New tangent stiffness matrix for geometrically nonlinear analysis of space frames;

Stiffness analysis for concrete－filled steel tubular space frames;

Based on the analysis of a space elasticplastic timehistory procedure EPDA,the aseismatic behavior of a space frame structure in high earthquake intensity zone under seldom occurred earthquake is studied with timehistory analysis method.

A new design method which can be applied to the built up arch structure with RC piles for deep excavation is presented,which is executed by the analysis of space frame.

The computation analyses are shown by two practical examples that the computation errors will be greater when the space frame foundations under the action of Turbodynamos and electromotor are simplified to plane frame founations.

By combining super finite element(SFE)with substructure, a SFE-substructure model was proposed for dynamic analysis of high rise spatial framed structures in accordance with their deformation characteristics.

The knowledge management based on time frame can not only promote the performance of the knowledge management,standardize the direction and process of the knowledge management,but also can increase the controllability of knowledge management.