This paper described a method o f reverberation ray matrix based on the Bernoulli beam theory. The method was ap plied to a structure subjected to impulse displacement loａds. The reliability of the method was verified by comparing the solution of the tr ansient i nternal forces and displacement responses of a 17 bar frame subjected to half si ne wave displacement loads with the FEM solution presented by ANSYS. The results from the both methods were nearly identical.