DAMAGE EVALUATION OF PRESTRESSED CONCRETE-PILES BY ACOUSTIC EMISSION

• SHIOTANI Tomoki

  JSCE Research Institute of Technology, Tobishima Corporation

• SHIGEISHI Mitsuhiro

  JSCE Dept. of Civil Eng. & Architecture, Kumamoto University

• OHTSU Masayasu

  JSCE Dept. of Civil Eng. & Architecture, Kumamoto University

Bibliographic Information

Other Title

• プレストレストコンクリート杭のアコースティック・エミッションによる損傷評価

Abstract

A fundamental study on fracture mechanisms of concrete-piles under both cyclic and monotonic loadings is performed by using acoustic emission techniques. Full-scale prestressed high-strength concrete piles are subjected to bending and shear loadings. Growth of cracks is monitored by AE, and three-dimensional AE source location is conducted together with identification of crack. These results are compared with results of the pile integrity tests (PIT) and visual observation. It leads to the conclusion that damage inspection by AE is more effective than by PIT in the case where open cracks due to loading would close under unloading. The crack widths evaluated by AE were remarkably compatible to the results of the wave velocity test.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2000 (655), 133-141, 2000-08-20

  Japan Society of Civil Engineers

Keywords

• acoustic emission
• damage evaluation
• pile integrity test
• prestressed concrete-pile

Details

• CRID: 1390282680286157440
• NII Article ID: 130003801606
• NII Article ID: 10004545257
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2000.655_133
• ISSN: 18827187
• ISSN: 02897806
• NDL BIB ID: 5466450
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5466450
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/2000/655/2000_655_133/_pdf
• Data Source:
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  • CiNii Articles
• Abstract License Flag: Disallowed