郑州大学毕业设计（论文）题目：三跨预应力连续箱梁桥设计（3×30m）指导教师：李清富职称：教授郑元勋职称：讲师学生姓名：郭小帅学号：20070510309专业：水利水电工程（道路桥梁方向）院（系）：水利与环境学院完成时间：2011-5-312011年6月2日目录摘要........................................................................................................................10绪论.......................................................................................................................31设计基本资料.......................................................................................................51.1.工程概况...........................................................................................................................51.2.设计标准...........................................................................................................................51.3.桥梁设计...........................................................................................................................52设计要点及结构尺寸拟定...................................................................................72.1设计要点............................................................................................................................72.2结构尺寸的拟定................................................................................................................83主梁作用效应的计算.........................................................................................113.1自重作用效应的计算.....................................................................................................113.2汽车荷载的效应..............................................................................................................173.3温差应力的计算..............................................................................................................263.4支座沉降的计算..............................................................................................................283.5内力组合..........................................................................................................................284预应力钢筋的估算与布置.................................................................................364.1钢束的估算......................................................................................................................364.2钢束的布置......................................................................................................................374.3主梁净、换算截面几何特性计算..................................................................................385预应力损失及有效预应力计算.........................................................................405.1基本理论.........................................................................................................................405.2预应力损失计算..............................................................................................................406配束后主梁内力计算及内力组合.....................................................................497截面强度验算.....................................................................................................527.1基本理论......................................................................................................................
