【正文】 ....... 19 換算截面幾何特性的計(jì)算 ........................................................................... 22 承載能力極限狀態(tài)計(jì)算 ............................................................................... 23 計(jì)算 預(yù)應(yīng)力損失 ........................................................................................... 27 第 3 章 空心板各狀態(tài)的驗(yàn)算及變形計(jì)算 ............................................................... 33 空心板正常使用極限狀態(tài)的相關(guān)計(jì)算 ...................................................... 33 空心板變形計(jì)算 .......................................................................................... 42 正常使用階段的撓度計(jì)算 ................................................................ 42 預(yù)加力產(chǎn)生的反拱度的計(jì)算及預(yù)拱度的設(shè)置 ................................ 42 空心板持久狀態(tài)下的應(yīng)力驗(yàn)算 .................................................................. 45 跨中截面混凝土法向的壓應(yīng)力驗(yàn)算 ................................................ 45 跨中 截面預(yù)應(yīng)力鋼絞線的拉應(yīng)力驗(yàn)算 ............................................ 45 V 斜截面主應(yīng)力驗(yàn)算 ............................................................................ 46 空心板短暫狀態(tài)的應(yīng)力驗(yàn)算 ...................................................................... 49 最小配筋率的校核 ...................................................................................... 53 第 4 章 空心板的鉸縫及吊環(huán)計(jì)算 ........................................................................... 55 空心板的鉸縫計(jì)算 ...................................................................................... 55 鉸縫剪力計(jì)算 .................................................................................... 55 鉸縫抗剪強(qiáng)度計(jì)算 ............................................................................ 58 預(yù)制空心板的吊環(huán)計(jì)算 .............................................................................. 58 第 5 章 空心板支座計(jì)算 ........................................................................................... 60 支座平面尺寸的選擇 .................................................................................. 60 確定支座的厚度 .......................................................................................... 60 支座的驗(yàn)算 .................................................................................................. 61 支座的偏轉(zhuǎn)驗(yàn)算 ................................................................................ 61 支座的穩(wěn)定性驗(yàn)算 ............................................................................ 61 第 6 章 蓋梁計(jì)算 ....................................................................................................... 63 蓋梁的材料和尺寸 ...................................................................................... 63 蓋梁荷載計(jì)算 .............................................................................................. 63 上部永久荷載 ................................................................................... 63 蓋梁自重作用效應(yīng)的計(jì)算 ............................................................... 64 可變荷載計(jì)算 ................................................................................... 66 雙柱反力計(jì)算 ................................................................................... 74 蓋梁的恒活載作用下各截面的內(nèi)力計(jì)算 .................................................. 75 截面配筋設(shè)計(jì)及承載力校核 ...................................................................... 77 第 7 章 橋墩墩柱的設(shè)計(jì)及計(jì)算 ............................................................................... 80 橋墩墩柱荷載計(jì)算 ...................................................................................... 80 墩柱恒載計(jì)算 ................................................................................... 80 汽車荷載計(jì)算 ................................................................................... 80 雙柱反力橫向分布計(jì)算 ................................................................... 80 荷載組合 ........................................................................................... 81 VI 墩柱截面配筋計(jì)算和應(yīng)力驗(yàn)算 .................................................................. 82 橋墩頂部底部的外力計(jì)算 ............................................................... 82 截面配筋計(jì)算 ................................................................................... 82 第 8 章 鉆孔灌注樁計(jì)算 ........................................................................................... 85 鉆孔灌注樁的 荷載計(jì)算 .............................................................................. 85 灌 注樁恒載計(jì)算 ............................................................................... 85 灌注樁可變荷載計(jì)算 ....................................................................... 85 灌注樁樁長(zhǎng)計(jì)算 ............................................................................... 86 灌注 樁的內(nèi)力計(jì)算 ...................................................................................... 86 樁身截面的配筋和承載力驗(yàn)算 .................................................................. 88 樁頂?shù)目v向水平位移驗(yàn)算 .......................................................................... 90 第 9 章 結(jié)論 ............................................................................................................... 92 參考文獻(xiàn) ..................................................................................................................... 93 致 謝 ..................................................................................................................... 94 沈陽(yáng)工業(yè)大學(xué)本科生畢業(yè)設(shè)計(jì) 1 第 1章 橋梁的設(shè)計(jì)概況 方案比選 （ 1）首選方案，預(yù)應(yīng)力空心板梁橋，圖 11 所示空心板橋的立面圖，圖 12所示空心板橋的橫截面圖。本橋的預(yù)應(yīng)力空心板配筋采用部分預(yù)應(yīng)力 A 類截面設(shè)計(jì)，用先張法施工對(duì)橋面施工，選用預(yù)應(yīng)力鋼筋， 1 7 鋼絞線，其直徑為 ，其余部分普通鋼筋采用 HRB235 或 R235。I 熊兔大橋設(shè)計(jì) Xiongtu Bridge Design 學(xué) 院：建筑與土木工程學(xué)院 專 業(yè) 班 級(jí)：土木工程 1105 學(xué) 號(hào)： 110801515 學(xué) 生 姓 名：曹海峰 指 導(dǎo) 教 師：于賀 （講師） 2020年 06月 II 摘 要 本課題的設(shè)計(jì)為預(yù)應(yīng)力空心板梁橋設(shè)計(jì)名為 熊兔大橋：橋長(zhǎng) 60m，跨度 米，橋面寬 10m，包括 （人行道） 2 + 2（車道）。橋梁車道為兩車道，設(shè)計(jì)荷載是公路 II 級(jí)。 關(guān)鍵詞：預(yù)應(yīng)力 : 荷載 :先張法 III Abstracts This graduation project topic is prestressed concrete hollow slab bridge, it called Xiongtu Bridge. The bridge is 60 meters in length, arranged 6 cross per meters, the w