The mechanical behaviors of recycled aggregate concrete (RAC) are upgraded by outer steel tube confinement, and the performance concrete-filled tubular (RACFST) columns is similar to that traditional (CFST) columns. purpose this study investigate rectangular (RACFRST) stub under axial loading. Three-dimensional finite element (FE) models were established, which utilized a triaxial plastic-damag...

Abstract In this research, an attempt has been made to evaluate the structural response of multi‐storey composite modular buildings when subjected lateral wind loads. Finite element (FE) models were developed in Abaqus for a general 10 storey building, with and without consideration load resisting mechanisms shear walls. Concrete filled steel tubular (CFST) columns walls proposed place conventi...

The concrete-filled double steel tube (CFDST) has been more and widely used in infrastructure due to its greater moment of inertia compared the ordinary (CFST). With increase collision accidents occurring recent years, research on CFDST under impact needs attention. To study dynamic responses columns lateral impact, finite element package ABAQUS was simulate force mid-span deflection column cou...

Concrete-filled steel tubes (CFSTs) embedded in structural walls can improve the lateral-force resistance of slab–wall structures, but also impede passage and anchorage bars slabs around tubes. Therefore, objective this research is to propose design detailing solve problem, analyze bearing capacity seismic performance joint using design. Two types no-through-tube were put forward for that inter...

Recycled aggregate concrete (RAC) is an environmentally friendly building material. This paper investigates the mechanical behavior of recycled aggregate concrete filled steel tube (RACFST) columns exposed to fire. Two groups of 12 columns were designed and tested, under axial compression, before and after fire, to evaluate the degradation of bearing capacity due to fire exposure. Six specimens...

This paper aims to experimentally study the fire performance of steel-reinforced concrete-filled steel tubular (SRCFST) columns without protection. Eight SRCFST specimens with cruciform section profiled were tested under ISO-834 standard fire. The various test parameters including cross-section type tube (circular or square), load ratio and eccentricity considered discussed. temperature distrib...