Browsing by Author "Bakas, Nikolaos"
Now showing items 1-16 of 16
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Advances in design optimization of reinforced concrete structural designs
Mitropoulou, Chara C.; Bakas, Nikolaos; Lagaros, Nikos D.; Papadrakakis, Manolis (Taylor & Francis, 2008)In this work a number of design approaches for 3D reinforced concrete (RC) buildings are formulated in the framework of structural optimization problems and they are assessed in terms of structural performance under ...
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Assessment of Code’s Torsional Provisions using Evolutionary Optimization Algorithms
Bakas, Nikolaos; Lagaros, N. D.; Papadrakakis, M. (Eccomas, 2007)The increasing necessity to solve complex problems in Structural Dynamics and Earthquake Engineering requires the development of new ideas and innovative methods for providing accurate numerical solutions in affordable ...
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Assessment of Design Recommendations for Torsionally Unbalanced Structures Using Structural Optimization
Bakas, Nikolaos; Lagaros, N. D.; Papadrakakis, M. (Civil-Comp Press, 2008)In this work a number of design approaches for 3D Reinforced Concrete (RC) buildings are formulated as structural optimization problems and are assessed in terms of their performance under earthquake loading. In particular, ...
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Automatic Minimization of the Rigidity Eccentricity of 3D Reinforced Concrete Buildings
Lagaros, Nikolaos D.; Papadrakakis, Nikolaos; Bakas, Nikolaos (Taylor & Francis, 2007)The objective of this paper is to obtain the optimum design of 3D reinforced concrete buildings in terms of their performance under earthquake loading. This goal is achieved by considering the minimization of the ...
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Building houses with bacteria
Bakas, Nikolaos; Piero Tiano, Linda Wittig (2014-10-20)Houses of the future could be partially built with bacteria. It sounds like science fiction but researchers involved in an EU-backed project in Madrid are working towards making this a concrete reality.
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Earthquake resistant optimum design of 3d reinforced concrete buildings
Bakas, Nikolaos; Lagaros, N. D.; Papadrakakis, M. (WCCM, 2006)Designing earthquake resistant structures has been the subject of great concern among engineers and scientists. The vertical seismic resisting elements in particular, in connection with the beam and the plates in a reinforced ...
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Forecasting and uncertainty: A survey
Makridakis, Spyros; Bakas, Nikolaos (IOS Press, 2016)The origins of forecasting can be traced back to the beginning of human civilization with attempts to predict the weather, although forecasting as a field first appeared in the 1940s and attracted more followers from the ...
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Form finding of architectural artifacts using genetic algorithms. A novel approach of handling parametric objects as design variables
Varlagkas, Nikolaos; Antoniou, Dimitrios; Bakas, Nikolaos (2016)This work aims to contribute on the form finding techniques of generative space artifacts, considering objects of parametric design as programming objects, and in particular design variables –due to parametric approach- ...
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Minimizing the Torsional Response of RC Buildings Under Earthquake Loading
Bakas, Nikolaos; Lagaros, N. D.; Papadrakakis, M. (South-East European Conference on Computational Mechanics, 2006)In this work a number of design approaches for 3D Reinforced Concrete (RC) buildings are formulated as structural optimization problems and are assessed in terms of the performance under earthquake loading. In particular ...
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Nature Inspired Form Finding Strategies Assessment using Genetic Algorithms
Antoniou, Dimitrios; Artopoulos, Georgios; Bakas, Nikolaos; Liassides, Ioakeim; Varlagkas, Nikolaos; Georgiou, Giannis; Demetriou, Katerina; Karagiannidi, Savvolu (IEEE Computer Society, 2015)In this work, several topology generation procedures have been implemented on architectural surfaces combined with urban forms. Delaunay triangulation, Voronoi diagrams and the recently proposed [1, 2, 3] Voronax diagram, ...
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A new method for assessing tortional effects in irregular buildings
Bakas, Nikolaos; Lagaros, N.D; Papadrakakis, M. (Institute of Structural Analysis & Seismic Research, National Technical University of Athens, 2009)The increasing necessity to solve complex problems in Structural Dynamics and Earthquake Engineering requires the development of new ideas and innovative methods for providing accurate numerical solutions in affordable ...
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A new methodology, extending the inversed catenary form finding method of Antonio Gaudi to generative space shells
Georgiou, Ioannis; Antoniou, Dimitrios; Bakas, Nikolaos (Eccomas, 2016-06)This work aims to constitute an algorithmic framework for the automatic creation of compression only forms of generative space shells. In particular the case of concrete dams is investigated, where the loading is non-uniform ...
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Numerical aspects of incremental dynamic analysis for the retrofitting of existing industrial steel building utilizing SSCD dampers
Bellos, John; Bakas, Nikolaos; Castiglioni, Carlo (2017)In this work, the nonlinear analysis of an existing industrial steel structure (Sodium building), and its retrofitting using SSCD dampers is demonstrated. Specific numerical complications of incremental dynamic (IDA) and ...
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Optimum Design Approaches for Improving the Seismic Performance of 3D RC Buildings
Lagaros, Nikolaos D.; Bakas, Nikolaos; Papadrakakis, Manolis (Taylor & Francis, 2009-03-28)In this article, a number of design approaches for 3D reinforced concrete (RC) buildings are formulated in the framework of structural optimization problems and are assessed in terms of their performance under earthquake ...
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Substratum Assessment of Various Minimum Torsional Design Philosophies via Structural Optimization Techniques
Bakas, Nikolaos; Lagaros, Nikos D.; Papadrakakis, Manolis (WCCM, 2008)A number of articles have been published, studying the issue of torsional response of reinforced concrete (RC) buildings [1], the majority of them were focused on the strength of the structural elements or the structure ...
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Torsional design criteria in building codes and comparison with more accurate modeling using structural optimization tools
Bellos, John; Bakas, Nikolaos (4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, 2013)It is widely accepted that seismic design philosophies do not follow the efficiency of seismic analysis methods is quite remarkable. Torsionally unbalanced structures, is a common field where any of the proposed design ...