目录第一部分桥梁设计..............................................................................................................1第一章水文计算...........................................................................................................11.1原始资料..............................................................................................................11.2水文计算..............................................................................................................3第二章方案比选..............................................................................................................62.1方案一：预应力钢筋混凝土简支梁（锥型锚具）...........................................62.2方案二：钢筋混凝土箱形拱桥...........................................................................10第三章总体布置及主梁的设计.......................................................................................113.1设计资料及构造布置...........................................................................................113.2主梁内力计算.......................................................................................................12第四章预应力钢束的估算及其布置...........................................................................214.1跨中截面钢束的估算与确定...............................................................................214.2钢束预应力损失计算...........................................................................................254.3截面强度验算.......................................................................................................284.4预加内力计算.......................................................................................................344.5主梁斜截面验算...................................................................................................354.6截面应力验算.......................................................................................................414.7主梁端部的局部承压验算...................................................................................46第五章下部结构的计算...............................................................................................505.1盖梁的计算...........................................................................................................505.2桥墩墩柱计算.......................................................................................................575.3钻孔灌注桩的设计计算.......................................................................................59第二部分英文翻译..................................................................................................................62Reliabilityanalysis:......................................................................................................................62可靠性分析...............................................................................................73结束语...........................................................................................................错误！未定义书签。第一部分桥梁设计第一章水文计算1.1原始资料1.1.1水文资料：浑河发源于辽宁省新宾县的滚马苓，从东向西流过沈阳后，折向西南，至海城市三岔河与太子河相汇，而后汇入辽河。浑河干流长364公里，流域面积11085平方公里。本桥位上游45公里的大伙房水库，于1958年建成，该水库控制汇流面积55...
