The Finite Element Analysis of Six-layer frame structure Suffered vertical collapsed

The capability of structure resisting progressive collapse depends on controlling the dispersion of damage by uncommon agency in the part of the structure and to avoid the destruction just likes the Domino action. For the RC frame, when one column under the beams is broken, the key to avoid progressive collapse is whether the frame beams can bear the column´s load to produce a new way for transmitting the force or not. In this paper, according to the present design code, the numerical analysis was carried out for researching the vertical progressive collapse of a six-story building by finite element software-ADINA. The collapse stress and flexibility of frame structure under blast action could be obtained, which meet current design code and can provide references for further study on collapse mechanism and anti-blasting measures.