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Previous issue date: 2015-03-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / O estudo desenvolvido prop?e uma nova modelagem computacional eficiente e de
f?cil aplica??o em situa??es usuais de projeto para avaliar a intera??o entre pain?is
de alvenaria e estrutura de suporte. O modelo proposto simula o comportamento da
parede utilizando exclusivamente elementos finitos de barra, compondo, assim, um
p?rtico equivalente. A valida??o foi realizada sob dois aspectos: primeiramente,
mediante estudo de diversos pain?is planos gen?ricos, confrontando os resultados
obtidos do modelo de p?rtico equivalente com os de um modelo de refer?ncia, o qual
utiliza elementos finitos de casca na discretiza??o das paredes e, numa segunda
etapa, comparando com os resultados do modelo experimental de Rosenhaupt. As
an?lises consideraram o comportamento el?stico linear para os materiais e
consistiram basicamente na avalia??o dos deslocamentos verticais e dos esfor?os
nas vigas de apoio, bem como das tens?es na base das paredes. Foram avaliados
tamb?m, a partir de modelagem plana e tridimensional de algumas paredes de um
projeto real, aspectos importantes da intera??o parede-viga, tais como: presen?a de
aberturas de portas e de janelas, dispostas em qualquer posi??o; condi??es de
apoio e vincula??o das vigas; interfer?ncias das amarra??es entre paredes;
considera??o da a??o do vento. As an?lises dos resultados alcan?ados
evidenciaram a efici?ncia da modelagem proposta, em raz?o de apresentarem
aspectos muito semelhantes na distribui??o de tens?es e de esfor?os, sempre com
intensidades um pouco maiores do que as dos modelos de refer?ncia e
experimental. / The developed study proposes a new computer modeling efficient and easy to apply
in usual project situations to evaluate the interaction between masonry panels and
support structure. The proposed model simulates the behavior of the wall exclusively
using frame finite elements, thus compounding an equivalent frame. The validation
was performed in two ways: firstly, through the analysis of various panels of generic
plans, comparing the results obtained from equivalent frame model with the ones
from a reference model, which uses shell finite elements in discretization of the walls?
and in a second step, comparing with the results of the experimental model of
Rosenhaupt. The analyzes considered the linear elastic behavior for materials and
consisted basically in the evaluation of vertical displacements and efforts in support
beams, and tensions at the base of walls. Was also evaluated, from flat and threedimensional
modeling of some walls from a real project, important aspects of the
wall-beam interaction, e.g.: the presence of openings of doors and windows,
arranged in any position? conditions of support and linking of beams? interference of
moorings between walls? and consideration of wind action. The analysis of the
achieved results demonstrated the efficiency of the proposed modeling, since they
have very similar aspects in the distribution of stresses and efforts, always with
intensities slightly larger than those of the reference and experimental models.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/20062 |
| Date | 26 March 2015 |
| Creators | Medeiros, Klaus Andr? de Sousa |
| Contributors | 83991301415, http://lattes.cnpq.br/2747505817148030, Maciel, Daniel Nelson, 02147178446, http://lattes.cnpq.br/4343155598427033, Silva Filho, Jos? Neres da, 83729950606, http://lattes.cnpq.br/0915972389480304, Corr?a, M?rcio Roberto Silva, 28199871687, http://lattes.cnpq.br/7780769246876333, Nascimento Neto, Joel Ara?jo do |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA CIVIL, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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