| HT5SS]Detailed research on the method of founding a model for dynamic analysis of prestressed concrete T\|type beam is made in this paper. The bridge is scattered in beam\|segment elements, considering the flexural, free torsional, restraint torsional deformation of T\|type beam and the action of local member(exp. cross diaphragm plate, etc.) the element characteristic matrix of structure is established by the principle of energy. Applications in practice suggest that the method presented in this paper is convenient for applications and suitable for solution with computer as well, so it is a practical, reliable method for dynamic analysis of fabricated prestressed concrete T\|type beam structure. |