【正文】 2.................................................................................................................2.........................................................................................................2.................................................................................................................2..............................................................................................32. 橋梁的設(shè)計(jì)資料及構(gòu)造布置.....................................................................................6..................................................................................................................6..................................................................................................73. 主梁截面幾何特征初步計(jì)算.....................................................................................9‘的計(jì)算...............................................................................9......................................................................................9.........................................................................................114. 主梁的內(nèi)力計(jì)算.......................................................................................................12........................................................................................................12................................................................................16................................................................................................25................................................................................................315. 預(yù)應(yīng)力鋼筋面積的估算及其布置...........................................................................34........................................................................................34....................................................................................................34....................................................................386. 主梁截面積和特征計(jì)算...........................................................................................387. 持久狀況截面承載能力極限狀態(tài)的計(jì)算...............................................................43................................................................................................43................................................................................................438. 預(yù)應(yīng)力損失估算.......................................................................................................45....................................................................................45........................................................................................459. 主梁短暫狀況的應(yīng)力驗(yàn)算.......................................................................................5210. 主梁持久狀況的應(yīng)力驗(yàn)算.....................................................................................52......................................................................53..............................................................53......................................................................5311. 主梁抗裂性驗(yàn)算.....................................................................................................58...............................................58...............................................5812. 主梁變形（撓度）計(jì)算............................................................................................61..................................................................61..................................................................................62......................................................................................................6213. 主梁錨固區(qū)的局部承壓驗(yàn)算.................................................................................63..............................................................................63..........................................................................................6414. 橋梁的行車道板內(nèi)力計(jì)算及配筋.........................................................................65..............................................................................65......................................................................................66..................................................................................66..............................................................................6715. 橫隔梁的內(nèi)力計(jì)算及配筋.....................................................................................69..........................................................................................69..........................................................................................72......................................................................................7216. 支座的設(shè)計(jì)與計(jì)算.................................................................................................74..........................................................................................74..................................................................................................75......................................................................................................76..........................................................................................77結(jié)論..............................................................................................................................78參考文獻(xiàn)......................................................................................................................79致謝..............................................................................................................................80前言 畢業(yè)設(shè)計(jì)是學(xué)校專業(yè)教學(xué)過(guò)程的最后的一個(gè)環(huán)節(jié)，它的主要目的是培養(yǎng)我們學(xué)生綜合運(yùn)用所學(xué)專業(yè)知識(shí)的技能。近現(xiàn)代以來(lái)，預(yù)應(yīng)力混凝土橋在我國(guó)得到了巨大的發(fā)展。本次畢業(yè)設(shè)計(jì)就是對(duì)一座中型預(yù)應(yīng)力混凝土簡(jiǎn)支T形梁橋上部結(jié)構(gòu)的設(shè)計(jì)及計(jì)算。橫隔梁的內(nèi)力計(jì)算采用偏心壓力法，在設(shè)計(jì)設(shè)計(jì)時(shí)，偏于安全地采用橫隔梁的設(shè)計(jì)來(lái)代表所有其他橫隔梁的設(shè)計(jì)，只求出了橫隔梁的剪力和彎矩進(jìn)行配筋和強(qiáng)度驗(yàn)算。1. 橋型方案比選該橋建造于低山丘陵地區(qū)，橋位位于軸線近南北向的太陽(yáng)村背斜東翼，橋梁凈寬20m，中間分隔帶1m。（4）車輛荷載標(biāo)準(zhǔn)：公路工級(jí)；（5）橋上縱坡；%（6）設(shè)計(jì)抗震裂度：六級(jí)；