"Damage Localization of Structures Based on Modal Characteristic Changes"@en . . "Lokalizace po\u0161kozen\u00ED na z\u00E1klad\u011B zm\u011Bny mod\u00E1ln\u00EDch charakteristik"@cs . . . . . "Damage Localization of Structures Based on Modal Characteristic Changes" . "Praha" . . "RIV/68407700:21110/04:01100274!RIV/2005/MSM/211105/N" . "Plach\u00FD, Tom\u00E1\u0161" . "80-86246-20-5" . . . . . . "Damage Localization of Structures Based on Modal Characteristic Changes" . "21110" . "RIV/68407700:21110/04:01100274" . . . "Z(MSM 210000030)" . "CAMOSUC; COMAC; bridge; crack; damage detection; fatigue; modal analysis; modal flexibility matrix; natural frequency; natural mode"@en . "2"^^ . "[27B962E3BF9B]" . "U re\u00E1ln\u00FDch betonov\u00FDch konstrukc\u00ED se projevuje mnoho typ\u016F po\u0161kozen\u00ED. Po\u0161kozen\u00ED, kter\u00E9 nebylo v\u010Das zji\u0161t\u011Bno, m\u016F\u017Ee v\u00E9st a\u017E k selh\u00E1n\u00ED konstrukce. Pot\u0159eba metod, kter\u00E9 by mohly b\u00FDt vyu\u017Eity na konstrukci jako celku, vedla k v\u00FDvoji metod detekce po\u0161kozen\u00ED zalo\u017Een\u00FDch na zm\u011Bn\u011B mod\u00E1ln\u00EDch charakteristik. Metody a postupy, kter\u00E9 vyu\u017E\u00EDvaj\u00ED v\u00FDsledky mod\u00E1ln\u00ED anal\u00FDzy pro zji\u0161t\u011Bn\u00ED \u00FArovn\u011B degradace konstrukce, je vhodn\u00E9 ov\u011B\u0159ovat na jednoduch\u00FDch stavebn\u00EDch prvc\u00EDch nebo na cel\u00FDch konstrukc\u00EDch, kde zn\u00E1me aktu\u00E1ln\u00ED stav po\u0161kozen\u00ED. V \u010Dl\u00E1nku je prezentov\u00E1na lokalizace po\u0161kozen\u00ED dvou typ\u016F konstruk\u010Dn\u00EDch prvk\u016F a jednoho mostu na z\u00E1klad\u011B zm\u011Bn mod\u00E1ln\u00EDch charakteristik. Pro detekci m\u00EDst s po\u0161kozen\u00EDm byl vyu\u017Eit zejm\u00E9na koeficient CAMOSUC, zm\u011Bna matice mod\u00E1ln\u00ED poddajnosti a druh\u00E1 derivace zm\u011Bny diagon\u00E1ln\u00EDch \u010Dlen\u016F matice mod\u00E1ln\u00ED poddajnosti."@cs . . . "2"^^ . . "Lokalizace po\u0161kozen\u00ED na z\u00E1klad\u011B zm\u011Bny mod\u00E1ln\u00EDch charakteristik"@cs . "Damage Localization of Structures Based on Modal Characteristic Changes"@en . "4"^^ . . . "Pol\u00E1k, Michal" . "2004-06-17+02:00"^^ . "In practice, various kinds of damage on reinforced concrete structures can be found. Undetected damage can lead to the failure of structural members or the structure at all. The need for methods for damage detection that can be applied to complex structures led to the development of methods that examine changes in modal characteristics of the structure. Methods and procedures, which use results of an experimental modal analysis for estimation of a degradation degree of a structure, is suitable to verify on simple structural elements or complex structures, when we know their damage state. This paper presents damage localization of two types of structural elements and one bridge based on modal characteristic changes. For localization of damaged places during experimental and theoretical studies on structural elements the CAMOSUC(j),x, the change of a modal flexibility matrix and especially the curvature of change of a modal flexibility matrix seems to be most appropriate." . . . "Experimental Methods and Measurement Techniques in Monitoring and Supervising Engineering Structures and Thein Numerical Analysis" . "83 ; 86" . "559350" . . . "T\u00E1bor" . . "\u010Cesk\u00E9 vysok\u00E9 u\u010Den\u00ED technick\u00E9 v Praze. Fakulta dopravn\u00ED" . "In practice, various kinds of damage on reinforced concrete structures can be found. Undetected damage can lead to the failure of structural members or the structure at all. The need for methods for damage detection that can be applied to complex structures led to the development of methods that examine changes in modal characteristics of the structure. Methods and procedures, which use results of an experimental modal analysis for estimation of a degradation degree of a structure, is suitable to verify on simple structural elements or complex structures, when we know their damage state. This paper presents damage localization of two types of structural elements and one bridge based on modal characteristic changes. For localization of damaged places during experimental and theoretical studies on structural elements the CAMOSUC(j),x, the change of a modal flexibility matrix and especially the curvature of change of a modal flexibility matrix seems to be most appropriate."@en . .