finite elements;  Drop weight deflector;  Multiple base boards;  Time domain

The dynamic time domain problem of joint load transfer between multiple plates and its interaction with the foundation is an important problem in the non-destructive testing and evaluation of rigid pavements and airports. Using the finite element method, by isolating each plate and expanding the corresponding matrix, the discontinuous problem with seams can be analyzed and calculated like a continuous problem. This method can not only be used to solve the static problem of multi-plate system and the dynamic problem in the frequency domain, but also simplifies the foundation into spring and damper, which can be successfully used for the dynamic time domain problem.