Optimum Seismic Design of Steel Buildings Using Genetic Algorithms
Author: Salah R. Al Zaidee
Publisher:
Published: 2017-05-19
Total Pages: 156
ISBN-13: 9783330070417
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Optimum Design of Steel Structures
Author: József Farkas
Publisher: Springer Science & Business Media
Published: 2013-03-29
Total Pages: 278
ISBN-13: 3642368689
DOWNLOAD EBOOKThis book helps designers and manufacturers to select and develop the most suitable and competitive steel structures, which are safe, fit for production and economic. An optimum design system is used to find the best characteristics of structural models, which guarantee the fulfilment of design and fabrication requirements and minimize the cost function. Realistic numerical models are used as main components of industrial steel structures. Chapter 1 containts some experiences with the optimum design of steel structures Chapter 2 treats some newer mathematical optimization methods. Chapter 3 gives formulae for fabrication times and costs. Chapters 4 deals with beams and columns. Summarizes the Eurocode rules for design. Chapter 5 deals with the design of tubular trusses. Chapter 6 gives the design of frame structures and fire-resistant design rules for a frame. In Chapters 7 some minimum cost design problems of stiffened and cellular plates and shells are worked out for cases of different stiffenings and loads. Chapter 8 gives a cost comparison of cylindrical and conical shells. The book contains a large collection of literatures and a subject list and a name index.
Metaheuristic Applications in Structures and Infrastructures
Author: Siamak Talatahari
Publisher: Elsevier Inc. Chapters
Published: 2013-01-31
Total Pages: 27
ISBN-13: 0128066407
DOWNLOAD EBOOKStructural Seismic Design Optimization and Earthquake Engineering: Formulations and Applications
Author: Plevris, Vagelis
Publisher: IGI Global
Published: 2012-05-31
Total Pages: 456
ISBN-13: 1466616415
DOWNLOAD EBOOKThroughout the past few years, there has been extensive research done on structural design in terms of optimization methods or problem formulation. But, much of this attention has been on the linear elastic structural behavior, under static loading condition. Such a focus has left researchers scratching their heads as it has led to vulnerable structural configurations. What researchers have left out of the equation is the element of seismic loading. It is essential for researchers to take this into account in order to develop earthquake resistant real-world structures. Structural Seismic Design Optimization and Earthquake Engineering: Formulations and Applications focuses on the research around earthquake engineering, in particular, the field of implementation of optimization algorithms in earthquake engineering problems. Topics discussed within this book include, but are not limited to, simulation issues for the accurate prediction of the seismic response of structures, design optimization procedures, soft computing applications, and other important advancements in seismic analysis and design where optimization algorithms can be implemented. Readers will discover that this book provides relevant theoretical frameworks in order to enhance their learning on earthquake engineering as it deals with the latest research findings and their practical implementations, as well as new formulations and solutions.
Seismic Design Optimization of Steel Structures Using Genetic Algorithm
Author: Tiancheng Wang
Publisher:
Published: 2020
Total Pages: 85
ISBN-13:
DOWNLOAD EBOOKThe Genetic Algorithm (GA) was selected for application to design optimization of braced steel moment resisting frame (MRF) structures. A MATLAB program was developed that uses GA for diagonal braces optimization of two-dimensional three-story and nine-story frame structures. The soGA program was used to find an optimal solution from a large search space with different design variables in a reasonable length of time with a fully automated process. Established computational models can simulate the nonlinear behavior of 3- and 9-story steel MRFs under different earthquakes by using OpenSees software. Plastic hinges and Bilin material were used to simulate the plastic stage of Reduced Beam Section (RBS) during nonlinear time history analyses. The final design obtained by the soGA program was compared to the base structures without braces, in terms of maximum story drift ratio and maximum floor acceleration during nonlinear time history seismic analyses.
Optimization Of Structural And Mechanical Systems
Author: Jasbir S Arora
Publisher: World Scientific
Published: 2007-09-05
Total Pages: 610
ISBN-13: 9814477222
DOWNLOAD EBOOKComputational optimization methods have matured over the last few years due to extensive research by applied mathematicians and engineers. These methods have been applied to many practical applications. Several general-purpose optimization programs and programs for specific engineering applications have become available to solve particular optimization problems.Written by leading researchers in the field of optimization, this highly readable book covers state-of-the-art computational algorithms as well as applications of optimization to structural and mechanical systems. Formulations of the problems and numerical solutions are presented, and topics requiring further research are also suggested.
Probabilistic Performance-based Seismic Design Automation of Nonlinear Steel Structures Using Genetic Algorithms
Author: Arzhang Alimoradi
Publisher:
Published: 2004
Total Pages: 392
ISBN-13:
DOWNLOAD EBOOKHandbook of AI-based Metaheuristics
Author: Anand J. Kulkarni
Publisher: CRC Press
Published: 2021-09-01
Total Pages: 419
ISBN-13: 1000434249
DOWNLOAD EBOOKAt the heart of the optimization domain are mathematical modeling of the problem and the solution methodologies. The problems are becoming larger and with growing complexity. Such problems are becoming cumbersome when handled by traditional optimization methods. This has motivated researchers to resort to artificial intelligence (AI)-based, nature-inspired solution methodologies or algorithms. The Handbook of AI-based Metaheuristics provides a wide-ranging reference to the theoretical and mathematical formulations of metaheuristics, including bio-inspired, swarm-based, socio-cultural, and physics-based methods or algorithms; their testing and validation, along with detailed illustrative solutions and applications; and newly devised metaheuristic algorithms. This will be a valuable reference for researchers in industry and academia, as well as for all Master’s and PhD students working in the metaheuristics and applications domains.
Multiobjective Optimum Design of Static and Seismic-resistant Structures with Genetic Algorithm, Fuzzy Logic and Game Theory
Author: Dan Li
Publisher:
Published: 1997
Total Pages: 408
ISBN-13:
DOWNLOAD EBOOK"The goal of this research is to develop a constrained multiobjective optimization method in the form of a robust, practical, problem-independent algorithm, and to investigate the effect of multiobjective optimization on structural design. This research studies the properties and characteristics of multiobjective optimization and solutions. Design objectives, constraints and design variables as well as their effect on structural design and behaviors are investigated. Dynamic input energy for a multidegree-of-freedom structure is formulated. A multiobjective optimization algorithm based on game theory is developed. Fuzzy set theory is introduced to construct a fuzzy constrained environment. A Pareto genetic algorithm is developed based on a simple genetic algorithm. Two new genetic algorithm operators -- multiobjective fitness function and niche method -- are proposed. A new genetic algorithm process -- Pareto set filter -- is added to genetic algorithms. Finally, a multiobjective optimization algorithm, which is robust and performs uniformly well on a broad range of problems, is developed with genetic algorithm, fuzzy logic and game theory. Six frame structures and five truss structures have been optimally designed with static load, seismic excitation, and active control. Materials for the structures are steel, reinforced concrete, and a combination of both. Optimization goals cover weight, structural cost, displacement, strain energy, input energy, potential energy, and performance index. Constraints include stress, displacement, frequency, and ratio of story stiffness. The numerical results show that the newly developed algorithms can locate a global solution and Pareto optimum set which are usually difficult to find"--Abstract, leaf iii.
Harmony Search Algorithms for Structural Design Optimization
Author: Zong Woo Geem
Publisher: Springer Science & Business Media
Published: 2009-09-28
Total Pages: 232
ISBN-13: 3642034497
DOWNLOAD EBOOKVarious structures, such as buildings, bridges, and paved roads play an important role in our lives. However, these construction projects require large expenditures. Designing infrastructure cost-efficiently while satisfying all necessary design constraints is one of the most important and difficult tasks for a structural engineer. Traditionally, mathematical gradient-based optimization techniques have been applied to these designs. However, these gradient-based methods are not suitable for discrete design variables such as factory-made cross sectional area of structural members. Recently, researchers have turned their interest to phenomenon-mimicking optimization techniques because these techniques have proved able to efficiently handle discrete design variables. One of these techniques is harmony search, an algorithm developed from musical improvisation that has been applied to various structural design problems and has demonstrated cost-savings. This book gathers all the latest developments relating to the application of the harmony search algorithm in the structural design field in order for readers to efficiently understand the full spectrum of the algorithm’s potential and to easily apply the algorithm to their own structural problems. This book contains six chapters with the following subjects: standard harmony search algorithm and its applications by Lee; standard harmony search algorithm for steel frame design by Degertekin; adaptive harmony search algorithm and its applications by Saka and Hasançebi; harmony particle swarm algorithm and its applications by Li and Liu; hybrid algorithm of harmony search, particle swarm & ant colony for structural design by Kaveh and Talatahari; and parameter calibration of viscoelastic and damage functions by Mun and Geem.
