This paper presents an experimental and numerical study on large dimension concrete-filled square low steel ratio tubular (CFST) stub columns under axial loading. Four specimens were designed to investigate the effects of confinement effect CFST with a ratio. ABAQUS was used establish 3D finite element (FE) models for simulation Furthermore, based verification, definition index ( ϕ = f s A /( c...

Conducting numerical investigation for the behaviour of a blind-bolted connection with concrete-filled steel tube (CFST) and an open section could emerge several convergence issues due to its complex mechanism interactions between components. This paper attempts identify address these provide reliable solution techniques that can be adopted achieve accurately predict CFST connections. Three dif...

L-shaped concrete-filled steel tubular (CFST) columns represent a valuable structural element with an cross-section, primarily employed in the corner of framed structures. These offer several advantages, including space efficiency by avoiding column protrusion, robust mechanical properties, high load-bearing capacity, ductility, and efficient utilization internal building space. This article pr...

Emergency responders are faced with a number of significant challenges when managing major disasters. First, the number of rescue tasks posed is usually larger than the number of responders (or agents) and the resources available to them. Second, each task is likely to require a different level of effort in order to be completed by its deadline. Third, new tasks may continually appear or disapp...

Concrete filled steel tubular (CFST) columns have been increasingly used in tall buildings and bridges due to offering excellent structural economic benefits. Current design codes for such exhibit certain limits terms of material strengths section slenderness. This paper aims evaluate the reliability applicability current equations American code AISC 360–16, European EC 4 Australian/New Zealand...