Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/14599
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dc.contributor.advisor陳豪吉zh_TW
dc.contributor.advisorHow-Ji Chenen_US
dc.contributor.author黃建豪zh_TW
dc.contributor.authorHuang, Chien-Haoen_US
dc.date2003zh_TW
dc.date.accessioned2014-06-06T06:52:48Z-
dc.date.available2014-06-06T06:52:48Z-
dc.identifier.urihttp://hdl.handle.net/11455/14599-
dc.description.abstract本文旨在研究鋼筋輕質混凝土樑於反覆荷重作用下的撓曲行為,並與鋼筋常重混凝土樑加以比較,探討鋼筋輕質混凝土樑於不同變數下,其強度、勁度的衰減及能量消散的情形,以驗證輕質混凝土之優越耐震性。研究中共製作了44根樑試體,其變數包含混凝土強度、鋼筋比、箍筋間距及斷面尺寸等。 研究結果指出鋼筋輕質混凝土(R.L.C.)樑較鋼筋常重混凝土(R.C.)樑有較低或相同之韌性。對鋼筋比小於2.88%的樑試體,R.C.樑與R.L.C.樑,在混凝土強度增加時,韌性亦相對提升。當試體為韌性破壞時,於中、低混凝土強度等級,R.L.C.樑之強度及勁度衰減皆較R.C.樑和緩,而當試體傾向壓力破壞,R.L.C.樑之強度及勁度衰減和R.C.樑相似或較差。在能量消散方面,當試體鋼筋比小於最大鋼筋比時,混凝土強度的提升將有效提升R.L.C.樑之能量消散值,而當試體傾向壓力破壞,R.L.C.樑之能量消散值和R.C.樑一致或較差。箍筋間距的不同,對樑反覆荷重下的撓曲行為並沒有明顯的影響。zh_TW
dc.description.abstractThe flexural behavior of reinforced lightweight aggregate concrete beam (R.L.C.) under cyclic loading is investigated in this study. The results are compared to corresponding reinforced concrete beam (R.C.). A total of 44 beam specimens were made. The parameters included concrete type, concrete strength, reinforcement ratio, spacing of shear reinforcement and section size. The test results show that R.L.C. beams have same or less ductility than R.C. beams. For specimens of reinforcement ratio smaller than 2.88%. Both R.L.C. and R.C. beams. increase of concrete strength will increase the ductility. For specimens of reinforcement ratio smaller than ρmax . Both at lower and higher concrete strength level, the decaying of strength and stiffness of R.L.C. beams appear milder than those of R.C. beams. By increase of concrete strength. The energy dissipation capacity of R.L.C. beams were obviously increased. When specimens were tend to compression fractured. The decaying of strength and stiffness of R.L.C. beams are similar or poor than those of R.C. beams. The energy dissipation capacity of R.L.C. beams are also similar or poor than those of R.C. beams. Different spacing of shear reinforcement have no obviously effect to the beams.en_US
dc.description.tableofcontents摘要…………………………………………………Ⅰ Abstract……………………………………………Ⅱ 目錄…………………………………………………Ⅳ 表目錄………………………………………………Ⅵ 圖目錄………………………………………………Ⅶ 照片目錄……………………………………………Ⅸ 第一章 緒論 1-1前言 ……………………………………………..1 1-2研究目的與內容…………………………………..2 第二章 文獻回顧 2-1輕質骨材混凝土之力學性質……………………….4 2-2鋼筋輕質骨材混凝土受反覆荷重之撓曲行為……….5 2-3鋼筋常重混凝土受反覆荷重之撓曲行為…………….6 2-4反覆荷重之加載方式………………………………….9 第三章 試驗計畫 3-1試體規劃………………………………………………12 3-2試體材料………………………………………………13 3-3試體製作………………………………………………13 3-4試驗設備………………………………………………15 3-5試驗方法………………………………………………16 第四章 試驗結果分析與討論 4-1試體破壞概述…………………………………………27 4-2強度及勁度的遞減……………………………………30 4-3延展性指數分析………………………………………35 4-4能量消散分析…………………………………………36 第五章 結論與建議 5-1 結論…………………………………………………...61 5-2 建議…………………………………………………...62 參考文獻………………………………………………….64 表目錄 表3-1 鋼筋混凝土樑試體規劃表…………………………19 表3-2 混凝土配比表………………………………………19 表3-3 水泥性質……………………………………………20 表3-4 天然粗、細骨材之基本性質………………………21 表3-5 天然粗、細骨材之篩分析表………………………21 表3-6 輕質骨材之基本性質………………………………22 表3-7 HICON HPC 1000之性質………………………….22 表3-8 鋼筋之基本性質……………………………………22 表4-1 鋼筋混凝土之延展指數……………………………40 表4-2 各變數之延展指數平均值…………………………41 表4-3 混凝土圓柱試體28天平均抗壓強度……………..41 圖目錄 圖2-1 輕質骨材與常重骨材之受力示意圖……………..11 圖2-2 降伏位移之定義…………………………………..11 圖3-1 鋼筋混凝土樑配筋圖……………………………..23 圖3-2 樑試體之斷面配筋圖……………………………..23 圖3-3 雙筋矩形樑的應變及應力分佈圖….…………….24 圖3-4 反覆載重加載歷程.……………………………….24 圖4-1 20 MPa R.L.C.樑試體之載重與中點位移關係圖.42 圖4-2 40 MPa R.L.C.樑試體之載重與中點位移關係圖.43 圖4-3 20 MPa R.C.樑試體之載重與中點位移關係圖….44 圖4-4 40 MPa R.C.樑試體之載重與中點位移關係圖….45 圖4-5 強度及勁度定義圖……………..…………………46 圖4-6 R.L.C.與R.C.樑構件之勁度折減(ρ=1.03%)……47 圖4-7 R.L.C.與R.C.樑構件之勁度折減(ρ=2.30%)……47 圖4-8 R.L.C.與R.C.樑構件之勁度折減(ρ=2.88%)……48圖4-9 不同鋼筋比下R.L.C.與R.C.樑構件之勁度折減..48圖4-10 R.L.C.與R.C.樑構件之強度折減(ρ=1.03%)……49圖4-11 R.L.C.與R.C.樑構件之強度折減(ρ=2.30%)…….49圖4-12 R.L.C.與R.C.樑構件之強度折減(ρ=2.88%)…….50 圖4-13 不同鋼筋比下R.L.C.與R.C.樑構件之強度折減..50 圖4-14 不同鋼筋比下R.L.C.與R.C.樑構件之延展性指數51 圖4-15 能量消散的計算…………………………………...51 圖4-16 R.L.C.與R.C.樑構件之能量消散(ρ=1.03%)…….52 圖4-17 R.L.C.與R.C.樑構件之能量消散(ρ=2.30%)…….52 圖4-18 R.L.C.與R.C.樑構件之能量消散(ρ=2.88%)…….53 圖4-19 不同鋼筋比下R.L.C.與R.C.樑構件之能量消散…53 圖4-20 不同鋼筋比下R.L.C.與R.C.樑構件之降伏位移值54照片目錄 照片3-1 50噸MTS萬能試驗機………………………...25 照片3-2 資料擷取系統………………….…………….....25 照片3-3 抗壓機………………………………………..…26 照片3-4 試體安裝……………………………..…………26 照片4-1 L20410M與N20410M樑試體於μ=1.0之裂縫發展情形………………...….…………….…………..55 照片4-2 L20410M與N20410M樑試體於μ=3.0之裂縫發展情形………………………….…………………. 55 照片4-3 L40410M與N40410M樑試體於μ=1.0之裂縫發展情形…………………….………………………..56 照片4-4 L40410M與N40410M樑試體於μ=3.0之裂縫發展情形.…………………………..………………. ..56 照片4-5 L20610M與N20610M樑試體於μ=1.0之裂縫發展情形.……………………………………………57 照片4-6 L20610M與N20610M樑試體於μ=2.5之裂縫發展情形.……………………………………………57 照片4-7 L40610M與N40610M樑試體於μ=1.0之裂縫發展情形………………………..…………………....58 照片4-8 L40610M與N40610M樑試體於μ=2.0之裂縫發展情形……………………………………………58 照片4-9 L20610S與N20610S樑試體於μ=1.0之裂縫發展情形……………………………………………59 照片4-10 L20610S與N20610S樑試體於μ=1.5之裂縫發展情形……………………………………………59 照片4-11 L40610S與N40610S樑試體於μ=1.5之裂縫發展情形………………………………………….…60 照片4-12 L40610S與N40610S樑試體於μ=2.0之裂縫發展情形……………………………………………60zh_TW
dc.language.isoen_USzh_TW
dc.publisher土木工程學系zh_TW
dc.subjectlightweight aggregate concreteen_US
dc.subject輕質骨材混凝土zh_TW
dc.subjectcyclic loaden_US
dc.subjectflexural behavioren_US
dc.subjectductilityen_US
dc.subjectenergy dissipationen_US
dc.subject反覆荷重zh_TW
dc.subject撓曲行為zh_TW
dc.subject延展性zh_TW
dc.subject能量消散zh_TW
dc.title反覆荷重下鋼筋輕質混凝土樑之撓曲行為zh_TW
dc.titleFlexural Behavior of Reinforced Lightweight Aggregate Concrete Beams under Cyclic Loadingen_US
dc.typeThesis and Dissertationzh_TW
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeThesis and Dissertation-
item.cerifentitytypePublications-
item.fulltextno fulltext-
item.languageiso639-1en_US-
item.grantfulltextnone-
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