In order to study the deformation behavior of saturated soft clay under long-term cycle compression loading,a series of undrained and drained cyclic triaxial compression tests were performed on typical Pearl River Delta saturated soft clay.

To study the behavior of circular tube confined HSC stub columns,6 specimens were tested under cyclic axial compression.

To study the axial load behavior of square tube confined HSC short columns,12 specimens was tested under cyclic axial compression.

Fatigue failure of rubber composite under cyclic loading;

Space-time evolution rules study of acoustic emission locations in rock under cyclic loading;

Experimental research on the acoustic emission characteristic of sandstone under the different experimental condition of cyclic loading;

Nonlinear finite element analysis on seismic behavior of two kinds of slabs under cyclic load;

Experimental study on composite slabs under cyclic load;

In order to study the elas to plastic response of the beam to column welded connection under the seismic load and improve the earthquake resistant performance of welded joint,the non linear FEM analysis of "H" and "Dog Bone" Type of welded connection under the simulating seismic cyclic load was carried out by utilizing the ANSYS programming package.