Journal ArticleDOI
Genetic algorithms in optimal detailed design of reinforced concrete members
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In this work, genetic algorithms are employed to perform the optimal detailed design of reinforced concrete members of multistory buildings based on a roulette wheel reproduction scheme; single, multiple‐point, and uniform crossover; and constant or variable mutation schemes.Abstract:
Genetic algorithms emulate biologic evolutionary concepts to solve search and optimization problems. In this work, they are employed to perform the optimal detailed design of reinforced concrete members of multistory buildings. The objective is to convert the required reinforcement in square centimeters, given at a number of cross sections, into a set of reinforcing bars of specific diameter and length located at specific places along the member taking into account different criteria and rules of design practice. The anchorage lengths are taken into account, and the bars are cut at appropriate locations. For such problems, enumeration methods lead to expensive solutions, whereas genetic algorithms tend to provide near-optimal solutions in reasonable computing time. The genetic algorithms used in this work are based on a roulette wheel reproduction scheme; single, multiple-point, and uniform crossover; and constant or variable mutation schemes. A constant or variable elitist strategy is also used that passes the best designs of a generation to the next generation. The method decides the detailed design on the basis of a multicriterion objective that represents a compromise between a minimum weight design, a maximum uniformity, and the minimum number of bars for a group of members. By varying the weighting factors, designs with different characteristics result. Various parameters of the genetic algorithm are considered, and the corresponding results are presented.read more
Citations
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Journal ArticleDOI
Multiobjective Optimization of Concrete Frames by Simulated Annealing
TL;DR: A methodology to design RC building frames based on a multiobjective simulated annealing (MOSA) algorithm applied to four objective functions, namely, the economic cost, the constructability, the environmental impact, and the overall safety of RC framed structures.
Journal ArticleDOI
CO2-optimization of reinforced concrete frames by simulated annealing
TL;DR: In this paper, the authors describe a methodology to design reinforced concrete (RC) building frames based on minimum embedded CO 2 emissions and the economic cost of RC framed structures, which involves optimization by a simulated annealing (SA) algorithm applied to two objective functions, namely the embedded carbon dioxide emissions and economic cost.
Journal ArticleDOI
Discrete cost optimization of composite floors using a floating-point genetic algorithm
Hongjin Kim,Hojjat Adeli +1 more
TL;DR: Based on a comparison with example designs presented in the literature it is concluded that a formal cost optimization can result in substantial cost savings.
Journal ArticleDOI
Optimum detailed design of reinforced concrete continuous beams using Genetic Algorithms
V. Govindaraj,J. V. Ramasamy +1 more
TL;DR: In this paper, the authors present the application of genetic algorithms for the optimum detailed design of reinforced concrete continuous beams based on Indian Standard specifications. But they do not consider the steel reinforcement as a variable, the cross-sectional dimensions of the beam alone are considered as the variables in the present optimum design model.
Journal ArticleDOI
CO2 and cost optimization of reinforced concrete frames using a big bang-big crunch algorithm
Charles V. Camp,Farah Huq +1 more
TL;DR: In this paper, a hybrid Big Bang-Big Crunch (BB-BC) optimization algorithm is applied to the design of reinforced concrete frames to minimize the total cost or the CO2 emissions associated with construction.
References
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Book
Genetic algorithms in search, optimization, and machine learning
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.
Book
Handbook of Genetic Algorithms
TL;DR: This book sets out to explain what genetic algorithms are and how they can be used to solve real-world problems, and introduces the fundamental genetic algorithm (GA), and shows how the basic technique may be applied to a very simple numerical optimisation problem.
Journal ArticleDOI
Optimization of Control Parameters for Genetic Algorithms
TL;DR: GA's are shown to be effective for both levels of the systems optimization problem and are applied to the second level task of identifying efficient GA's for a set of numerical optimization problems.
Journal ArticleDOI
Genetic algorithms: a survey
M. Srinivas,Lalit M. Patnaik +1 more
TL;DR: The analogy between genetic algorithms and the search processes in nature is drawn and the genetic algorithm that Holland introduced in 1975 and the workings of GAs are described and surveyed.
Book ChapterDOI
An Analysis of the Interacting Roles of Population Size and Crossover in Genetic Algorithms
TL;DR: It is shown empirically that disruption analysis alone is not sufficient for selecting appropriate forms of crossover, but by taking into account the interacting effects of population size and crossover, a general picture begins to emerge.