土木工程（桥梁）毕业设计计算.pdf

目录
1、桥面高程...................................................................................................................................1
2、方案比选...................................................................................................................................1 2.
1、确定桥梁比选方案.........................................................................................................1 2.
2、确定最优方案.................................................................................................................2 3 主桥结构尺寸拟定......................................................................................................................4 3.
1、跨径拟定.........................................................................................................................4 3.
2、主桥箱梁尺寸拟定.........................................................................................................4 3.2.
1、确定梁高...............................................................................................................4 3.2.
2、确定桥面板厚度...................................................................................................4 3.2.
3、腹板厚度...............................................................................................................5 3.2.
4、底板厚度...............................................................................................................5 3.2.
5、桥梁线形...............................................................................................................5 3.2.
6、桥面铺装...............................................................................................................5 3.6.
7、桥墩尺寸...............................................................................................................5 3.6.
8、主梁箱梁尺寸.......................................................................................................5
4、主桥箱梁横向计算...................................................................................................................7 4.
1、桥面板的配筋计算.........................................................................................................7 4.1.
1、顶板跨中截面计算...............................................................................................7 4.1.
2、主梁箱梁悬臂端计算.........................................................................................12 4.1.
3、荷载组合.............................................................................................................14 4.1.
4、桥面板配筋计算.................................................................................................14 4.1.
5、混凝土抗裂验算.................................................................................................15 4.
3、各截面配筋验算...........................................................................................................17 5.主桥电算....................................................................................................................................20 5.1 电算前的准备工作..........................................................................................................20 5.1.1 材料特性和计算参数............................................................................................20 5.1.2 施工环境和温度模式............................................................................................20 5.1.3 挂篮和临时荷载....................................................................................................20 5.1.4 截面尺寸................................................................................................................20 5.1.4 二期恒载和运营活载............................................................................................21 5.2 建模过程..........................................................................................................................21 5.2.1 设置操作环境.......................................................................................................21 5.2.2 定义材料和截面....................................................................................................21 5.2.3 建立结构模型........................................................................................................25 5.2.4 定义结构组、边界组和荷载组............................................................................28 5.2.5 非预应力钢筋输入................................................................................................31 5.2.6 输入荷载................................................................................................................32 5.2.7 定义施工阶段........................................................................................................37 5.2.8 输入移动荷载数据................................................................................................41 5.2.9 运行结构分析并查看分析结果............................................................................45 5.2.10PSC 设计...............................................................................................................59
目录
1、桥面高程...................................................................................................................................1
2、方案比选...................................................................................................................................1 2.
1、确定桥梁比选方案.........................................................................................................1 2.
2、确定最优方案.................................................................................................................2 3 主桥结构尺寸拟定......................................................................................................................4 3.
1、跨径拟定.........................................................................................................................4 3.
2、主桥箱梁尺寸拟定.........................................................................................................4 3.2.
1、确定梁高...............................................................................................................4 3.2.
2、确定桥面板厚度...................................................................................................4 3.2.
3、腹板厚度...............................................................................................................5 3.2.
4、底板厚度...............................................................................................................5 3.2.
5、桥梁线形...............................................................................................................5 3.2.
6、桥面铺装...............................................................................................................5 3.6.
7、桥墩尺寸...............................................................................................................5 3.6.
8、主梁箱梁尺寸.......................................................................................................5
4、主桥箱梁横向计算...................................................................................................................7 4.
1、桥面板的配筋计算.........................................................................................................