Simulation of concrete-encased CFST box stub columns under axial compression in Abaqus

In this tutorial, the Simulation of concrete-encased CFST box stub columns under axial compression in Abaqus has been done. The concrete column is modeled as a three-dimensional solid part. The steel pipes are modeled as three-dimensional solid part also,  and the steel bar and strips are modeled as the wire part. The concrete parts which filled the steel tube are modeled as three-dimensioal solid parts. You can see figures of the assembled parts below

The concrete-encased concrete-filled steel tubular (CFST) box column, which consists of the reinforced concrete (RC) box column with several CFST components embedded in web walls and corners, has been developed and increasingly used in bridge arches and piers in China. There are six CFST components in this hollow composite column: four in the corners and two in the RC web walls. The diameter of the CFST components in the corners is usually set to be larger than that of the CFST components in the web walls to increase its flexural capacity.Compared with the conventional RC columns or the concrete-encased CFST columns, this composite column has a higher bearing capacity and construction efficiency

The concrete Damaged Plasticity material model is selecte. The CDP material model represents a constitutive model which is based on a combination of theory of plasticity and theory of damage mechanics. This material model is often used in solving geotechnical problems due to its realistic description of mechanical behavior of concrete material. The steel material with elastic-plastic behaviour is use for all steel parts. The dynamic explicit step with mass scale technique is considered. The general contact algorithm for all part is selected. All constraints are assigned to the part. The proper boundary conditions and loads are applied to the column. The mesh should be fine to obtain the correct results

After the analysis, all results such as stress, strain, tension and compression damage, force,and… are available. You can see some figures for the results below

You can provide CAE ,INP,and English video files of this simulation here. The cost of these files is Twenty-six Euros. you can click on the bellow bottom to begin the process

You can purchase the tutorial through a PayPal account, a Visa, or a Master card,  just before payment,send me an email to this address: karampourp@gmail.com