Previous studies into the elastic local buckling response of steel plates in concrete-filled tubular (CFST) sections have considered effect concrete infill on plate boundary conditions and mode shape (i.e. one-way only), but not influence hoop stresses. This is addressed current paper, where a new model proposed which unloaded edges are assumed to be elastically restrained account taken Tensile...

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...

To improve the seismic behavior of shear walls, a new composite wall composed steel-fiber-reinforced high-strength concrete (SFRHC) web and two square concrete-filled steel tube (CFST) columns, namely with CFST is proposed in this paper. Therefore, main purpose paper to present an experimental investigation SFRHC columns. Pseudo-static tests were carried out on seven performance walls was studi...

Concrete filled steel tube (CFST) columns are being popular in civil engineering due to their superior structural characteristics. This paper investigates enhancement axial behavior of CFST by adding fibers plain concrete that infill tubes. Four specimens were prepared: two square (100*100 mm) and circular (100 mm diameter). All 60 cm length. Plain mix reinforced with used columns. Ultimate loa...

At present, there is a lack of research on the influence different dynamic constitutive models steel and concrete mechanical properties concrete-filled tubular (CFST) columns under lateral impact. In this paper, A comprehensive numerical study effects impact response CFST was conducted. The with strengths were divided into four categories, namely, normal-strength steel, high-strength concrete. ...

Abstract Under axial compression, the present article analyses and compares behaviour of Plain Concrete filled Nano Silica modified concrete with light gauge steel rectangular columns. In 18 work samples, plain nano silica-modified was tested on sections. Investigations were conducted into several essential variables, including geometry cross-section, tubular thickness steel, depth-to-thickness...

This paper presents a three dimensional nonlinear finite element analysis for Concrete Filled Steel Tube (CFST) columns subjected to lateral impact load. The finite element models were developed using commercial code ABAQUS/Explicit, which were validated against the experimental results. The study has been carried out to examine the influence of several parameters such as the length of the tube...

To investigate the reasonable range of inclination angle arch ribs, a spatial finite element method was employed based on concrete-filled steel tube (CFST) basket-handle through an bridge with span 360 m. A model established using Midas/Civil software, which verified actual data. The effects different rib angles were investigated under static loads. structural natural frequencies, linear elasti...

Studies done by the previous researchers in Concrete Filled Steel Tubes (CFST) have a significant focus on bond performance of CFST. This paper includes studies evaluation critical parameters such as interface condition, length, infilled concrete strength, and end friction cross-section dimension these members. It is found that effect length had very little impact stress it shows promising valu...