analysis; Fire.

PAGES: 157
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

The ceramic blick masonry construction system has been used in civil construction for a long time. It is necessary, in this sense, to understand its performance at room temperature and fire so that such action becomes relevant, since several fires have occurred in recent years in this type of building. Thus, this thesis sought to contribute to the evaluation of masonry walls made of ceramic blicks common non-structural and structural masonry, when simultaneously subjected to mechanical and thermal loads. The study also evaluated the behavior of insulated ceramic blicks and mortars under high temperatures in three test conditions: hot failure, failure after sudden cooling and failure after slow cooling. Therefore, the work developed an experimental series with 19 walls of common and structural ceramic blicks, analyzes at room temperature and under fire. The fire-tested walls had one of their faces heated according to the standard fire curve ISO 834 (2014) until they reached failure due to thermal insulation, tightness or mechanical strength. Walls with structural blicks tested at room temperature showed low values of resistant capacity, still below normative values and close to practical service loads. In a fire situation, the sealing walls, that is, with common ceramic blicks, failed due to thermal insulation, when there were no loads applied; however, when load was applied, the failure became due to mechanical resistance and low fire resistance, not reaching the 30-minute class. The structural walls, on the other hand, presented a much better fire performance, reaching a class of 150 minutes, failing due to thermal insulation; however, higher loads altered the failure criterion, also reducing the TRRF. Therefore, it can be highlighted that there was a variability in the results, characteristic of ceramic blicks, indicating the need for further research in this area of walls submitted simultaneously to mechanical load and fire.

COMMITTEE MEMBERS:
Externo à Instituição - CRISTIANO CORREA
Externo à Instituição - FERNANDO ARTUR NOGUEIRA SILVA - UNICAP
Externo à Instituição - JOSÉ AFONSO PEREIRA VITÓRIO - UPE
Externo à Instituição - LEONARDO MEDEIROS DA COSTA - UEPB
Presidente - 1128124 - ROMILDE ALMEIDA DE OLIVEIRA