Optimal design of planar RC frames considering CO2 emissions using ECBO, EVPS and PSO metaheuristic algorithms

Kaveh, A.; Izadifard, Ramezan Ali; Mottaghi, L.

doi:10.1016/j.jobe.2019.101014

Cited by 133 publications

(20 citation statements)

References 17 publications

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“…In this study, an advanced version of the CBO [19] known as the ECBO algorithm [20] is used to optimize the problem. In the previous studies the authors [9,11,21] have compared the performance of the algorithms such as VPS, PSO, CBO and ECBO, concluding that ECBO has better performance for the present problem, and therefore in this study ECBO is employed as the optimization tool. This algorithm is also presented and discussed in the comprehensive book on many metaheuristic algorithms [22].…”

Section: Optimization Algorithmmentioning

confidence: 99%

“…Construction industry has a remarkable contribution on GHG, and carbon dioxide (CO 2 ) is a major part of it. Studies have employed the strategies to reduce the CO 2 emissions from the reinforced concrete (RC) structure, one of which is the use of optimization techniques during the design phase of RC frames [7][8][9][10][11][12]. Studies have been conducted to reduce CO 2 emissions on bridges.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Columns and Bent Caps of RC Bridges for Cost and CO2 Emission

Kaveh

Mottaghi

Izadifard

2022

Period. Polytech. Civil Eng.

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This paper describes a methodology for optimal seismic design of reinforced concrete 3D columns and bent caps (beams) of bridges. Design variables include compressive strength of concrete, geometry, as well as longitudinal and shear reinforcement of columns and beams. The optimization is performed to minimize the cost and CO2 emissions using the enhanced colliding bodies optimization (ECBO) algorithm. The trade-off between cost and CO2 emissions shows that in the design for minimizing CO2 emissions compared to the design based on the cost minimization, increasing 1.4 % in cost can decrease CO2 emissions by 6.1%.

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Section: Optimization Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of Columns and Bent Caps of RC Bridges for Cost and CO2 Emission

Kaveh

Mottaghi

Izadifard

2022

Period. Polytech. Civil Eng.

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show abstract

“…Yepes et al [16] proposed a methodology for optimal design of RC cantilever retaining walls, using a hybrid multistart optimization strategic method based on a variable neighborhood search threshold acceptance strategy (VNS-MTAR) algorithm to minimize the cost and CO2 emissions. Kaveh et al [17] investigated the relationship between optimal cost and optimal carbon dioxide emissions in design of RC frames with different heights.…”

Section: Introductionmentioning

confidence: 99%

An integrated method for sustainable performance-based optimal seismic design of RC frames with non-prismatic beams

2021

Self Cite

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In the performance-based optimal seismic design, one attempts to obtain structural design variables to meet the minimum objective function satisfying the strength-based and performance-based constraints. A limited number of studies have been conducted on the performance-based optimal seismic design of reinforced concrete frames. On the other hand, due to the importance of environmental impacts, further study is necessary for the design of RC buildings with the aim of reducing CO2 emissions. In this study, a computational procedure is developed for performance-based optimal seismic design of RC frames with prismatic beams and frames with non-prismatic beams. The objective functions consist of minimizing the cost and CO2 emissions. Nonlinear pushover analysis is performed for analysis of the frames. The described procedure is applied to a 4-story reinforced concrete frame and the relationship between optimal cost and optimal CO2 emissions is studied for frames with prismatic beams and frames with non-prismatic beams.

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“…More reduction of the material quantity is possible if the optimal design is applied to the steel double-beam system. Generally, the optimal design requires iterative analysis taking a lot of time to minimize the objective functions such as cost [22], environmental impact [23], or a combination of both (i.e., multi-objectives) [24,25], while the structural safety is satisfied. Moreover, when design parameters of different structural members have a dependency and they are reflected in the objective functions, the timecost is increased by the iterative analysis.…”

Section: Introductionmentioning

confidence: 99%

Development of Optimal Design Method for Steel Double-Beam Floor System Considering Rotational Constraints

Choi

Kim

2021

Applied Sciences

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Under high gravity loads, steel double-beam floor systems need to be reinforced by beam-end concrete panels to reduce the material quantity since rotational constraints from the concrete panel can decrease the moment demand by inducing a negative moment at the ends of the beams. However, the optimal design process for the material quantity of steel beams requires a time-consuming iterative analysis for the entire floor system while especially keeping in consideration the rotational constraints in composite connections between the concrete panel and steel beams. This study aimed to develop an optimal design method with the LM (Length-Moment) index for the steel double-beam floor system to minimize material quantity without the iterative design process. The LM index is an indicator that can select a minimum cross-section of the steel beams in consideration of the flexural strength by lateral-torsional buckling. To verify the proposed design method, the material quantities between the proposed and code-based design methods were compared at various gravity loads. The proposed design method successfully optimized the material quantity of the steel double-beam floor systems without the iterative analysis by simply choosing the LM index of the steel beams that can minimize objective function while satisfying the safety-related constraint conditions. In particular, under the high gravity loads, the proposed design method was superb at providing a quantity-optimized design option. Thus, the proposed optimal design method can be an alternative for designing the steel double-beam floor system.

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Optimal design of planar RC frames considering CO2 emissions using ECBO, EVPS and PSO metaheuristic algorithms

Cited by 133 publications

References 17 publications

Optimization of Columns and Bent Caps of RC Bridges for Cost and CO2 Emission

Optimization of Columns and Bent Caps of RC Bridges for Cost and CO2 Emission

An integrated method for sustainable performance-based optimal seismic design of RC frames with non-prismatic beams

Development of Optimal Design Method for Steel Double-Beam Floor System Considering Rotational Constraints

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