{"_buckets": {"deposit": "2728414b-26c7-41a7-8c8f-36b747a6a8de"}, "_deposit": {"id": "28272", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "28272"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00028272"}, "item_7_alternative_title_1": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "AE\u6cd5\u306b\u3088\u308b\u9577\u671f\u4f9b\u7528\u3057\u305fRC\u30a2\u30fc\u30c1\u90e8\u6750\u306e\u640d\u50b7\u5ea6\u8a55\u4fa1\u306b\u95a2\u3059\u308b\u7814\u7a76"}]}, "item_7_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2015-04", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "2", "bibliographicPageEnd": "116", "bibliographicPageStart": "111", "bibliographicVolumeNumber": "67", "bibliographic_titles": [{"bibliographic_title": "\u65b0\u6f5f\u5927\u5b66\u8fb2\u5b66\u90e8\u7814\u7a76\u5831\u544a"}, {"bibliographic_title": "\u65b0\u6f5f\u5927\u5b66\u8fb2\u5b66\u90e8\u7814\u7a76\u5831\u544a", "bibliographic_titleLang": "en"}]}]}, "item_7_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "It is widely reported that durability of concrete decreases readily due to such effects, as salt, chemical attack or freezingthawing\\nprocess. In existing structures, mechanical damage of concrete has been practically inspected from the strength by\u3000a compression test. For effective maintenance of concrete structures, it is necessary to evaluate not only the strength but\\nalso the degree of damage. By the authors, quantitative damage evaluation of structural concrete is proposed by applying\u3000acoustic emission (AE) technique and damage mechanics. In experiments, core-samples were collected from an arch portion of a reinforced concrete road bridge that had been in service for 87 years. Compressive strengths and Young\u2019s moduli were measured during the compression test along with AE monitoring. Dynamic Young\u2019s modulus was also calculated from the longitudinal wave velocity. Thus, the relative damages are quantitatively evaluated from static and dynamic Young\u2019s moduli and compared with results of AE rate-process analysis.", "subitem_description_type": "Abstract"}, {"subitem_description": "\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u69cb\u9020\u7269\u306b\u95a2\u3059\u308b\u8010\u4e45\u6027\u306e\u4f4e\u4e0b\u306f\u3001\u5916\u90e8\u74b0\u5883\u306e\u5f71\u97ff\u306b\u3088\u308b\u640d\u50b7\u84c4\u7a4d\u306b\u3088\u308a\u9032\u884c\u3059\u308b\u3002\u4e00\u822c\u7684\u306b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u640d\u50b7\u306f\u5727\u7e2e\u5f37\u5ea6\u306a\u3069\u306b\u3088\u308a\u8a55\u4fa1\u3055\u308c\u308b\u304c\u3001\u3088\u308a\u52b9\u679c\u7684\u306a\u7dad\u6301\u7ba1\u7406\u306b\u306f\u5f37\u5ea6\u7279\u6027\u306e\u307f\u3067\u306f\u306a\u304f\u640d\u50b7\u5ea6\u306e\u63a8\u5b9a\u304c\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002\u672c\u5831\u3067\u306f\u3001AE\uff08Acoustic 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"dynamic Young\u2019s modulus", "subitem_subject_scheme": "Other"}, {"subitem_subject": "compression test", "subitem_subject_scheme": "Other"}, {"subitem_subject": "non-destructive testing", "subitem_subject_scheme": "Other"}, {"subitem_subject": "AE", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u640d\u50b7\u529b\u5b66", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u52d5\u5f3e\u6027\u4fc2\u6570", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u5727\u7e2e\u5f37\u5ea6\u8a66\u9a13", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u975e\u7834\u58ca\u691c\u67fb", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Damage Evaluation of an Historic Concrete Arch Bridge by Acoustic Emission", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Damage Evaluation of an Historic Concrete Arch Bridge by Acoustic Emission"}, {"subitem_title": "Damage Evaluation of an Historic Concrete Arch Bridge by Acoustic Emission", "subitem_title_language": "en"}]}, "item_type_id": "7", "owner": "1", "path": ["453/456", "485/872/1583/1587"], "permalink_uri": "http://hdl.handle.net/10191/32049", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_value": "2015-04-20"}, "publish_date": "2015-04-20", "publish_status": "0", "recid": "28272", "relation": {}, "relation_version_is_last": true, "title": ["Damage Evaluation of an Historic Concrete Arch Bridge by Acoustic Emission"], "weko_shared_id": null}