| This paper presents the main functions of the staticdynamic finite element analysis pro-gram system JIGFEX and its new developments on the aspects of interaction between soilfoundation and structure,dynamic analysis of saturated media,dynamic condensation inmulti-substructure,numerical solution of elastic-plastic frictional contact problems,antli-seismic research of high level buildings,thermofield and heat conduction simulations,grouptheoretic method and the analysis of stationary or nonstationary random seismic responses ofstructures under multi-support excitation,etc. |