Banca de QUALIFICAÇÃO: ERASMO AUGUSTO BEZERRA SILVA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : ERASMO AUGUSTO BEZERRA SILVA
DATE: 30/09/2021
TIME: 14:30
LOCAL: meet.google.com/dmb-wmpu-ord
TITLE:
KEY WORDS:

Structural optimization. Shear wall. Composite building.

PAGES: 35
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Estruturas
SPECIALTY: Estruturas Metálicas
SUMMARY:

The use of shear walls is a popular lateral load resisting system of multi-storey buildings, mainly when other systems become uneconomical, inefficient or have a big architectural impact. The composite version of the system, the concrete core with a steel surround, combines the elevated rigidity of the concrete element with the speed of assembly characteristic of steel structures. In this system, the shear walls withstand all horizontal loads, and therefore, due to the concentration of rigidity, its positioning contributes to the reduction or increase of the torsional effects which the building is subjected. In search of a structural solution for the shear wall layout that minimizes the effect of torsion, meets the requirements of rigidity, strength, stability, functionality and economy, the designer goes through an iterative process of trial and error, which quality and speed of design improvement depends on analytical calculations, past experience, and the designer's intuition. Still, there is no guarantee that the optimum performance of the structure has been achieved. In this context, it is relevant to introduce an optimization tool to automate the design process, leading to safe and economical solutions. The present work proposes to evaluate the application of the genetic algorithm in the shear wall layout conceptual design, through the comparative analysis between building models obtained by the optimal and conventional design process, in relation to horizontal displacements, stability parameters and the consumption of materials. The optimization problem minimizes the structural weight, with restrictions on the resistant capacity of the elements, horizontal displacements, eccentricity between the center of mass and the center of rigidity, and the accessibility to the interior of spaces. The shear wall layout will be encoded in a binary string that represents the activation or deactivation of shear wall sections in a quadricular ground structure in the central region of the building. A computational program in Julia language will be implemented to solve the problem, making use of the evolutionary algorithms package. The optimized and reference models will be analyzed in the TQS design software, whose parameters for the comparative analysis will be obtained. As a result, it is expected to highlight the advantages, as well as the challenges, to introduce optimization tool in the practice of composite building design.

BANKING MEMBERS:
Presidente - 1121075 - ALINE DA SILVA RAMOS BARBOZA
Externo ao Programa - 2279216 - LUCIANO BARBOSA DOS SANTOS
Externo à Instituição - ALEX SANDER CLEMENTE DE SOUZA, - UFSCAR