Publikace detail

Utilization of Method of Acoustic Emission to Classify Condition of Prestressed Concrete Girders

Autoři: Stryk Josef | Pospíšil Karel | Frýbort Aleš | Kořenská Marta

Rok: 2004

Druh publikace: článek ve sborníku

Název zdroje: Nové trendy ve fyzice

Název nakladatele: Vysoké učení technické v Brně

Místo vydání: Brno

Strana od-do: 959-965

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Využití metody akustické emise pro určení stavu předpjatých nosníků		akustická emise; nosník; předpjatý
eng	Utilization of Method of Acoustic Emission to Classify Condition of Prestressed Concrete Girders	There is not estabilished any non-destructive instrument, which would be able to determine qualities of prestressed reinforcement (PR) in concrete structures such as bridges, dams reservoirs, etc., with sufficient accuracy and at the affordable cost. PR is basic element of structural stability in a great amount of concrete structures. Therefore it is very important to find relatively inexpensive and adequately reliable no destructive method that would be capable to determine PR condition of such structures. In this paper will be stated an evaluation measurements executed on prestressed railway sleepers of BP-3 type by an acoustic emission method (AE). The measurement results executed on sleepers with non-corroded reinforcement will be compared with results of sleepers with corroded reinforcement. Furthermore there will be stated measurements realiyed on bridge girder of KA type, which was taken out of bridge structre and investugated by AE method.	acoustic emission;girder; prestressed

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