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Indexed by:期刊论文

Date of Publication:2022-06-29

Journal:振动与冲击

Affiliation of Author(s):建设工程学部

Issue:10

Page Number:118-123,129

ISSN No.:1000-3835

Abstract:Usually only some lower modes are identified in civil engineering, so it is hard to estimate the damage of large structure accurately. Aiming at this problem, the method of adding virtual supports on the structure was proposed for structure damage identification. The virtual supports were constructed by the substructure isolation method using the linear combination of responses. The structure with additional support is called after virtual structure. The styles of the virtual structure are various by adding virtual supports on different places of the structure. The natural frequencies of all the virtual structures were then collected and used for damage identification. A 3-D frame model was built for the verification of proposed method.

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