Banca de QUALIFICAÇÃO: Isabella Caroline Vieira Machado

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : Isabella Caroline Vieira Machado
DATE: 10/12/2020
TIME: 15:30
LOCAL: on line
TITLE:

STUDY OF THE INFLUENCE OF SHEAR DEFORMATIONS IN STEEL PLANE FRAMES THROUGH ADVANCED ANALYSIS.

KEY WORDS:

Advanced analysis, von Mises' model, Timoshenko's hypothesis, Distributed plasticity approach, steel plane frames.

PAGES: 79
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Estruturas
SPECIALTY: Estruturas Metálicas
SUMMARY:

In structural projects, steel is a widely used material due to its advantages such as strength and durability, good ductility, quick manufacturing and assembly, besides being a totally recyclable and reusable material. Recent studies - based on softwares that use Advanced Analysis for structural analysis - produced more consistent results about the real behavior of structures and allowed designers to take advantage of the load capacity of the structural system. So, the designers create now more optimized and slender structures, minimizing costs and materials. Many works are based on Bernoulli-Euler's classical theory, but on short bars, where the ratio between cross section and length is small, and metal I-section, where the high form factors show the influence of shear deformation, a stricter analysis, based on Advanced Analysis including the shear effects, applying the Timoshenko kinematic hypothesis and implementing von Mises' failure criteria, becomes more necessary. The objective of this work is presenting a study of the behavior of plane steel frames considering the influence of shear deformations and the concepts of Advanced Inelastic Analysis. The proposed numerical methodology includes the spread of plasticity within the cross section and along the member length, residual stresses and P-∆ and P-δ second-order effects. The inclusion of the effects caused by shear stresses in the plastification of the bars is accomplished by implementing the von Mises model in the PPLANLEP software. At the end, the work intends to show the efficiency of the program by analyzing numerical examples obtained from the literature and demonstrating that the results are more consistent and closer to the real behavior when incorporating the Timoshenko hypothesis and the interaction between normal and shear stress in the consideration of the yielding of material.

BANKING MEMBERS:
Presidente - RENATA GOMES LANNA DA SILVA
Interno - LINEKER MAX GOULART COELHO
Externo à Instituição - ARMANDO CESAR CAMPOS LAVALL - UFMG