Stability and Carrying Capacity of the Steel Tubes

Kanishchev, Ruslan; Kvočák, Vincent

doi:10.1016/j.proeng.2017.05.362

Cited by 5 publications

(7 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These functions have different types that can be defined by different criteria [10,19,38]. On the other hand, a lot of scholars applied numerical methods to model and assess the mechanical behavior of CFST columns since experimental investigations are costly and time-consuming, and also have some limitations such as materials preparation [4,[43][44][45]. In some of these studies, comparisons were made between the results of ultimate bearing capacity achieved from the FEA and the outcome reached by the experimental tests.…”

Section: A Brief Background Of Gene Expression Programming (Gep) and Finite Element Analysis (Fea)mentioning

confidence: 99%

“…Furthermore, for the end plates, a solid element C3D8R was applied. For the plastic behaviour of concrete, concrete damage plasticity model is considered and the specifications are assumed according to the previous similar studies which led to acceptable results in analysis [43][44][45][46][47]56]. For simulation of the boundary conditions of models, the reference point was pinned which means the displacement assumed zero but rotation was free (U1 = U2 = U3 = 0).…”

Section: Fe Modelling and Analysismentioning

confidence: 99%

See 1 more Smart Citation

Use of the Gene-Expression Programming Equation and FEM for the High-Strength CFST Columns

et al. 2021

View full text Add to dashboard Cite

The ultimate strength of composite columns is a significant factor for engineers and, therefore, finding a trustworthy and quick method to predict it with a good accuracy is very important. In the previous studies, the gene expression programming (GEP), as a new methodology, was trained and tested for a number of concrete-filled steel tube (CFST) samples and a GEP-based equation was proposed to estimate the ultimate bearing capacity of the CFST columns. In this study, however, the equation is considered to be validated for its results, and to ensure it is clearly capable of predicting the ultimate bearing capacity of the columns with high-strength concrete. Therefore, 32 samples with high-strength concrete were considered and they were modelled using the finite element method (FEM). The ultimate bearing capacity was obtained by FEM, and was compared with the results achieved from the GEP equation, and both were compared to the respective experimental results. It was evident from the results that the majority of values obtained from GEP were closer to the real experimental data than those obtained from FEM. This demonstrates the accuracy of the predictive equation obtained from GEP for these types of CFST column.

show abstract

Section: A Brief Background Of Gene Expression Programming (Gep) and Finite Element Analysis (Fea)mentioning

confidence: 99%

Section: Fe Modelling and Analysismentioning

confidence: 99%

Use of the Gene-Expression Programming Equation and FEM for the High-Strength CFST Columns

et al. 2021

View full text Add to dashboard Cite

show abstract

“…This method will reduce the total self-weight of the structure and decrease the deformation. Reasonably, the whole capacity of the bridge will be improved especially in the structural rigidity and the stress distribution, advancing the competitiveness of bridge with a larger span [7]. However, it needs specific configuration of the connection to provide a prominent behaviour under building or bridge structure.…”

Section: Introductionmentioning

confidence: 99%

Analytical Study of Rectangular Concrete-Filled Tubes (RCFT) Connections using Finite Element Analysis under Cyclic Loading

2022

View full text Add to dashboard Cite

Recent condition of the earthquakes model has shown that rectangular concrete-filled tubes (RCFT) with weld connection are so brittle. According to the studies conducted, large damages are due to the cracking of the weld between the beam flange and the column face and inducing concentrated stresses in this area. One of the novel alternatives to reduce the stress concentration at the panel zone could be the use of the reduce beam section (RBS). Given the enormous impact of seismic behaviour and ductility of the panel zone, RBS moves plastic hinges formation at an appropriate distance from column face. In this study, 2 major model of RCFT with and without RBS have been modeled using ABAQUS computer program and compared under cyclic behaviour. The obtained result of this study showed that using RBS is more ductile and implied a good stability. It also will consider having better ductility than other connections. GRAPHICAL ABSTRACT

show abstract

“…One type of composite columns are rectangular concrete-filled steel tubes (CFSTs). These elements have distinct advantages over hollow steel tubes as described in [1][2][3][4], but one of the main structural advantages is its significant resistance to loss of local and global stability, which allows designers to reduce the crosssection of the element.…”

Section: Introductionmentioning

confidence: 99%

Stability of rectangular concrete-filled steel tubes

Kanishchev

2017

MATEC Web Conf.

Self Cite

View full text Add to dashboard Cite

Abstract. The paper deals with the theoretical analysis of the influence of imperfections on the stability and carrying capacity of axially compressed cold-formed rectangular steel tubes filled with concrete, which use as bearing structures in the structural engineering, bridges, underground subway systems and tunnels. The behavior of the mentioned above composite structures under load were presented by numerical modelling in software ABAQUS. The support conditions of loaded edges of the steel section were considered as clamped in the models. The results of the analysis were shown the influence of imperfections on the stability and carrying capacity of the composite columns.

show abstract

Stability and Carrying Capacity of the Steel Tubes

Cited by 5 publications

References 8 publications

Use of the Gene-Expression Programming Equation and FEM for the High-Strength CFST Columns

Use of the Gene-Expression Programming Equation and FEM for the High-Strength CFST Columns

Analytical Study of Rectangular Concrete-Filled Tubes (RCFT) Connections using Finite Element Analysis under Cyclic Loading

Stability of rectangular concrete-filled steel tubes

Contact Info

Product

Resources

About