In order to grasp the stress field of the penetrated underlying layer,the equivalent unit of the underlying layer was analyzed.

The pseudo-static experiment and pulsating test are performed with a three-story masonry of half scale model,and the representative volume element(RVE) is adopted to simulate non-linear analysis of spatial masonry structure.

In this paper, some difficult problems in numerical calculation, such as inhomogeneous characteristic and discontinuity on bedded rock, were solved with typical equivalent unit We obtained orthotropic mechanical paramete.

the calculating concept was guoted,which of the internal force of the bent structuer in space,when analysing the internal force onsuch as the unit of the complex bent structuer,the relation between the equivalent element length and the assigning modulus,in order to get the certain reckoning and electricity calculating means,and verify by the fact that the example is in progress.