To study the axial compression performance of a steel-reinforced ultra-high-performance concrete-filled square stainless-steel tube (SR-UHPCFSSST), eight specimens were designed with different length-to-diameter ratios and skeleton contents, tests numerical simulations performed. Damage pattern, ultimate load capacity, load–displacement curve data obtained. Finite element analysis was performed...

Concrete-Filled Steel Tube (CFST) columns need to be reliably analyzed and estimated under axial compression. This research contributes solving the above problem by using an integrated Ansys Workbench application, DesignXplorer. approach is convenient for academics industry in CFST column design because proposed compressive strength formulas will established parameters’ properties. Correlation ...

Gap between the steel tube and core concrete of Concrete-Filled Steel Tube (CFST) members is regarded as an initial imperfection, which may exist in CFST arch bridge due to construction process problems. In this paper, based on design scheme bolt-welded joints rib columns extra-long span bridge, effects two types imperfections, interfacial gap spherical-cap gap, mechanical properties Bolt-Welde...

In order to study the axial compression performance of FRP (fiber reinforced polymer)-concrete-steel solid columns (FCSSC), nonlinear analysis program FCSSC was compiled in this paper. The verified by existing tests, and impacts tube thickness, steel outer radius tube, strength concrete were examined. outcomes showed that calculated results agreed with experimental results. It demonstrated way ...

The columns of frame structures are the key load-bearing components and the exterior columns are susceptible to attack in terrorist blasts. When subjected to blast loads, the columns would suffer a loss of bearing capacity to a certain extent due to the damage imparted which may lead to their collapse and even cause the progressive collapse of the whole structure . The concrete-filled steel col...

This paper has carried out the quasi-static tests of five specimens FRP-UHPC column-steel beam joints with core columns, and extensive parameter analysis by numerical simulation. The results show that Concrete-filled square steel tube column -Steel Beam Joints have strong bearing capacity. It excellent deformability, stiffness energy dissipation capacity, works well under condition high axial c...

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...