Crack Condition Evaluation Approach for the Deteriorated Girder of an RC Bridge

Autor:	Chung Yue Wang, Ming Cheng Chen, Chin Kuo Huang
Rok vydání:	2007
Předmět:	Engineering business.industry Condition evaluation Building and Construction Structural engineering Bridge (nautical) Cracking Flexural strength Girder Nondestructive testing Geotechnical engineering Bearing capacity business Civil and Structural Engineering Neutral axis
Zdroj:	Journal of Bridge Engineering. 12:654-661
ISSN:	1943-5592 1084-0702
DOI:	10.1061/(asce)1084-0702(2007)12:5(654)
Popis:	A crack condition evaluation method is proposed that identifies the damaged state of deteriorated reinforced concrete (RC) girders on bridges directly on-site. This nondestructive testing approach is based on stress wave propagation theory and can identify the profile of flexural crack tips inside RC girders. A damage index is further determined by comparing the measured crack tip and the theoretical neutral axis of a girder. This index can be utilized to analyze the current loading capacity of deteriorated RC girders according to the AASHTO-LRFR Manual (AASHTO 2003), Manual for Condition Evaluation and Load and Resistance Factor Rating of Highway Bridge, Washington, D.C. Experimental results demonstrate that the position of crack tip can be accurately located.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a5bf737597e6ab484f612da3eb7c22b4 https://doi.org/10.1061/(asce)1084-0702(2007)12:5(654) Zobrazit plný text záznamu