Pregled bibliografske jedinice broj: 200003
Monitoring of Bridges Based on Natural Frequency Measurements
Monitoring of Bridges Based on Natural Frequency Measurements // Durability and Maintenance of Concrete Structures / Radić, Jure (ur.).
Zagreb: SECON HDGK, 2004. str. 329-336 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 200003 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Monitoring of Bridges Based on Natural Frequency Measurements
Autori
Mekjavić, Ivana ; Radić, Jure
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Durability and Maintenance of Concrete Structures
/ Radić, Jure - Zagreb : SECON HDGK, 2004, 329-336
Skup
Proceedings of the International Symposium organized by Croatian Society of Structural Engineers (CSSE) and Austrian Society for Concrete and Construction Technology (ASCCT)
Mjesto i datum
Dubrovnik, Hrvatska, 21.10.2004. - 23.10.2004
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
monitoring; bridges; natural frequency; structural damage identification; dynamic finite element analysis; measurements
Sažetak
Dynamic analyses of the representative concrete bridge superstructures with spans up to 50 m, have been utilized to check the load-carrrying capacity and serviceability of bridges and overpasses on newly Croatian highways. Traditional non-destructive evaluation methods, such as acoustic emission, ultrasonic, thermograph, visual inspection and vibration measurements have been often employed to assess the structural integrity of a bridge. These methods, however, do not produce quantitative damage information that can be used to design a repair or assess the safety of the damaged structure. This shortcomings can be overcome when vibration measurements are used with the system identification algorithms. The study reported in this paper is the first stage of a research aimed at developing an effective and reliable monitoring method for structural damage identification. A computational procedure for structural damage identification using only the measured natural frequencies is proposed. A laboratory test was performed on a simply supported reinforced concrete beam to demonstrate the effectiveness of the proposed method. The results of the damage identification procedure show that this method can accurately locate the damage and predict the extent of the damage.
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo
