【正文】 ......................................... 9 汽車荷載橫向分布系數(shù)計(jì)算 ............................................................................ 9 汽車荷載沖擊系數(shù)計(jì)算 .................................................................................. 12 結(jié)構(gòu)重力作用以及影響線計(jì)算 ...................................................................... 13 作用效應(yīng)組合匯總 .................................................................................................... 17 5 預(yù)應(yīng)力鋼筋數(shù)量估算及布置 ............................................................................................ 19 湘陰目邊湖橋施工圖設(shè)計(jì) 預(yù)應(yīng)力鋼筋數(shù)量的估算 ............................................................................................ 19 預(yù)應(yīng)力鋼筋的布置 .................................................................................................... 20 普通鋼筋數(shù)量的估算及布置 .................................................................................... 21 6 換算截面幾何特性計(jì)算 .................................................................................................... 22 換算截面面積 0A ....................................................................................................... 22 換算截面重心的位置 ................................................................................................ 23 換算截面慣性矩 0I .................................................................................................... 23 換算截面的彈性抵抗矩 ............................................................................................ 24 7 承載能力極限狀態(tài)計(jì)算 .................................................................................................... 24 跨中截面正截面抗彎承載力計(jì)算 ............................................................................ 24 斜截面抗彎承載力計(jì)算 ............................................................................................ 25 截面抗剪強(qiáng)度上、下限的復(fù)核 ...................................................................... 25 斜截面抗剪承載力計(jì)算 .................................................................................. 27 8 預(yù)應(yīng)力損失計(jì)算 ................................................................................................................ 29 錨具變形、回縮引起的應(yīng)力損失 2l? ...................................................................... 29 鋼筋與臺(tái)座間的溫差引起的 應(yīng)力損失 3l? ............................................................... 29 混凝土彈性壓縮引起的預(yù)應(yīng)力損失 4l? .................................................................. 30 預(yù)應(yīng)力鋼絞線由于應(yīng)力松弛引起的預(yù)應(yīng)力損失 5l? ............................................... 30 混凝土的收縮和徐變引起的應(yīng)力損失 6l? .............................................................. 31 預(yù)應(yīng)力損失組合 ........................................................................................................ 33 9 正常使用極限狀態(tài)計(jì)算 .................................................................................................... 34 正截面抗裂性驗(yàn)算 .................................................................................................... 34 斜截面抗裂性驗(yàn)算 .................................................................................................... 38 正溫差應(yīng)力 ...................................................................................................... 38 反溫差應(yīng)力（為正溫差應(yīng)力乘以 ） ..................................................... 39 主拉應(yīng)力 tps ..................................................................................................... 39 10 變形計(jì)算 .......................................................................................................................... 42 湘陰目邊湖橋施工圖設(shè)計(jì) 正常使用階段的撓度計(jì)算 ...................................................................................... 42 預(yù)加力引起的反拱度計(jì)算及預(yù)拱度的設(shè)置 .......................................................... 43 預(yù)加力引起的反拱度計(jì)算 ............................................................................ 43 預(yù)拱度的設(shè)置 ................................................................................................ 45 11 持久狀態(tài)應(yīng)力驗(yàn)算 .......................................................................................................... 45 跨中截面混凝土的法向壓應(yīng)力 kc? 驗(yàn)算 ................................................................ 45 跨中預(yù)應(yīng)力鋼絞線的拉應(yīng)力 p? 驗(yàn)算 ..................................................................... 46 斜截面主應(yīng)力驗(yàn) 算 .................................................................................................. 46 12 短暫狀態(tài)應(yīng)力驗(yàn)算 .......................................................................................................... 48 跨中截面 .................................................................................................................. 49 由預(yù)加力產(chǎn)生的混凝土法向應(yīng)力 ................................................................ 49 由板自重產(chǎn)生的板截面上、下緣應(yīng)力 ........................................................ 50 4l 截面 .................................................................................................................... 50 支點(diǎn)截面 .................................................................................................................. 51 13 最小配筋率復(fù)核 .............................................................................................................. 52 14 鉸縫計(jì)算 .......................................................................................................................... 54 鉸縫剪力計(jì)算 .......................................................................................................... 54 鉸縫剪力影響線 ............................................................................................ 54 鉸縫剪力 ........................................................................................................ 55 鉸縫抗剪強(qiáng)度驗(yàn)算 .................................................................................................. 55 15 預(yù)制空心板吊杯計(jì)算 ...................................................................................................... 57 16 支座計(jì)算 ...................