Connection topology optimization of steel moment frames using metaheuristic algorithms

Alberdi, Ryan; Murren, Patrick; Khandelwal, Kapil

doi:10.1016/j.engstruct.2015.06.014

Cited by 18 publications

(7 citation statements)

References 18 publications

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“…Alberdi vd. [33] tarafından çelik çerçevelerin optimize edildiği çalışmada, birleşimler için dört farklı topoloji tanımlanıp çerçeve optimizasyonu ile birlikte birleşim topoloji optimizasyonu da gerçekleştirmiştir. Jin vd.…”

Section: Kaynaklı Birleşimlerin Optimizasyonuna Dair Literatürde En çOk Bilinen Problem Ragsdell Veunclassified

Çelik Yapıların Kaynaklı Birleşimlerinin Metasezgisel Yöntemlerle Optimum Tasarımı

SEZER¹,

Hiçyılmaz²

2022

Deu Muhendislik Fakultesi Fen Ve Muhendislik

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ÖzBu çalışmada; Jaya, TLBO ve Sinüs-Kosinüs algoritmaları kullanılarak çelik yapıların kaynaklı birleşimlerinin optimum tasarımının yapılması, kullanılan metasezgisel algoritmaların bu çalışmadaki sayısal modeller ekseninde birbirlerine göre avantaj ve dezavantajlarının belirlenmesi ve bu çalışmada ortaya konan Adil Ceza Yöntemi'nin kısıtlı optimizasyon problemlerinin çözümü için kullanılabilirliğinin araştırılması hedeflenmiştir. İlgili hedefler doğrultusunda köşe kaynaklı bir bağlantıdan, Çelik Yapıların Tasarım, Hesap ve Yapımına Dair Esaslar -2018'de belirtilen gereklilikleri sağlayan üç adet sayısal model oluşturulmuştur. Yönetmelikte tanımlanan Yük ve Dayanım Katsayıları ile Tasarım (YDKT) ve Güvenlik Katsayıları ile Tasarım (GKT) yöntemleri için üç farklı popülasyon büyüklüğü kullanılarak 54 farklı analiz gerçekleştirilmiştir. Yapılan incelemeler neticesinde, ele alınan algoritmaların çelik yapıların kaynaklı birleşimlerin optimizasyonu için uygun olduğu anlaşılmış olup algoritmaların birbirlerine göre avantaj ve dezavantajları ortaya konulmuştur. Bununla beraber, bu çalışmada sunulan Adil Ceza Yöntemi'nin kısıtlı optimizasyon problemlerinin çözümünde kullanılabilir olduğu görülmüştür.

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Section: Kaynaklı Birleşimlerin Optimizasyonuna Dair Literatürde En çOk Bilinen Problem Ragsdell Veunclassified

Çelik Yapıların Kaynaklı Birleşimlerinin Metasezgisel Yöntemlerle Optimum Tasarımı

SEZER¹,

Hiçyılmaz²

2022

Deu Muhendislik Fakultesi Fen Ve Muhendislik

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“…Concerning the optimisation of spherical nodes in space frames, the work by Hassani et al [364] is particularly relevant for providing a holistic guideline, including fabrication concerns, practical issues with Grasshopper modelling, as well as results post-processing and interpretation. Likewise, the work by Alberdi et al [431] on the connections topology optimisation in Moment Resisting Frames (MRF) is deemed to assist structural designers in the task of managing the recursive task of designing frames and its joints.…”

Section: Joints Detailingmentioning

confidence: 99%

Topology Optimisation in Structural Steel Design for Additive Manufacturing

2021

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Topology Optimisation is a broad concept deemed to encapsulate different processes for computationally determining structural materials optimal layouts. Among such techniques, Discrete Optimisation has a consistent record in Civil and Structural Engineering. In contrast, the Optimisation of Continua recently emerged as a critical asset for fostering the employment of Additive Manufacturing, as one can observe in several other industrial fields. With the purpose of filling the need for a systematic review both on the Topology Optimisation recent applications in structural steel design and on its emerging advances that can be brought from other industrial fields, this article critically analyses scientific publications from the year 2015 to 2020. Over six hundred documents, including Research, Review and Conference articles, added to Research Projects and Patents, attained from different sources were found significant after eligibility verifications and therefore, herein depicted. The discussion focused on Topology Optimisation recent approaches, methods, and fields of application and deepened the analysis of structural steel design and design for Additive Manufacturing. Significant findings can be found in summarising the state-of-the-art in profuse tables, identifying the recent developments and research trends, as well as discussing the path for disseminating Topology Optimisation in steel construction.

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“…Conventional Genetic Algorithm (GA) has been extensively used to find the best design solutions for different types of structural components and connections (Bel Hadj Ali et al, 2009, Ramires et al, 2012, Alberdi et al, 2015. In this study, a Real-Coded Genetic Algorithm (RC-GA) (Pathan et al, 2018) was adopted to obtain CFS bolted moment connections with maximum ultimate load-bearing capacity (see Eq.…”

Section: Real-coded Genetic Algorithmmentioning

confidence: 99%

Design and Optimization of Cold-Formed Steel Sections in Bolted Moment Connections Considering Bimoment

et al. 2020

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The load transfer mechanism in cold-formed steel (CFS) bolted moment connections is mainly through the bolt-group in the web of beam elements, which may lead to relatively large bimoment and warping deformation. While the bimoment effects can be considered in the Direct Strength Method (DSM), ignoring the bolt-group length in the conventional design process can lead to non-conservative solutions. This paper presents an alternative analytical design approach using Eurocode 3 (EC3) effective width method to determine the ultimate flexural strength of CFS bolted moment connections by considering bimoment effects. The results compare very well with previously published experimental test data as well as detailed finite element models developed in this study. It is shown that a short boltgroup length may lead to up to 25% reduction in the flexural strength of the CFS bolted connections.However, a longer bolt-group length generally results in a moment capacity almost equal to the flexural strength of the CFS channel section. Shape optimisation is then conducted using a Genetic Algorithm (GA) to improve the flexural capacity of the connections by taking into account the bimoment effects.The main design variables are considered to be the relative CFS beam cross-sectional dimensions, while the plate slenderness and dimension limits suggested by EC3 as well as a number of manufacturing and practical end-use constraints are incorporated as design constraints. It is found that, compared with standard cross-sectional dimensions, the optimised sections can improve the flexural strength by as much as 36% for the bolt-group length equal to the depth of beam element.

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Connection topology optimization of steel moment frames using metaheuristic algorithms

Cited by 18 publications

References 18 publications

Çelik Yapıların Kaynaklı Birleşimlerinin Metasezgisel Yöntemlerle Optimum Tasarımı

Çelik Yapıların Kaynaklı Birleşimlerinin Metasezgisel Yöntemlerle Optimum Tasarımı

Topology Optimisation in Structural Steel Design for Additive Manufacturing

Design and Optimization of Cold-Formed Steel Sections in Bolted Moment Connections Considering Bimoment

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