Performance-based topology optimization for wind-excited tall buildings: A framework

Bobby, Sarah; Spence, Seymour M.J.; Bernardini, Enrica; Kareem, Ahsan

doi:10.1016/j.engstruct.2014.05.043

Cited by 48 publications

(17 citation statements)

References 48 publications

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“…Bobby et al . () present a performance‐based topology optimization framework developed for wind sensitive tall buildings. The framework is based on decoupling the performance‐based assessment from the topology optimization problem through the definition of a number of approximate sub‐problems.…”

Section: Introductionmentioning

confidence: 99%

An inter-story drift-based parameter analysis of the optimal location of outriggers in tall buildings

Zhou

Cuiqiang²,

Li³

2015

Struct. Design Tall Spec. Build.

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Summary Outriggers are usually added in structural systems of tall buildings to collaborate central shear walls with peripheral columns. With outriggers, the structural overturning moment can be balanced, and the inter‐story drift can be controlled under horizontal loads. Therefore, the optimal location of outriggers plays a very important role in controlling the behavior of the whole building. Existing research has focused on the optimal position of outriggers on the base of the structural roof deflection. In the engineering practice, however, inter‐story drift is the most important target to control the design of tall building structures. This paper investigates the theoretical method of inter‐story drift‐based optimal location of outriggers. A Matlab program is written to perform the parameter analysis of optimal location of outriggers. Take a 240‐m tall building for a target building, the optimal location of one to three sets of outriggers under wind and earthquakes is obtained and can be utilized for the structural preliminary design of tall buildings. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

An inter-story drift-based parameter analysis of the optimal location of outriggers in tall buildings

Zhou

Cuiqiang²,

Li³

2015

Struct. Design Tall Spec. Build.

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“…Among the RESs, wind power has become more attractive due to its short gestation period, mature level of technology, and negligible environmental pollution [4][5][6][7]. Consequently, many countries have set strategic plans to develop technologies for supporting sustainable wind power development, especially in areas with rich wind energy sources [8]. However, off-grid wind power systems have greater advantages in remote places such as mountainous areas, islands, coastal areas, and other places where wind energy is abundant and where it is temporarily unable to achieve grid-connected power supply [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

An Importance Analysis–Based Weight Evaluation Framework for Identifying Key Components of Multi-Configuration Off-Grid Wind Power Generation Systems under Stochastic Data Inputs

Bin

Pan

et al. 2019

Energies

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Wind power systems have great potential due to its inexhaustible nature and benign environmental impacts. Especially in remote areas, where wind is plentiful, but it is difficult to get grid-connected power, an off-grid wind power system is an effective alternative for power supply. Reliable and safe operation of the generating system are essential for electricity production and supply. Importance analysis to identify key components of the system is a critical part of reliability assessment. This paper proposes an importance analysis–based weight evaluation framework for identifying key components of multi-configuration off-grid wind power generation systems under stochastic inputs. In the framework, the joint importance analysis based on Birnbaum importance and Criticality importance are introduced to analyze the system reliability and failure rate. Wind speed with stochastic characteristics, load demand with multiple scenarios, and energy transfer with different paths are also merged into the evaluation framework. The results reveal that the rectifier, battery, discharge load, and valve controller dominate the reliability of the off-grid wind power generation system. High priority should be placed on these components during the design phase and maintenance stage. The proposed approach is a positive step forward in promoting component importance analysis and providing more theoretical supports in system design, reliability analysis, and monitoring scheme formulation.

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“…．Flager らはトラス構造の重量最小化(大規模問題)を目的とした FCD(Fully Constrained Design)法を提案している ) ．この他にも多くの寸法最適化を取り扱った研究が報告されているが，そのほとんどは重量最小化を目的としたものである ( ，，， ) ，， ) ．また，寸法最適化をベースに形状最適化も同時に行う研究( (Fuerle and Sienz, 2013) ， )も報告されている．位相最適化(グランドストラクチャ)を取り扱った研究として，Bobby らが風荷重を受ける高層ビルの重量最小化を目的として Performance-based トポロジー最適化を提案している (Bobby, et al, 2014) ．Albanesi らは医療機器への応用を目的とした IFEM(inverse finite element method)を用いたコンプライアントメカニズム設計手法を提案している (Albanesi, et al, 2013) ．Ohsaki らは建築でのアーチ，屋根，壁などに用いることを目的とし，柔な変形機構を持つメカニズムが指定変形特性を有するように，Tabu search 法を用いた節点位置，部材断面積の最適化を提案している )や Cea ，Zolesio らのフランスの数学者らによって提案された古典的な手法である…”

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Parameter-free shape identification method for frame structure with desired static deformation

Shimoda

Kameyama

2015

Transactions of the JSME (In Japanese)

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In this paper, a free form optimization method is proposed for achieving a desired static deformation of a frame structure. Deformation control is one of the important problems in stiffness design of frame structures, and it also enables to give a function to frame structures. As an objective functional, we introduce the sum of squared error norms to the desired displacements on specified members, and the assumption that each frame member varies in the off-axis direction. The shape gradient function and the optimality conditions for this problem are theoretically derived with the Lagrange multiplier method and the material derivative method. The optimal shape variation that minimizes the objective functional is determined as the displacement-field by applying the negative shape gradient function as fictitious external forces to the frame members. With the proposed method, the optimal arbitrarily formed frame structure can be obtained without any shape parameterization while maintaining the smoothness. The validity and practical utilities of this method for the static deformation control of frame structures are verified through design examples.

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Performance-based topology optimization for wind-excited tall buildings: A framework

Cited by 48 publications

References 48 publications

An inter-story drift-based parameter analysis of the optimal location of outriggers in tall buildings

An inter-story drift-based parameter analysis of the optimal location of outriggers in tall buildings

An Importance Analysis–Based Weight Evaluation Framework for Identifying Key Components of Multi-Configuration Off-Grid Wind Power Generation Systems under Stochastic Data Inputs

Parameter-free shape identification method for frame structure with desired static deformation

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