Concrete-filled steel tube (CFST) column have remarkable mechanical properties and are widely used in engineering. In order to avoid repeated work, this paper introduces a concrete model based on Python, which is used for automatic simulation of CFST columns under different loads. The pre-treatment and finite element analysis of CFST columns are carried out by using the model software. Finally, examples were cited to illustrate that the simulation results of the model are similar to the test results, and the purpose of engineering application is achieved.

Because of the serious impact on the seismic performance, the joint connection form becomes a critical problem in the prefabricated building. Built on the dry connection, this paper proposes a detachable and recyclable bolt-steel plate connection design for the fabricated structure. Compared to the cast-in-situ method, the biggest advantage of the proposed design scheme lies in convenient construction. The construction process shows that the joint devices both are detachable and recyclable. Adopting a supported beam, the proposed form is simulated with the finite element method (FEM). The deformation results verify the effectiveness of the proposed connection design. The work provides a novel idea for further test research on the fabricated structure.