1963 年に建設された建物から採取したコンクリートの力学的特性

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/12146
ファイル
タイトル
1963 年に建設された建物から採取したコンクリートの力学的特性
別タイトル
Mechanical properties of Concrete from Existing Building Constructed in 1963
著者
氏名 瀬川 優斗
ヨミ セガワ ユウト
別名 Segawa Yuto
氏名 荒木 秀夫
ヨミ アラキ ヒデオ
別名 Araki Hideo
氏名 坂本 英輔
ヨミ サカモト エイスケ
別名 Sakamoto Eisuke
キーワード
Old concrete
Mechanical properties
Existing building
Compressive test
Splitting test
抄録

The properties of old concrete are important factors in the seismic evaluations of existing buildings. However, those properties are sometime different from design performance in the structural draft. It is investigated that those properties of concrete are affected by deteriorations over long time periods, uncertainty of construction and several other factors. 54 concrete specimens were manufactured from the concrete cylinders from school building planed for demolition. In this paper, the mechanical properties of old concrete are mainly discussed. By compressive tests using 26 concrete specimens the compressive strengths were widely distributed. The lowest strength 8.4 N/mm2 was less than half of the specified strength of 17.6N/mm2, although the average compressive strength of 17.1N/mm2 was almost the same as the specified strength. The tensile strengths by using 28 concrete specimens were distributed from 0.54N/ mm2 to 1.95N/mm2. The modulus of elasticity was approximately 0.925 times of the estimated values by using the present equations.

掲載雑誌名
広島工業大学紀要. 研究編
51
開始ページ
61
終了ページ
68
出版年月日
2017-02
出版者
広島工業大学
ISSN
1346-9975
NCID
AA11599110
本文言語
日本語
資料タイプ
紀要論文
著者版フラグ
出版社版
区分
it-hiroshima