Abstract：Abstract: Effectual identification of the structural bolted state is the base to inure the structural reliability and safety. Generally, the traditional identification methods based on modal parameter are not so ideal. At present work, plural and real indication parameters, which present relatively modal connection stiffness, are constructed in the modal space to indicate the structural bolted state. The efficiency of the indication parameters are tested by modal experiments of the bolted beam with different bolted moments. The results show that the indication parameters are more sensitive to the structural bolted state than the nature frequencies.
2011, Vol. 30 
