Journal ArticleDOI
Integrated wind‐induced response analysis and design optimization of tall steel buildings using Micro‐GA
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In this paper, an integrated procedure for wind-induced response analysis and design optimization for rectangular steel tall buildings based on the random vibration theory and automatic least cost design optimization technique using Micro-Genetic Algorithm (GA).Abstract:
SUMMARY
This paper presents an integrated procedure for wind-induced response analysis and design optimization for rectangular steel tall buildings based on the random vibration theory and automatic least cost design optimization technique using Micro-Genetic Algorithm (GA). The developed approach can predict wind-induced drift and acceleration responses for serviceability design of a tall building; the technique can also provide an optimal resizing design of the building under wind loads to achieve cost-efficient design. The empirical formulas of wind force spectra obtained from simultaneous measurements of surface pressures on various rectangular tall building models in wind tunnel tests are verified testified using a published example. Upon the known wind force spectra, the equivalent static wind loads for every storey, such as along-wind, across-wind and torsional loads, are then determined and applied for structural analysis including estimation of wind-induced responses. An improved form of GAs, a Micro-GA, is adopted to minimize the structural cost/weight of steel buildings subject to top acceleration and lateral drifts constraints with respect to the discrete design variables of steel section sizes. The application and effectiveness of the developed integrated wind-induced response analysis and design optimization procedure is illustrated through a 30-storey rectangular steel building example. Copyright © 2009 John Wiley & Sons, Ltd.read more
Citations
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Journal ArticleDOI
Large scale reliability-based design optimization of wind excited tall buildings
TL;DR: In this paper, a component-wise performance-based design framework is proposed, based on the concept of a directional fragility model that rigorously combines the directional building aerodynamics and climatological information.
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Advances in optimization of highrise building structures
Mais Aldwaik,Hojjat Adeli +1 more
TL;DR: In this paper, a review of interesting work on optimization of high-rise building structures with a focus on large-scale and real-life structures is presented, a few of which involve practicing designers of high rise building structures.
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Design optimization of tall steel buildings by a modified particle swarm algorithm
Saeed Gholizadeh,Fayegh Fattahi +1 more
TL;DR: The main aim of the present study is to propose a modified PSO (MPSO) algorithm for optimization of tall steel buildings and the numerical results demonstrate the computational advantages of the MPSO algorithm.
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Efficient algorithms for the reliability optimization of tall buildings
TL;DR: In this article, a component-wise reliability model is used to rigorously combine the directional building aerodynamics and site specific climatological information, and an efficient reliability-based design optimization scheme is then proposed based on decoupling the traditionally nested optimization loop from the reliability analysis.
Journal ArticleDOI
Towards intelligent structural design of buildings: A BIM-based solution
TL;DR: One of the first solutions capable of automated generation of optimised structural design based on architectural models is presented, designed for tall buildings to incorporate immense complexity, and acts as a blueprint in developing similar systems for simpler buildings.
References
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TL;DR: In this article, the authors present the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields, including computer programming and mathematics.
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Proceedings ArticleDOI
Micro-Genetic Algorithms For Stationary And Non-Stationary Function Optimization
TL;DR: In this article, a small population approach (coined as Micro-Genetic Algorithms--μGA) with some very simple genetic parameters was explored and it was shown that,μGA implementation reaches the near-optimal region much earlier than the SGA implementation.
Journal ArticleDOI
Gust Loading Factors
TL;DR: In this paper, a simplified formulation of factors that can be used in design to evaluate certain dynamic effects of the wind, principally the effects of gusts, is described, and the writer's statistical approach to the problem and the dynamic characteristics that are relevant.
Journal ArticleDOI
Mitigation of motions of tall buildings with specific examples of recent applications
TL;DR: In this article, the authors present an overview of state-of-the-art measures that reduce the structural response of buildings, including a summary of recent work in aerodynamic tailoring and a discussion of auxiliary damping devices for mitigating the wind-induced motion of structures.