【正文】 ............................................................................................. 1 主要設(shè)計(jì)技術(shù)標(biāo)準(zhǔn) ........................................................................................... 2 第二章 方案比選 ........................................................................................................ 3 比選方案的主要標(biāo)準(zhǔn) ....................................................................................... 3 方案 編制 ........................................................................................................... 3 方案比選 ........................................................................................................... 4 第三章 主梁設(shè)計(jì) ........................................................................................................ 5 設(shè)計(jì)資料 ........................................................................................................... 5 橫截面布置 ....................................................................................................... 7 主梁間距和主梁片數(shù) ....................................................................................... 7 主梁跨中截面細(xì)部尺寸 ................................................................................... 8 梁毛截面幾何特性計(jì)算 ................................................................................... 9 截面幾何特性 ................................................................................................. 9 檢驗(yàn)截面效率指標(biāo) ρ.......................................................................................11 第四章 行車道板計(jì)算 .............................................................................................. 12 恒載及其內(nèi)力 ................................................................................................. 12 汽車荷載產(chǎn)生的內(nèi)力 ..................................................................................... 12 內(nèi)力組合 ......................................................................................................... 14 第五章 主梁內(nèi)力計(jì)算及配筋 .................................................................................. 15 恒載內(nèi)力計(jì)算 ................................................................................................. 15 主梁活載橫向分布系數(shù)計(jì)算 ......................................................................... 18 跨中的橫向分布系數(shù) mc ................................................................................ 18 V 支點(diǎn)的荷載橫向分布系數(shù) 0m ........................................................................ 24 橫向分布系數(shù)匯總 ........................................................................................ 25 活載內(nèi)力計(jì)算 ................................................................................................. 26 主梁跨中截面彎矩及剪力 .............................................................................. 26 主梁 L/4截面彎矩 ......................................................................................... 28 主梁支點(diǎn)截面剪力 ........................................................................................ 29 主梁內(nèi)力組合 ................................................................................................. 31 預(yù)應(yīng)力鋼束的估算及其布置 ......................................................................... 33 跨中截面鋼束的估算及確定 .......................................................................... 33 預(yù)應(yīng)力鋼束的布置 ........................................................................................ 34 非預(yù)應(yīng)力鋼筋截面積估算及布置 ................................................................... 38 主梁截面幾何特性計(jì)算 ................................................................................. 39 持久狀況截面承載能力極限狀態(tài)計(jì)算 ......................................................... 41 正截面承載力計(jì)算 ........................................................................................ 41 斜截面承載力計(jì)算 ........................................................................................ 42 鋼束預(yù)應(yīng)力損失估算 ..................................................................................... 43 應(yīng)力驗(yàn)算 ......................................................................................................... 50 抗裂性驗(yàn)算 ................................................................................................... 54 主梁變形（撓度）計(jì)算 ................................................................................ 57 錨固區(qū)局部承壓計(jì)算 ................................................................................... 58 第六章 橫隔梁內(nèi)力計(jì)算及配筋 .............................................................................. 61 確定作用在橫隔梁上的計(jì)算荷載 ................................................................. 61 繪制中橫隔梁的內(nèi)力影響線 ......................................................................... 62 繪制剪力影響線 ............................................................................................. 63 截面內(nèi)力計(jì)算 ................................................................................................. 64 內(nèi)力組合 ......................................................................................................... 64 橫隔 梁截面配筋與驗(yàn)算 ................................................................................. 64 第七章 橋面結(jié)構(gòu)設(shè)計(jì) .............................................................................................. 68 VI 橋面布置及鋪裝 ............................................................................................. 68 橋面防水和排水設(shè)施 ..................................................................................... 69 防水層的設(shè)置 ............................................................................................... 69 泄水管和排水管的設(shè)置 ................................................................................. 69 橋面伸縮裝置 ................................................................................................. 70 人行道、欄桿和燈柱 ..................................................................................... 71 第八章 支座的設(shè)計(jì) ........................................................................