【正文】 方案比選 比選的標準比選的標準只要依據(jù)安全、功能、經(jīng)濟、與美觀。某預應力簡支 T 梁設計計算書畢業(yè)論文目錄摘要 .........................................................................................................................................IABSTRACT..........................................................................................................................II第 1 章 ...................................................................................................設計內容及構造布置.................................................................................................................................................1 設計內容 ...................................................................................................................1 方案比選 ...................................................................................................................2 橫截面布置 ...............................................................................................................4 橫截面沿跨長的變化 ...............................................................................................7 橫隔梁的設置 ...........................................................................................................7第 2 章 ...............................................................................................................主梁內力計算.................................................................................................................................................7 恒載內力計算 ...........................................................................................................7 活載內力計算 .........................................................................................................10 主梁內力 組合 .........................................................................................................18第 3 章 .......................................................................................預應力鋼束的估算以及布置...............................................................................................................................................19 跨中截面鋼束的估算與確定 .................................................................................19 預應力鋼束布置 .....................................................................................................19 非預應力鋼筋截面積估算及布置 .........................................................................24第 4 章 ...............................................................................................計算主梁截面幾何特性...............................................................................................................................................24 主梁預制并張拉預應力鋼筋 .................................................................................25 灌漿封錨，主梁吊裝就位并現(xiàn)澆 300MM 濕接縫 ...............................................25 橋面、欄桿施工和運營階段 .................................................................................26第 5 章 ...................................................................................................鋼束預應力損失計算...............................................................................................................................................27 預應力鋼束與管道壁之間的摩擦引起的預應力損失 .........................................27 由錨具變形、鋼束回縮引起的損失 .....................................................................28 混凝土彈性壓縮引起的損失 .................................................................................29 由鋼束應力松弛引起的損失 .................................................................................30 混凝土收縮和徐變引起的損失 .............................................................................31 預應力內力計算及鋼束預應力損失匯總 .............................................................32第 6 章 ...............................................................................................................主梁截面驗算...............................................................................................................................................32 截面應力驗算 .........................................................................................................33 抗裂性驗算 .............................................................................................................37第 7 章 ...................................................................................................錨固區(qū)局部承壓驗算...............................................................................................................................................39第 8 章 ...............................................................................................................主梁變形驗算...............................................................................................................................................41 荷載短期效應作用下主梁撓度驗算 .....................................................................41 預加力引起的上拱度計算 .....................................................................................42 預拱度的設置 .........................................................................................................43第 9 章 ...................................................................................................................橫隔梁計算...............................................................................................................................................43 確定作用在跨中橫隔梁上的計算荷載 .................................................................43 跨中橫隔梁的內力影響 .........................................................................................44第 10 章 .............................................................................................................行車道板計算...............................................................................................................................................47 懸臂板荷載效應計算（邊梁） .............................................................................47 鉸接懸臂板荷載效應計算（中梁） .....................................................................48參考文獻 ....................................