In this tutorial Simulation inclined concrete filled steel tube column (CFST) under axial load in Abaqus has been studied.Concrete core is modeled as three dimensional solid part,steel tube is modeled as shell part and rigid plate as discrete rigid. You can see a figure of the assembled part
The application of concrete-filled steel tubular (CFST) columns in constructions has been in use for more than 40 years. It has been recognised that concrete-filled steel tubular composite columns utilise the most favourable properties of both constituent materials and the interaction between the steel hollow section and concrete core makes the composite column perform better structurally than individual constituent members but without significant increases in cost. To meet the architectural, aesthetic and constructional requirements in modern constructions, inclined, tapered and straight–tapered–straight (STS) members have been used in long span strutures, viaduct piers and high-rise buildings
To model concrete behavior CDP or Concrete Damage Plasticity and to model steel elastic plastic behavior with ductile damage criterion are used.
This simulation has done by two way,the first dynamic explicit method and the second general static and at the end the result are compared from two simulations. Perfect contact is assumed between steel and concrete part. The general contact algorithm with friction behavior is implanted. The proper boundary conditions is assign to the rigid bodies. The mesh size need to be same for concrete and steel tube
After the simulations all results such as stress,strain,damage and force-displacement diagram can be available. You can see some figures of the results at below
You can provide CAE ,INP,and English video files of this simulation here. The cost of these files is Thirty US Dollars. you can click on the bellow bottom to beginning process
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