Numerical modeling of steel–concrete composite structures

Zhang, Qiang; Li, Yaozhuang; Kolozvari, Kristijan

doi:10.1002/suco.201700094

Cited by 13 publications

(3 citation statements)

References 17 publications

(33 reference statements)

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“…For all uncertainty types that enter any RC beam calculation, the elastic method is a satisfactory solution for present-day conditions [1]. Concretesteel composite structures have developed rapidly since the 1950s due to their superior performance and material advantage [2]. Generally, concrete and steel joint behaviour in an RC column and beam is unlike material science, where the direct rule of mixtures is a weighted average.…”

Section: Introductionmentioning

confidence: 99%

Innovative Equivalent Elastic Modulus Based Stress Calculation Methodology for Reinforced Concrete Columns

Şen,

Mangir

2023

Buildings

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The combination of linearity and elasticity assumptions provides classical calculation procedures for the reinforced concrete (RC) columns and beams against internal and external seismic loads. In these calculation procedures, the elasticity modulus of the concrete is taken into account by ignoring the steel reinforcement due to its small area percentage in the total cross-section area. This paper presents an innovative column stress calculation procedure considering the concrete–steel composition as the equivalent elastic modulus based on the classical Hooke’s Law. This methodology takes into consideration also the elastic modulus of the steel, providing a reduction in the factor of safety. The application of the proposed method is presented for a series of RC column cross-section areas. It is observed that the proposed methodology leads to elastic modulus improvement of 6% to 27% compared to conventional calculations. The necessary flow chart for the execution of the proposed process steps and accordingly developed MATLAB program are provided for the application.

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Section: Introductionmentioning

confidence: 99%

Innovative Equivalent Elastic Modulus Based Stress Calculation Methodology for Reinforced Concrete Columns

Şen,

Mangir

2023

Buildings

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“…The steel-concrete composite structural elements are a solution that provides several advantages, such as the reduction of the element’s dimensions, the self-weight and the structural volume, the structural steel consumption, the foundation costs and also the improvement of dimensions accuracy. In recent years, several researchers have studied steel-concrete composite elements, defending their advantages and applications (Bezerra et al, 2018; Chen et al, 2019; Liu et al, 2017; Qiang et al, 2018; Rossi et al, 2020a; Rossi et al, 2020b; Xu et al, 2018; Zhou et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Numerical assessment of effective width in steel-concrete composite box girder bridges

Nicoletti

Rossi

Souza

et al. 2020

Advances in Structural Engineering

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The present paper aims to determine numerically in the Abaqus® software the parameters that have the greatest influence on the effective width of steel-concrete composite box girder bridges. In the technical standards and in the literature, there is no specific recommendation for calculating the effective width in steel-concrete composite box girder bridge. As an alternative, the existing recommendations for steel-concrete composite I-girders are adopted. Therefore, in the absence of standards recommendations for steel-concrete composite box girder bridges, there is a need for an investigation into the distribution of stresses at the steel-concrete interface, because if the effective width was admitted incorrectly, may result in costly or even unsafe solutions. For this purpose, the effective numerical width of 160 models of steel-concrete composite box girder bridges was determined, in which the study variables were the configuration of the transversal section, the slab height, the span length and the elements arrangement in the cross section. After analyzing the results, it was proposed a recommendation to determine effective width of steel-concrete composite box girder bridges.

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“…They found that the addition of steel fibers is a more effective method than using a thicker steel tube for enhancing the ductility, and more advantageous in the case of higher strength concrete. Qiang et al, based on the analytical results, have proposed a section analysis method for round‐end sections, which is integrated into a fiber beam‐column model of steel–concrete composite structures in combination with the existing fiber discretization program. Comparison with extensive tests shows that the present fiber model has good accuracy and applicability.…”

Section: Introductionmentioning

confidence: 99%

Development of a new steel section for reinforcing of steel‐reinforced concrete‐filled steel tubular columns

Farajpourbonab

2019

Structural Concrete

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This article presents an experimental study to investigate the strength of steel‐reinforced concrete‐filled steel tubular (SRCFT) columns reinforced with castellated and common cruciform steel columns under compressive axial load. SRCFT columns are constructed by embedding a reinforcing steel section into the concrete‐filled steel tube (CFT) column, and in this article, a new structural steel shape, namely castellated cruciform steel section, for reinforcing of SRCFT columns was designed. Investigation of SRCFT columns reinforced with castellated steel section indicates evidence of higher strength and applicability in comparison with common reinforcing steel section. A numerical investigation was also carried out with finite element analysis to study the structural behavior of SRCFT columns under lateral cyclic loading. A reasonable agreement was obtained between the results of finite element analysis and the experimental test under axial and lateral cyclic loading. The variables studied included the effect of various types of reinforcing steel sections, flange boost effects of castellated reinforcing steel section, length of columns, compressive strength of concrete, and the tube thickness. As a result, it was revealed that the SRCFT specimen reinforced with castellated cruciform steel sections was effective in enhancing the seismic performance toward more stable hysteresis curves, lower strength degradation, and higher energy dissipation as compared with SRCFT specimens reinforced with common cruciform steel sections.

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Numerical modeling of steel–concrete composite structures

Cited by 13 publications

References 17 publications

Innovative Equivalent Elastic Modulus Based Stress Calculation Methodology for Reinforced Concrete Columns

Innovative Equivalent Elastic Modulus Based Stress Calculation Methodology for Reinforced Concrete Columns

Numerical assessment of effective width in steel-concrete composite box girder bridges

Development of a new steel section for reinforcing of steel‐reinforced concrete‐filled steel tubular columns

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