Banca de DEFESA: Kamira Barbosa Ribeiro

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : Kamira Barbosa Ribeiro
DATE: 28/07/2023
TIME: 14:00
LOCAL: CDT, UnB (sala INTERAÇÃO)
TITLE:

EXPERIMENTAL ANALYSIS OF PRECAST SANDWICH PANELS WITH EPS CORE AND MORTAR WYTHES UNDER AXIAL LOAD

KEY WORDS:

Precast Sandwich Panel; Axial Load; Ultimate Load; Full scale Compression Test.

PAGES: 108
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Estruturas
SPECIALTY: Mecânica das Estruturas
SUMMARY:

The advances in the construction industry and the growing necessity for fast, sustainable, and cost-effective construction systems have led to the creation of several new non-structural as well as structural elements. This is the case for the precast system, for which the solution of Precast Sandwich panels (PCSPs) stands out. In this context and given the specificities of the constructive process of the Precast Sandwich Panels in Brazil, this work has focused on assessing the mechanical compressive behavior of those panels under axial load. This work reports the results of three thin wythe precast sandwich panels tested under axial load. Panel reinforcement and shear connectors in the current state of precast sandwich panels in the civil construction context are evaluated. The author measured displacement at two distinct panel heights as well as along the panel width to provide load-displacement behavior at the cross-section level and broaden the experimental data on the subject. Further interpolations were made with those displacements registered in the panels, in order to illustrate the load-displacement profile of them along their height. The test results developed in this research showed good agreement with the results available in the literature. In addition, as concrete-wall panel strength equations have been linked to the compressive behavior of precast sandwich panels, a brief review of empirical formulae is also offered herein. Moreover, empirical data, since 2005, on both concentrical and eccentrical load testing available in the literature is also reported and compiled. Further axial tests on unreinforced masonry walls were carried out, also measuring displacements at two distinct wall heights. Experimental results on PCSPs showed agreement between equations proposed in the literature among that the largest displacements at cross-section level have not been observed in mid-width of panel and that the degree of composition was highly achieved.

COMMITTEE MEMBERS:
Presidente - 404840 - WILLIAM TAYLOR MATIAS SILVA
Interno - 6669206 - LUCIANO MENDES BEZERRA
Externo à Instituição - CLEIRTON ANDRÉ SILVA DE FREITAS - UFCA