Numerical simulation and data-driven analysis on the flexural performance of steel reinforced concrete composite members

Lai, Binglin; Yang, Lifu; Xiong, Ming‐Xiang

doi:10.1016/j.engstruct.2021.113200

Cited by 34 publications

(5 citation statements)

References 34 publications

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“…As validated before, fiber section analysis is performed on the basis of plan section assumption, and the convergency criterion can be met by successively moving neutral axis and proceeding the loading step. Figure 11 presents a biaxially loaded SRC section with inclined neutral axis, where the griding size, computational algorithm and other settings all comply with previous study (Lai et al, 2021), except for the special attention paid to coordinate transformation for each fiber element. The entire calculation process is undertaken in MATLAB platform via the self-developed program.…”

Section: Fiber Section Analysismentioning

confidence: 92%

“…As a preferred structural element type adopted in high-rise, large span and other heavily loaded structures, Steel Reinforced Concrete (SRC) column has been extensively researched in the past decades (El-Tawil et al, 1995; Lai and Liew, 2020a; Wang et al, 2019; Wu et al, 2019; Yang et al, 2018). Previous investigation covers a wide scope including the axial performance (Khan et al; Lai and Liew, 2021; Lai et al, 2019a; Lee et al, 2020; Khan et al, 2020a; Zhu et al, 2014; Yu et al, 2021), buckling behavior (Kim et al, 2014; Lai and Liew, 2020a, 2020b; Yang et al, 2019), flexural response (Kabir et al, 2020; Lai et al, 2021), fire resistance (Du et al, 2021; Li et al, 2021), shear strength (Xue et al, 2020; Xue et al, 2021), as well as the seismic performance under cyclic loading for a single member (Gautham and Dipti, 2021; Fang et al, 2015; Xue et al, 2019; Xue et al, 2020; Zhu et al, 2016) and a large-scale three-dimensional (3D) building frame (Liu et al, 2021). In addition to conventional steel and concrete materials, the behavior of SRC members made of Fiber Reinforced Concrete, Ultra High-Performance Concrete and Engineered Cementitious Composites have also been studied experimentally (Khan et al; Kabir et al, 2020; Lai et al, 2019b; Huang et al, 2020) and numerically (Khan et al, 2020b).…”

Section: Introductionmentioning

confidence: 99%

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Numerical parametric study on the uniaxial and biaxial compressive behavior of H-shaped steel reinforced concrete composite beam-columns

Lai

Tan

Feng

et al. 2022

Advances in Structural Engineering

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As a follow-up work of previous experimental efforts, this paper aims to further explore the compressive behavior of Steel Reinforced Concrete (SRC) composite beam-columns with assistance of nonlinear Finite Element Analysis. The FE model was developed in ABAQUS software and it delivered desirable accuracy after calibrating against the dataset collected from published literatures. The validated FE model was then employed to evaluate the fundamental performance of SRC beam-columns under uniaxial eccentric compression and biaxial eccentric compression. On top of that, the fiber section analysis was adopted to build the three-dimensional axial force-bending moment (N-M) interaction diagrams, followed by a parametric study to investigate the effect of material grade, steel ratio, cross-section geometry, load eccentricity and load inclination on the load-carrying capacity of SRC beam-columns, and disclose the complex biaxial interaction mechanism that is not well-considered in current design codes. Based on the numerical data generated from parametric study, the Support Vector Machine method is utilized to intelligently estimate the biaxial moment contours under varying load levels, which exhibits improved accuracy and consistency than the code-specified method and conventional empirical formulae.

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Section: Fiber Section Analysismentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Numerical parametric study on the uniaxial and biaxial compressive behavior of H-shaped steel reinforced concrete composite beam-columns

Lai

Tan

Feng

et al. 2022

Advances in Structural Engineering

Self Cite

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“…A correction method based on the stirrup constraint principle is more consistent with the test results [13,14]. Currently, for concrete-encased HSS beams, some studies related to finite element (FE) analysis are available [17,18]. It was found that the use of HSS could increase the bearing capacity of the members, but there was a phenomenon of unyielding HSS in concrete-encased HSS beams.…”

Section: Introductionmentioning

confidence: 89%

The investigation on flexural performance of prestressed concrete-encased high strength steel beams

Wang,

Jiao,

Cui

et al. 2024

Archives of Civil Engineering

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This paper reports an experimental on the flexural performance of prestressed concrete-encased high-strength steel beams (PCEHSSBs). To study the applicability of high-strength steel (HSS) in prestressed concrete-encased steel beams (PCESBs), one simply supported prestressed concrete-encased ordinarystrength steel beam (PCEOSSB) and eight simply supported PCEHSSBs were tested under a four-point bending load. The influence of steel strength grade, I-steel ratio, reinforcement ratio and stirrup ratio on the flexural performance of such members was investigated. The test results show that increasing the I-steel grade and I-steel ratio can significantly improve the bearing capacity of PCESB. Increasing the compressive reinforcement ratio of PCEHSSB can effectively improve its bearing capacity and ductility properties, making full use of the performance of HSS in composite beams. Increasing the hoop ratio has a small improvement on the load capacity of the test beams; setting up shear connectors can improve the ductile properties of the specimens although it does not lead to a significant increase in the load capacity of the combined beams. Then, combined with the test data, the comprehensive reinforcement index considering the location of reinforcement was proposed to evaluate the crack resistance of specimens. The relationship between the comprehensive reinforcement index and the crack resistance of specimens was given.

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“…Elastic stiffness is decisive indexes for the serviceability limit state of structures and a number of researches have been conducted on the prediction method of elastic stiffness of members and structures [28]. Based on the experimental and parametric results, the elastic lateral stiffness of the infilled PC frame structure can be greatly enhanced by the CFS-CLPM composite walls.…”

Section: Prediction Of the Elastic Stiffnessmentioning

confidence: 99%

Experimental Investigation and Numerical Analyses on Cyclic Behavior of the Prefabricated Concrete Frame Infilled with CFS-CLPM Composite Walls

Liu

Wang

et al. 2022

Buildings

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A novel CFS composite wall filled with cement-based lightweight polymer material (CFS-CLPM composite wall) has been proposed and proven to have excellent architectural and mechanical performance. To promote its application in prefabricated concrete (PC) frame structures, two full-scale specimens were designed and tested under cyclic loading to investigate the failure mode, hysteretic response and energy dissipation of the PC frame infilled with the CFS-CLPM composite wall. The experimental results indicated that CFS-CLPM composite walls can significantly improve the lateral behavior of the PC frame in terms of load capacity, elastic stiffness and energy dissipation capacity, while slightly reducing its ductility because of the infill-frame interaction. Subsequently, finite element (FE) analyses for the PC frame infilled with CFS-CLPM composite walls were developed and verified against the experimental results. The force-transferring mechanisms between the PC frame and the CFS-CLPM composite walls were revealed by analyzing the stress distributions. The parametric analyses demonstrated that the influential parameters for lateral resistances of the PC frame structure infilled with CFS-CLPM composite walls were the strength of CLPM, the span-to-height ratio and the thickness of CFS-CLPM composite walls. Finally, a formula considering the mechanical contribution of the CFS-CLPM composite wall was proposed to predict the elastic lateral stiffness of the structures. The results of this study could provide a basis for the application of CFS-CLPM composite walls in PC frame structures.

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Numerical simulation and data-driven analysis on the flexural performance of steel reinforced concrete composite members

Cited by 34 publications

References 34 publications

Numerical parametric study on the uniaxial and biaxial compressive behavior of H-shaped steel reinforced concrete composite beam-columns

Numerical parametric study on the uniaxial and biaxial compressive behavior of H-shaped steel reinforced concrete composite beam-columns

The investigation on flexural performance of prestressed concrete-encased high strength steel beams

Experimental Investigation and Numerical Analyses on Cyclic Behavior of the Prefabricated Concrete Frame Infilled with CFS-CLPM Composite Walls

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