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An optical fiber-based structural health monitoring technique is thus suggested. To check the effectiveness of the proposed method, experimental testing on smart CFRP reinforced steel beams under impact action has been performed, and the dynamic response of the structure has been measured by the packaged FBG sensors attached to the surface of the beam and the FBG sensors inserted in the CFRP plates. Time and frequency domain analysis has been conducted to check the structural feature of the structures and the performance of the installed sensors. Results indicate that the packaged Fiber Bragg Grating (FBG) sensors show better sensing performance than the bare FBG sensors in perceiving the impact response of the beam. The sensors embedded in the CFRP plate show good measurement accuracy in sensing the external excitation and can replace the surface-attached FBG sensors. The dynamic performance of the reinforced structures subjected to the impact action can be straightforwardly read from the signals of FBG sensors. The larger impact energies bring about stronger impact signals.<\/jats:p>","DOI":"10.3390\/s22176377","type":"journal-article","created":{"date-parts":[[2022,8,24]],"date-time":"2022-08-24T23:48:58Z","timestamp":1661384938000},"page":"6377","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Dynamic Response of CFRP Reinforced Steel Beams Subjected to Impact Action Based on FBG Sensing Technology"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6096-5256","authenticated-orcid":false,"given":"Hua-Ping","family":"Wang","sequence":"first","affiliation":[{"name":"School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China"},{"name":"Key Lab of Mechanics on Disaster and Environment in Western China, Lanzhou University, Ministry of Education, Lanzhou 730000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3380-9186","authenticated-orcid":false,"given":"Yi-Bin","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cong","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hu-Yuan","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hao","family":"Jiang","sequence":"additional","affiliation":[{"name":"Institute of Civil Engineering and Architecture in Gansu Province, Lanzhou 730070, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xue-Mei","family":"Zhang","sequence":"additional","affiliation":[{"name":"Institute of Civil Engineering and Architecture in Gansu Province, Lanzhou 730070, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9713-0535","authenticated-orcid":false,"given":"Xiang-Yang","family":"Xu","sequence":"additional","affiliation":[{"name":"School of Rail Transit, Soochow University, Suzhou 215006, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"158","DOI":"10.1061\/(ASCE)1090-0268(1998)2:4(158)","article-title":"Design guidelines for flexural strengthening of RC beams with FRP plates","volume":"2","author":"Saadatmanesh","year":"1998","journal-title":"J. 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