【正文】 m bridge。 Deflection。III畢業(yè)設(shè)計（論文）原創(chuàng)性聲明和使用授權(quán)說明原創(chuàng)性聲明本人鄭重承諾：所呈交的畢業(yè)設(shè)計（論文），是我個人在指導(dǎo)教師的指導(dǎo)下進行的研究工作及取得的成果。對本研究提供過幫助和做出過貢獻的個人或集體，均已在文中作了明確的說明并表示了謝意。作者簽名：　　 　 　　 日　 期：　　 　 　　 IV目錄第一章 基本資料 ........................................................................................................1 概況 ....................................................................................................................1 地質(zhì)條件 ........................................................................................................................1 水文條件 ........................................................................................................................1 氣象條件 ........................................................................................................................1 主要設(shè)計技術(shù)標準 ............................................................................................2第二章 方案比選 ........................................................................................................3 比選方案的主要標準 ........................................................................................3 方案編制 ............................................................................................................3 方案比選 ............................................................................................................4第三章 主梁設(shè)計 ........................................................................................................5 設(shè)計資料 ............................................................................................................5 橫截面布置 ........................................................................................................7 主梁間距和主梁片數(shù) ....................................................................................................7 主梁跨中截面細部尺寸 ................................................................................................8 梁毛截面幾何特性計算 ....................................................................................9 截面幾何特性 ................................................................................................................9 檢驗截面效率指標 ρ...................................................................................................11第四章 行車道板計算 ..............................................................................................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)力計算及配筋 ..................................................................................15 恒載內(nèi)力計算 ..................................................................................................15 主梁活載橫向分布系數(shù)計算 ..........................................................................18 跨中的橫向分布系數(shù) mc.............................................................................................18V 支點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算 ..................................................................................39 持久狀況截面承載能力極限狀態(tài)計算 ..........................................................41 正截面承載力計算 ......................................................................................................41 斜截面承載力計算 ......................................................................................................42 鋼束預(yù)應(yīng)力損失估算 ......................................................................................43 應(yīng)力驗算 ..........................................................................................................50 抗裂性驗算 ....................................................................................................54 主梁變形（撓度）計算 ................................................................................57 錨固區(qū)局部承壓計算 ....................................................................................58第六章 橫隔梁內(nèi)力計算及配筋 ..............................................................................61 確定作用在橫隔梁上的計算荷載 ..................................................................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)力計算 ..................................................................................................64 內(nèi)力組合 ..........................................................................................................64 橫隔梁截面配筋與驗算 ..................................................................................64第七章 橋面結(jié)構(gòu)設(shè)計 ................................