Optimization of Cold-Formed Steel Channel Columns

El-Taly, B. Boshra A.; Fattouh, M.

doi:10.1007/s40999-020-00514-7

Cited by 5 publications

(2 citation statements)

References 32 publications

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“…In the design of RCCRWs, the selection of the appropriate wall dimensions is crucial since it dramatically affects both the stability and cost. Optimization techniques have found extensive applications in different areas of civil engineering, such as project time-cost estimation [1], risk-cost maintenance strategy [2], optimization of structures [3][4][5][6], damage detection [7] and water distribution network optimization [8]. Numerous studies have been conducted to optimize the size of retaining walls, with the aim of achieving cost-effective designs [9].…”

Section: Introductionmentioning

confidence: 99%

Optimum Cost Prediction of Reinforced Concrete Cantilever Retaining Walls

Akis

2023

Buildings

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Reinforced concrete cantilever retaining walls (RCCRWs) are widely used in civil engineering projects as a common type of retaining structure. The design of these structures focuses on ensuring safety against various failure scenarios and compliance with standard building code requirements. This research aims to enhance the design process of RCCRWs by developing a specific code and optimizing it through a metaheuristic-based algorithm. In this study, the cost prediction of RCCRWs is also investigated through a parametric study involving key variables such as wall height, seismic zone, backfill material properties, and backfill inclination angle. To achieve this, non-linear regression analysis is employed to establish an empirical correlation, enabling cost estimation for optimized RCCRWs. The resulting prediction equation is simple to use, requiring only limited inputs. Therefore, it can be applied during the initial stages of a project, making a valuable contribution in determining approximate costs for RCCRW projects.

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Section: Introductionmentioning

confidence: 99%

Optimum Cost Prediction of Reinforced Concrete Cantilever Retaining Walls

Akis

2023

Buildings

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“…The experimental and numerical results were compared with the predictions from the current standards and the modifications in design were then proposed. The optimization of coldformed steel channel columns was carried out by El-taly et al [30] with combinations of edge and intermediate the American Society for Testing Materials (ASTM). In this paper, material grades according to AS 1397 [2] describe a range of coated steels from G250 to G550.…”

Section: Introductionmentioning

confidence: 99%

Effects of stiffeners on the capacities of cold‐formed steel channel members

Phạm

2021

Steel Construction

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This paper investigates the effects of stiffeners on the compressive and flexural capacities of cold-formed steel channel members. Stiffeners are added on the web of the channel section to form a new section called SupaCee. This new section is shown to be more innovative and stable than the traditional channel section. The structural advantages of this new section are investigated by comparing the capacities of SupaCee and channel members under compression and bending. The capacities are determined by using the direct strength method (DSM) according to AS/NZS 4600:2018 with the support of THIN-WALL-2, a buckling analysis program. It was found that the stiffeners are effective for small section dimensions and thicknesses, but become ineffective for large section dimensions.

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Investigation of Sectional Capacities of Cold-Formed Steel SupaCee Sections

Phạm

2022

Lecture Notes in Civil Engineering

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SupaCee section is formed by adding stiffeners in the web of the channel section, and it has been illustrated to be more stable and innovative than the traditional channel section. The member capacity comparisons between such two section members investigated in a companion paper showed that SupaCee was significantly beneficial for small and thin section members, but the reductions of global buckling strengths of SupaCee section members led to the lower capacities for long members compared to those of channel section members. These reductions can be prevented by using full bracing systems to avoid global buckling; this allows member capacities to reach sectional capacities. This paper, therefore, presents a study on sectional capacities of cold-formed steel SupaCee sections under compression or bending in comparison with those of channel sections.

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Optimization of Cold-Formed Steel Channel Columns

Cited by 5 publications

References 32 publications

Optimum Cost Prediction of Reinforced Concrete Cantilever Retaining Walls

Optimum Cost Prediction of Reinforced Concrete Cantilever Retaining Walls

Effects of stiffeners on the capacities of cold‐formed steel channel members

Investigation of Sectional Capacities of Cold-Formed Steel SupaCee Sections

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