Structural Topology Optimization of Braced Steel Frameworks Using Genetic Programming

Baldock, Robert John Nicholas; Shea, Kristina

doi:10.1007/11888598_6

Cited by 16 publications

(12 citation statements)

References 9 publications

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“…Research on optimizing lateral bracing systems of tall buildings through both gradient and heuristic methods can be found in [1], [2], [3], [4], [5] and [6].…”

Section: Introductionmentioning

confidence: 99%

An Optimized Bracing System for Distributed Lateral Loads

Jacot¹,

Pagonakis²,

Shope³

et al. 2017

Annual International Conference on Architecture and Civil Engineering (ACE 2017)

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Abstract-One of the most crucial components of a tall building is its lateral loading system. In this paper, we provide the development of a lateral bracing system that results in bracing material savings of up to 50% relative to a traditional X-Bracing system, as well as lighter corner columns due to the more efficient load paths of the lateral forces to the base. The solution naturally follows a linearized funicular curve, and the result provides a reasonable and replicable system from a manufacturing standpoint.

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“…Research on optimizing lateral bracing systems of tall buildings through both gradient and heuristic methods can be found in [1], [2], [3], [4], [5] and [6].…”

Section: Introductionmentioning

confidence: 99%

An Optimized Bracing System for Distributed Lateral Loads

Jacot¹,

Pagonakis²,

Shope³

et al. 2017

Annual International Conference on Architecture and Civil Engineering (ACE 2017)

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“…Other than the above, there have been studies on the spatial layout optimization. For example, two separate optimization models have been developed to model different part of the building layout design problem in [3] where Genetic Algorithms and Simulated Annealing optimization algorithms are used to solve the problems. An evolutionary algorithm for architectural layout design was proposed in [4].…”

Section: Introductionmentioning

confidence: 99%

Evolutionary computation for architectural design of restaurant layouts

Ugurlu

Chatzikonstantinou

Sarıyıldız

et al. 2015

2015 IEEE Congress on Evolutionary Computation (CEC)

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This paper presents the results obtained by NSGA-II and DE on a restaurant layout optimization problem, trying to maximize total profit while minimizing investment. The problem entails the configuration of restaurant functions, the decisions regarding the restaurant shell composition (fraction and position of windows, dimensions), and how to shape and place the kitchen and service areas. The NSGA-II and DE algorithms are implemented in a Parametric Design Environment that is familiar in the architectural practice. We demonstrate that the DE algorithm achieves slightly better performance in terms of hypervolume calculation, and achieve promising results when the Pareto front approximation is examined. To the best of our knowledge, this is the first application of multi-objective approach for restaurant design. Keywords-layout design, multi-objective optimization, parametric model, evolutionary algorithms, pareto, architectural design978-1-4799-7492-4/15/$31.00 ©2015 IEEE

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“…Al paso del tiempo, se identificó a la rigidez lateral como la propiedad estructural más relevante del edificio, y esto llevó al planteamiento de varias propuestas basadas en rigidez enfocadas al caso de modelos estructurales que permanecen elásticos y que son sujetos a cargas laterales constantes y a restricciones varias en términos de resistencia y distorsión (Kim et al, 1998;Kameshki y Saka, 2001). En algún momento, los investigadores fueron más allá del dimensionado de elementos estructurales para una configuración dada, y propusieron métodos evolutivos basados en desempeño para establecer la topología óptima para el sistema de contraventeo de edificios de acero de varios pisos que permanecen elásticos bajo la acción de cargas laterales estáticas (Liang et al, 2000;Baldock y Shea, 2006). Además, se llegaron a proponer metodologías basadas en el control de las distorsiones que toman en cuenta la interacción que se da entre las propiedades dinámicas del sistema estructural y las del movimientos del terreno (Park y Kwon, 2003;Zou y Chan, 2005).…”

Section: Introductionunclassified

Dimensionado Preliminar Basado en Rigidez De Edificios Altos Con Estructura De Acero Rigidizados Con Diagonales Concéntricas

Gilmore

Galaz²

2014

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RESUMENSe presenta una metodología para el dimensionado preliminar de un sistema resistente a sismos estructurado con base en marcos de acero rigidizados con diagonales concéntricas. La metodología aplica para el caso de edificios altos, cuya respuesta queda influida por componentes de deformación global en flexión y por el efecto de modos superiores de vibrar. Se presenta el dimensionado preliminar de los elementos estructurales de diferentes versiones de un sistema de contraventeo para un edificio de 24 pisos. A partir de la evaluación de las características dinámicas de las diferentes versiones del sistema de contraventeo, se concluye que la metodología propuesta conduce a un dimensionado adecuado durante el diseño preliminar basado en desempeño de edificios altos de acero contraventeados.Palabras clave: dimensionado basado en rigidez; diseño basado en desplazamientos; sistemas de contraventeo; deformación lateral global en corte; deformación lateral global en flexión STIFFNESS-BASED PRELIMINARY SIZING OF TALL BUILDINGS HAVING A STEEL STRUCTURE WITH CONCENTRIC BRACES ABSTRACTA methodology for the preliminary sizing of an earthquake-resistant system composed of steel frames and concentric braces is discussed. The methodology applies to the case of tall buildings, whose dynamic response is influenced by global bending deformations and the effect of higher modes of vibration. The preliminary sizing of the structural members of different versions of a bracing system for a 24-story building is presented. From the evaluation of the dynamic characteristics of the different versions of the bracing system, it is concluded that the use of the proposed methodology yields an adequate sizing during the preliminary performance-based design of tall braced steel buildings.

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Structural Topology Optimization of Braced Steel Frameworks Using Genetic Programming

Cited by 16 publications

References 9 publications

An Optimized Bracing System for Distributed Lateral Loads

An Optimized Bracing System for Distributed Lateral Loads

Evolutionary computation for architectural design of restaurant layouts

Dimensionado Preliminar Basado en Rigidez De Edificios Altos Con Estructura De Acero Rigidizados Con Diagonales Concéntricas

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