The dynamic analysis for the city wall of East Gate in Xi′an by the finite element method

The city wall of the East Gate in Xi′an has been named the historical relic by the State Council of China,so that it is the important significance for studying it.The dynamic analysis is investigated with input El centre wave by using the constitutive model of elasto plasticity that has been established by Yu Maohong′s unified strength theory.The response curves of acceleration and displacement at the different points,and the maximum acceleration and displacement have been obtained by the dynamic analysis of FEM.