Prediction model and sensitivity analysis of ultimate drift ratio for rectangular reinforced concrete columns failed in flexural-shear based on BP-Garson algorithm

Ma, Ying; Mi, Jiahao; Yang, Xiaozhou; Sun, Zhiguo; Liu, Chengqing

doi:10.1016/j.istruc.2023.105808

Cited by 5 publications

(4 citation statements)

References 24 publications

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“…On the other hand, as expressed in the figure captions, the calculations for percentage relative errors took as reference the rotated cylindrical/radial coordinate model in Equations ( 13) and ( 14) due to its analytical/conceptual proximity to the model in Equation ( 2), as explained in previous sections: the model in Equation ( 2) is a reasonable numerical approximation of the model in Equation (1). Concurrently, the models in Equations ( 13) and ( 14) are equivalent among them (when switching the curvature parame-ter considered, i.e., r → R) and also a straight forward reparametrization of the model in Equation (2).…”

Section: Parametermentioning

confidence: 99%

“…The recent studies have highlighted the importance of integrating advanced structural dynamics and stress-response analyses into highway design. Among them are studies on the structural resistance of reinforced concrete columns and circular hollow section (CHS) joints under bending moments, in which neural network modeling and BP-Garson algorithmization are used to predict and analyze critical structural behaviors, which clearly is directly applicable to highway design and its operational safety and integrity [1]. On the other hand, studies in subjects such as the analysis of the effects of the brace-to-chord angle on the capacity of multi-planar CHS X-joints under out-of-plane bending moments illustrate how spatial and angular factors, modeled through finite element analysis, influence structural capacity, which is critical in highway design [2].…”

Section: Introduction and Antecedentsmentioning

confidence: 99%

“… show the graphical results of the parametric analysis proposed. Before briefly discussing them, analytical calculations were developed on default MATLAB R2022b computational machine precision, retaining three significant digits due to friction coefficient experimental values (significant figures) in[27].On the other hand, as expressed in the figure captions, the calculations for percentage relative errors took as reference the rotated cylindrical/radial coordinate model in Equations (13) and (14) due to its analytical/conceptual proximity to the model in Equation (2), as explained in previous sections: the model in Equation (2) is a reasonable numerical approximation of the model in Equation(1). Concurrently, the models in Equations (13) and (14) are equivalent among them (when switching the curvature parame-…”

mentioning

confidence: 99%

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Analyzing the Impact of Geometrophysical Modeling on Highway Design Speeds: A Comparative Study for Mexico’s Case

Anaya Rivera,

Isaza,

Ramirez-Gutierrez

et al. 2024

Applied Sciences

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This manuscript presents an examination of the impact of geometrical and physical parameters on highway design speeds, critical for traffic safety and efficiency. Originating from a classical dynamics discussion in an undergraduate automotive technology engineering class, an exploration of the consequences of different geometrophysical considerations on a vehicle’s dynamics over pavement surfaces is developed. Considering various analytical models, an assessment of their principles and the significance of geometric and physical concepts involved in the problem is made, such as plane of motion and trajectory curvature radius, on safe (non slippage) operational speeds. The subsequent comparative study shows that one of the most accepted models in highway design regulations in México, when used as reference, yields percentage error differences respect to others of 0≲%EMax≲5, as well as a consistent trend for relatively underestimating safe highway operational speeds. A discussion of the immediate implications of these findings, emphasizing the necessity of experimental studies to validate theoretical predictions, is presented. This work contributes to the field by providing a detailed comparison of analytical models under a general applied science perspective, suggesting modifications to current highway design practices in México based on geometrophysical insights. In summary, this work’s main aim is to shed light on the intricacies of determining safe design speeds from an applied sciences point of view, while also calling for a reevaluation of the existing guidelines to enhance highway design and safety.

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Section: Parametermentioning

confidence: 99%

Section: Introduction and Antecedentsmentioning

confidence: 99%

mentioning

confidence: 99%

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Analyzing the Impact of Geometrophysical Modeling on Highway Design Speeds: A Comparative Study for Mexico’s Case

Anaya Rivera,

Isaza,

Ramirez-Gutierrez

et al. 2024

Applied Sciences

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“…Several studies have applied non-linear analysis to structural parts under compression, either with BP-Garson analysis that combines neural network and Garson algorithm [27], or also through iterative transient analytical analysis. In this paper, the numerical study focuses on the use of the ABAQUS program with FE simulation.…”

Section: Preliminary Numerical Simulation With Typical Connectionsmentioning

confidence: 99%

Experimental and Numerical Analysis for Eccentricity Solution in Double-Layer Space Truss

Vital,

Silva,

Bezerra

et al. 2024

Buildings

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This paper shows an extensive study on the Typical Connections used in Double-Layer Space Truss. For this structural system, the ends of the bars are flattened to connect the bars. However, the flattening process results in a highly plastic stamping zone susceptible to warping with the appearance of two eccentricities, one of which causes rotation of the connection, with the presence of a bending moment with local rupture resulting in progressive collapse of the entire coverage system, as already evidenced in several countries. Therefore, eccentricity in this paper is studied and an analytical solution to the problem is presented through the use of a new device called a spacer. Furthermore, a preliminary study with complex numerical simulation was carried out with nonlinear analysis in ABAQUS were evaluated. For this study, nine space trusses were experimentally tested with reinforcement spacer in reduced trusses. After confirming the efficiency of the spacer proposal, another six space trusses were tested in the laboratory, this time, on a full-scale. In this study, two types of spacers were evaluated, one made of USI SAC 350 steel and another cheaper one made from recycled tires from heavy vehicles with multiple filaments of steel and nylon wires in the rubber layers. The two devices presented very close resistance capacity values, with a resistance gain of approximately 30% in relation to connections without reinforcement, with structural failure characterized by buckling of the bars. Finally, a numerical study of space trusses with spacers was developed. In practical design terms, from these FE simulations it was possible to determine the normal stresses for different spacers applied in the different modeled spans.

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Project Cost Prognostication for Government Buildings Using Feed-Forward Backpropagation Neural Network

Maravilla,

Silva,

de Jesus

et al. 2025

Lecture Notes in Civil Engineering

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Prediction model and sensitivity analysis of ultimate drift ratio for rectangular reinforced concrete columns failed in flexural-shear based on BP-Garson algorithm

Cited by 5 publications

References 24 publications

Analyzing the Impact of Geometrophysical Modeling on Highway Design Speeds: A Comparative Study for Mexico’s Case

Analyzing the Impact of Geometrophysical Modeling on Highway Design Speeds: A Comparative Study for Mexico’s Case

Experimental and Numerical Analysis for Eccentricity Solution in Double-Layer Space Truss

Project Cost Prognostication for Government Buildings Using Feed-Forward Backpropagation Neural Network

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