Optimum design of steel braced frames considering dynamic soil-structure interaction

Bybordiani, Milad; Azad, Saeid Kazemzadeh

doi:10.1007/s00158-019-02260-4

Cited by 24 publications

(5 citation statements)

References 22 publications

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“…where A is the cross-sectional area of the contact point between the yarn and the needle tip, σ is the allowable stress of the steel needle, and n is a safety factor. Combining equations (11) and (16) gives…”

Section: Force Analysis Of Steel Needle Under Yarn Tensionmentioning

confidence: 99%

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Reducing the Collision Damage Done to the Tips of Steel Needles during Integrated Piercing by Using Shape Optimization with Feature Selection

Yang

Dong

Jiang

et al. 2020

Mathematical Problems in Engineering

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Recent research has shown that, during integrated piercing, the yarn tension can displace the needles from the centers of the holes in the piercing template. To reduce the damage done to the needle tips when the needles and the hole walls collide when the needle displacement is too large, this paper proposes a method for optimizing the needle shape that satisfies the strength constraint while targeting minimum needle displacement. First, the optimal objective function and strength constraint conditions for the tip displacement of the integrated puncture needle are established, which are affected by many factors. Then, the feature selection method of machine learning is used to reduce the dimensionality of the objective function after data reduction, and the feasible region of key features is reduced to avoid falling into the local best point in the optimization iteration. Finally, machine vision is used to measure experimentally the tip displacement of a needle array. The results show that the average tip displacement is reduced by 18.16–31.42% and the collision risk is reduced from 43.14% to 5.54%. It shows that the optimization method of needle shape based on feature selection is effective for reducing needle tip impact damage during integrated piercing.

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Section: Force Analysis Of Steel Needle Under Yarn Tensionmentioning

confidence: 99%

“…Truss structure optimization with application diversity is one of the most popular problems in civil engineering [12][13][14][15][16][17][18][19]. Truss optimization includes three types: section shape, geometry, and topology.…”

Section: Introductionmentioning

confidence: 99%

Reducing the Collision Damage Done to the Tips of Steel Needles during Integrated Piercing by Using Shape Optimization with Feature Selection

Yang

Dong

Jiang

et al. 2020

Mathematical Problems in Engineering

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“…For sizing optimization of buildings, previous studies mainly targeted at small-scale problems such as low-rise planar or three-dimensional steel frame structures (Bybordiani and Kazemzadeh Azad, 2019; Hasançebi and Azad, 2019; Kaveh and Ilchi Ghazaan, 2017), but the optimization of high-rise concrete buildings is rarely addressed due to the large number of variables and the implicit objective and constraint functions. The response surface methodology provides a way to solve such black-box problems.…”

Section: Introductionmentioning

confidence: 99%

A practical discrete sizing optimization methodology for the design of high-rise concrete buildings

Lou

Xiao

Wan

et al. 2022

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PurposeIn this article, a practical design methodology is proposed for discrete sizing optimization of high-rise concrete buildings with a focus on large-scale and real-life structures.Design/methodology/approachThis framework relies on a computationally efficient approximation of the constraint and objective functions using a radial basis function model with a linear tail, also called the combined response surface methodology (RSM) in this article. Considering both the code-stipulated constraints and other construction requirements, three sub-optimization problems were constructed based on the relaxation model of the original problem, and then the structural weight could be automatically minimized under multiple constraints and loading scenarios. After modulization, the obtained results could meet the discretization requirements. By integrating the commercially available ETABS, a dedicated optimization software program with an independent interface was developed and details for practical software development were also presented in this paper.FindingsThe proposed framework was used to optimize different high-rise concrete buildings, and case studies showed that material usage could be saved by up to 12.8% compared to the conventional design, and the over-limit constraints could be adjusted, which proved the feasibility and effectiveness.Originality/valueThis methodology can therefore be applied by engineers to explore the optimal distribution of dimensions for high-rise buildings and to reduce material usage for a more sustainable design.

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“…[ 10 ] In recent decades, several researches have been done in the different areas of the structural optimization field in order to design efficient structures. [ 11–19 ]…”

Section: Introductionmentioning

confidence: 99%

Optimal design of 3D special steel buckling‐restrained braced structures

Kaveh

Moghanni

Javadi

2021

Structural Design Tall Build

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Summary In the current study, the optimal design of 3D frames equipped with buckling restrained braces is presented. The objective function in the optimization problem is considered as weight minimization subjected to serviceability and strength requirements. Three different metaheuristic algorithms including Particle Swarm Optimization (PSO) algorithm, Teaching Learning Based Optimization (TLBO) algorithm, and Discrete Firefly Algorithm (DFA) are utalized to solve the optimization problem. Response spectrum analysis is considered to examine the performance of the structures during the optimization process under applied loads. Two real‐size steel structures with buckling restrained braces are selected to perform optimal design. The results demonstrate that the TLBO algorithm has better performance in discrete structural optimization.

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Optimum design of steel braced frames considering dynamic soil-structure interaction

Cited by 24 publications

References 22 publications

Reducing the Collision Damage Done to the Tips of Steel Needles during Integrated Piercing by Using Shape Optimization with Feature Selection

Reducing the Collision Damage Done to the Tips of Steel Needles during Integrated Piercing by Using Shape Optimization with Feature Selection

A practical discrete sizing optimization methodology for the design of high-rise concrete buildings

Optimal design of 3D special steel buckling‐restrained braced structures

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