This paper presents a systematic finite element (FE) based parametric study to quantify the buckling capacity of perforated cold-formed and hot-rolled steel module column. The effects various key geometric parameters such as eccentricity (location perforation/column length), shapes (viz. circular, square hexagonal), sizes (width/diameter) height (depth) perforation; cross-sectional thickness, o...

Despite the many axial confinement models already proposed for determination of peak compressive strength fiber-reinforced polymer (FRP) confined concrete columns, they are, in general, applicable only to columns circular or square cross-section, with full partial arrangements. In this study, by proposing a cross-sectional and confining system unification approach, new model is developed calibr...

As a result of the excellent performance under different loading conditions, concrete-filled steel tubular (CFST) stub columns are extensively used recently. The current study employs 3D finite element analysis to assess response when subjected axial compression. effect some parameters concrete and confining tube where numerically investigated. was considered as an elastic perfectly plastic mat...

This paper presents a new model for predicting the compressive strength of steel-confined concrete on circular concrete filled steel tube (CCFST) stub columns under axial loading condition based on Artificial Neural Networks (ANNs) by using a large wide of experimental investigations. The input parameters were selected based on past studies such as outer diameter of column, compressive strength...

Since laboratory tests are usually costly, simulating methods using computers always under the spotlight. This study performed a finite element analysis (FEA) iterative solutions for circular and square concrete-filled steel tube (CFST) columns infilled with high-strength concrete reinforced cross-shaped plate (comprising two plates along that divide hollow into four equal sections) without ope...

Due to construction costs and operational issues have been in this study discuss how strengthen the concrete columns. The results of previous studies on some structures earthquake-prone weakness reinforced inside steel casings surrounding columns is a modern technique used many countries today for rectangular circular concrete. advantages method convenient, economical easy. Reference model colu...

This paper describes the experimental and numerical study on axial compressive behaviour of circular-in-circular concrete-filled double-skin steel tube (CFDST) stub columns with large void ratio. Nine specimens various ratio (Rv), diameter-to-thickness outer (Do/to) strength concrete (fcu) were tested under compression. The failure patterns, load versus displacement (strain) relationship, ultim...

In this study, the mechanical properties of different CFST column shapes, including circular, rectangular, square, square with rounded corners, and triangular, are all analyzed compared using ANSYS R2 2021 software. Total deformation, equivalent stress in concrete steel, elastic strain characteristics various shapes also compared. axial load as well highest that columns can support. Comparing c...