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目录
摘 要 ......................................................................................................................................................... 2 前言 ........................................................................................................................................................... 5 第一章 桥型方案比选............................................................................................................................ 6
1.1概述 ............................................................................................................................................. 6 1.2 主要技术指标........................................................................................................................ 6 1.3 桥型方案比较............................................................................................................................ 6 第二章 设计资料和结构尺寸 ................................................................................................................ 9
2.1 设计资料 .................................................................................................................................... 9 1.中华人民国交通部部标准：《公路工程技术标准》（JTG B01-2003） ........................................... 10 7. 玲森：《桥梁工程》，人民交通，1985 ............................................................................................. 10 9. 公路桥涵设计手册：《基本资料》，人民交通，1991 ..................................................................... 10
2.2 结构尺寸 .................................................................................................................................. 10 2.3、毛截面几何特性 ..................................................................................................................... 11 第三章 力计算 ..................................................................................................................................... 12
3.1 恒载作用力计算....................................................................................................................... 12 3.2活载作用力计算........................................................................................................................ 13 第四章 预应力钢筋设计 .................................................................................................................... 22
4.1 预应力钢筋数量的确定及布置 ............................................................................................. 22 4.2 换算截面几何特性计算 ......................................................................................................... 23 4.3 预应力损失计算....................................................................................................................... 24 第五章 截面强度与应力计算 ............................................................................................................ 28
5.1、按极限状态承载能力的计算 ................................................................................................. 28 5.2、正常使用极限状态计算 ......................................................................................................... 29 5.3、持久状况应力验算 ................................................................................................................. 35 5.4、短暂状态应力验算 ................................................................................................................. 38 第六章 墩柱桩设计资料...................................................................................................................... 40 8）. 玲森：《桥梁工程》，人民交通，1985 ......................................................................................... 41 10） 公路桥涵设计手册：《桥梁附属构造与支座》，人民交通，1991 ............................................ 41 12）. 公路桥涵设计手册：《基本资料》，人民交通，1991 ............................................................... 41 第七章 盖梁计算 7.1荷载计算 ........................................................................................................................................... 41
7.2 力计算 .................................................................................................................................... 51 7.3 截面配筋设计及承载力校核 ................................................................................................ 54 第八章 桥墩墩柱计算.......................................................................................................................... 58
8.1荷载计算 ................................................................................................................................... 58 8.2截面配筋计算及应力验算 ........................................................................................................ 60 第九章 钻孔灌注桩计算........................................................................................................................ 63
9.1荷载计算 ................................................................................................................................... 63 9.2 桩长计算 .................................................................................................................................. 65 9.3桩的力计算（m法） ............................................................................................................... 66 9.4桩身截面配筋与强度验算 ........................................................................................................ 69 9.5墩顶纵向水平位移验算 ............................................................................................................ 71
第十章 埋置式桥台计算...................................................................................................................... 73
10.1设计资料 ................................................................................................................................. 73 10.2尺寸拟定 ................................................................................................................................. 73 10.3荷载计算 ................................................................................................................................. 74 10.4荷载组合 ................................................................................................................................. 80 10.5地基承载力验算...................................................................................................................... 80 10.6 基底偏心距验算 ..................................................................................................................... 82 10.7基础稳定性验算...................................................................................................................... 82 结论 ......................................................................................................................................................... 83 总结与体会 ............................................................................................................................................. 84 辞 .......................................................................................................................... 错误!未定义书签。 主要参考文献 ......................................................................................................................................... 86 1.中华人民国交通部部标准：《公路工程技术标准》（JTG B01-2003） ........................................... 86 9. 玲森：《桥梁工程》，人民交通，1985 ............................................................................................. 86 11. 公路桥涵设计手册：《桥梁附属构造与支座》，人民交通，1991 ............................................... 86 13. 公路桥涵设计手册：《基本资料》，人民交通，1991 ................................................................... 86 16、立础、顾安邦：《桥梁工程》（上、下册）人民交通，2004 ...................................................... 86 附录 英文翻译 ........................................................................................................ 错误!未定义书签。
摘 要
本设计根据毕业设计任务书给定的设计资料和地质资料，按照有关规和资料选择2×20m装配式预应力混凝土空心板桥的方案进行设计。桥址区处于构造强烈剥蚀地
貌的斜坡地带，地形起伏较大。本设计对该桥梁进行了完整的上部、下部结构计算、验算和施工图设计。
关键词：预应力混凝土，空心板，桥墩, 桥台 ，计算
Abstract
In the paper,I choose the scheme of 2* 20m assembling type concrete hollow board bridge of prestressing force to design， according to design materials with designated design specifications of graduation and geological materials . The location district of the bridge is in the structure and degrade in the slope area of the ground form strongly , the topography rises and falls relatively largly. the topography rises and falls relatively largly. In the design, I carry on the intact top to bridge this originally , underpart structure calculate , checking computations and designed the constrction drawing.
Keyword: The concrete of prestressing force, hollow board, the pier,the bidge abutment, calculate