Study on existing situation of Cangzhou iron lion under rear earthquake

The Cangzhou iron lion is the first batch important heritage site under state protection, and it is also an earliest and bigness cast iron historical relic by one pouring technology. In order to evaluate the seismic safety of the lion, a non-linear time-history analysis was performed with finite element program. After the geographical model of the lion was acquired by the method of 3D laser scanning, a finite element model was founded though meshing on the closed entity and then the response of the lion under 8 degrees of an unordinary earthquake action. The results show that the stress of both the lion and its brackets is less than the yield stress respectively, horizontal and vertical displacements are both on the small side, and the lion structure has sufficient seismic safety.