In this paper, the state of the art and existing criteria of dynamic stability in the field of structural engineering are reviewed, and then new methods and criteria for judging dynamic stability of lattice steel structures with strong geometrical nonlinearity under any dynamic loading (such as seismic loading etc.

Nonlinear Analysis of RC Structure Members by Layered Finite Element Model and Arc-length Method;

An exact method for computation of envelopes of various internal forces of skeletal structures under moving loads is developed.

The solution of free vibration problem of skeletal structures provides important data for engineering design.

Principle of virtual work for framed structures with large displacement;

For further studies on geometric nonlinearity of framed structures, a finite element method based on beam element is developed.

There are two major methods in the static analysis of framed structures, i.