ログイン
言語:

WEKO3

  • トップ
  • ランキング
To
lat lon distance
To

Field does not validate



インデックスリンク

インデックスツリー

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

{"_buckets": {"deposit": "891df182-9ea1-4e1c-b537-2b768967f5f3"}, "_deposit": {"id": "2007447", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2007447"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02007447", "sets": ["1642837728262", "1642838406845"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "\u77f3\u57a3\u5cf6\u306e\u9244\u7b4b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u9020\u6821\u820e\u306e\u8010\u4e45\u6027", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "An Investigation Studiy on Durability and Deterioration of Reinforced Concrete School Houses in Ishigaki Island", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "\u5177\u5fd7, \u5e78\u660c", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u548c\u4ec1\u5c4b, \u6674\u8b99", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u4f0a\u826f\u6ce2, \u7e41\u96c4", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Gushi, Yukimasa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Waniya, Haruyoshi", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Iraha, Shigeo", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "This paper describes an study on durability aspect of reinforced concrete school houses in Ishigaki Island. The school houses have been seriouly damaged on account of corrosion of steel bars embeded in concrete. The highest salt content of concrete samples taken from school houses amounts to as high as 1.41%, and the average salt content of the samples is 0.37%. The salt contained in concrete has been responsible for the above damages. 33% of all of the school houses are damaged in columns and girders, and 83% of school houses are deteriorated in some to considerable degree in slabs. It must be said that some fundamental changes in the method of construction of reinforced concrete school buildings are needed. Some remarks clarified in this investigation are mentioned: 1. The salt above come from sea sands, sea gravels and mixing water. Some salt in concrete also come from sea water directly. The concrete made from sea gravels contains 0.52% of salt in mortar weight, and the concrete made from crushed stones contained 0.24% salt on the average. 2. The protective measures for harmful salt content must be taken by regulating not only the use of sea sands but also the use of sea gravels. The mixing water other than tap water must be examined before its use. 3. The average values of concrete samples in specific weight and absorption capacity are 2.23 and 9.49%, respectively. These values show the concrete quality of the school houses in this island are not durable. 4. Even the laves in newly built school houses are slightly damaged. The most responsible for this fact is poor construction practice in placing steel bars. 5. The hand-rails of stairs are damaged at 100% degree. The conditions exposed to rain, wind and sunshine, small cross sections and containing many steel bar in small spaces are responsible for the above damage. 6. The high ratio of damaged school houses are due partly to small number of newly built houses, which comes from decreasing tendency of population in Ishigaki Island. 7. Slabs near the outdoor columns and lave ends are damaged fastly and seriously. The main reasons for the above are their small dimensions and thin concrete covers on steel bars.", "subitem_description_type": "Other"}, {"subitem_description": "\u7d00\u8981\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u7409\u7403\u5927\u5b66\u7406\u5de5\u5b66\u90e8"}, {"subitem_1522300295150": "en", "subitem_1522300316516": "Science and Engineering Division, University of the Ryukyus"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/26814"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0387-429X"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250785"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "\u7409\u7403\u5927\u5b66\u7406\u5de5\u5b66\u90e8\u7d00\u8981. \u5de5\u5b66\u7bc7"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "Bulletin of Science \u0026 Engineering Division, University of the Ryukyus. Engineering"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueNumber": "13", "bibliographicPageEnd": "201", "bibliographicPageStart": "147"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "No13P147.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2007447/files/No13P147.pdf"}, "version_id": "8e5e4a75-018b-48d4-a9c3-e88a17b7a4c4"}]}, "item_title": "\u77f3\u57a3\u5cf6\u306e\u9244\u7b4b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u9020\u6821\u820e\u306e\u8010\u4e45\u6027", "item_type_id": "15", "owner": "1", "path": ["1642837728262", "1642838406845"], "permalink_uri": "http://hdl.handle.net/20.500.12000/26814", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2013-09-30"}, "publish_date": "2013-09-30", "publish_status": "0", "recid": "2007447", "relation": {}, "relation_version_is_last": true, "title": ["\u77f3\u57a3\u5cf6\u306e\u9244\u7b4b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u9020\u6821\u820e\u306e\u8010\u4e45\u6027"], "weko_shared_id": -1}
  1. 紀要論文
  2. 琉球大学理工学部紀要 工学編
  3. 13号
  1. 部局別インデックス
  2. 工学部

石垣島の鉄筋コンクリート造校舎の耐久性

http://hdl.handle.net/20.500.12000/26814
http://hdl.handle.net/20.500.12000/26814
00a833e9-cda4-4b7e-ac22-3453dbd92793
名前 / ファイル ライセンス アクション
No13P147.pdf No13P147.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2013-09-30
タイトル
タイトル 石垣島の鉄筋コンクリート造校舎の耐久性
言語 ja
作成者 具志, 幸昌

× 具志, 幸昌

ja 具志, 幸昌

和仁屋, 晴讙

× 和仁屋, 晴讙

ja 和仁屋, 晴讙

伊良波, 繁雄

× 伊良波, 繁雄

ja 伊良波, 繁雄

Gushi, Yukimasa

× Gushi, Yukimasa

en Gushi, Yukimasa

Waniya, Haruyoshi

× Waniya, Haruyoshi

en Waniya, Haruyoshi

Iraha, Shigeo

× Iraha, Shigeo

en Iraha, Shigeo

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 This paper describes an study on durability aspect of reinforced concrete school houses in Ishigaki Island. The school houses have been seriouly damaged on account of corrosion of steel bars embeded in concrete. The highest salt content of concrete samples taken from school houses amounts to as high as 1.41%, and the average salt content of the samples is 0.37%. The salt contained in concrete has been responsible for the above damages. 33% of all of the school houses are damaged in columns and girders, and 83% of school houses are deteriorated in some to considerable degree in slabs. It must be said that some fundamental changes in the method of construction of reinforced concrete school buildings are needed. Some remarks clarified in this investigation are mentioned: 1. The salt above come from sea sands, sea gravels and mixing water. Some salt in concrete also come from sea water directly. The concrete made from sea gravels contains 0.52% of salt in mortar weight, and the concrete made from crushed stones contained 0.24% salt on the average. 2. The protective measures for harmful salt content must be taken by regulating not only the use of sea sands but also the use of sea gravels. The mixing water other than tap water must be examined before its use. 3. The average values of concrete samples in specific weight and absorption capacity are 2.23 and 9.49%, respectively. These values show the concrete quality of the school houses in this island are not durable. 4. Even the laves in newly built school houses are slightly damaged. The most responsible for this fact is poor construction practice in placing steel bars. 5. The hand-rails of stairs are damaged at 100% degree. The conditions exposed to rain, wind and sunshine, small cross sections and containing many steel bar in small spaces are responsible for the above damage. 6. The high ratio of damaged school houses are due partly to small number of newly built houses, which comes from decreasing tendency of population in Ishigaki Island. 7. Slabs near the outdoor columns and lave ends are damaged fastly and seriously. The main reasons for the above are their small dimensions and thin concrete covers on steel bars.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学理工学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/26814
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0387-429X
収録物識別子タイプ NCID
収録物識別子 AN00250785
収録物名
言語 ja
収録物名 琉球大学理工学部紀要. 工学篇
書誌情報
号 13, p. 147-201
戻る
0
views
See details
Views

Versions

Ver.1 2022-01-28 04:22:39.282768
Show All versions

Share

Mendeley Twitter Facebook Print Addthis

Cite as

エクスポート

OAI-PMH
  • OAI-PMH JPCOAR
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON

確認


Powered by WEKO3


Powered by WEKO3