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発表 Impact Failure Test of Large Scale and Frame Type of PC Rock-shed

作成年度 1997年度
論文名 Impact Failure Test of Large Scale and Frame Type of PC Rock-shed
論文名(和訳) Impact Failure Test of Large Scale and Frame Type of PC Rock-shed
論文副題
発表会 2nd Asia-Pacific Conference on SHOCK & IMPACT LOADS ON STRUCTURES
誌名(No./号数)
発表年月日 1997/11/25 ~ 1997/11/27
所属研究室/機関名 著者名(英名)
構造研究室今野 久志(KONNO Hisashi)
構造研究室佐藤 昌志(SATO Masashi)
北海道開発局情報管理室中野 修(NAKANO Osamu)
室蘭工業大学岸 徳光(KISHI Norimitsu)
抄録
In japan,There are lots of rock-sheds to protect roads and vehicles from falling rocks which are constructed near cliffs in mountainous and/or coastal areas.Most of the rock-sheds are Reninforced Concrete(RC)and/or Prestressed Concrete(PC)structures.Two types of PC rock-sheds are mostly constructed which are inverse L-shape(2-hinge supported and 1-rigidly connected structure)and frame type(3-rigidly supported/connected structure).In this paper,impact failure tests of large scale frame type of PC rock-shed are conducted by means of iterative and single loading by steel weight falling method.[*]Five PC rock-shed frames are used to investigate the effects of loading point and loading methed on the time history of gending moment distribution and crack pattern/failuer mode.The results obteined from this study are as follows;1)The mid-spen loding is predominant for the bending failure of roof girder;2)Impact failure of PC rock-shed is severely influenced due to iterative loading because of input energy by weight falling being accumulated;3)It is made clear that PC rock-shed model used here has five times safety margin with reference to input falling rock energy for design.
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