下载后可任意编辑大学土木工程桥梁结构毕业设计12024 年 5 月 29 日摘要预应力混凝土简支 T 字形梁桥由于外形简单、构造方便,当前在桥梁公路工程中应用广泛。本次毕业设计中,确定简支梁桥方案后,就其进行了结构设计。设计的主要内容有:拟定截面尺寸;计算截面内力及其相应的组合值;估算预应力钢筋的数量并对其进行布置;计算预应力损失值;主梁截面承载力与应力验算;主梁端部的局部承压验算;主梁变形验算;横隔梁计算;行车道板的计算; 关键词:预应力;T 形梁;简支梁桥;横隔梁;行车道板 下载后可任意编辑ABSTRACTPretested concrete T shaped girder bridges are of many advantages. They have simple outlines and can be fabricated easily. Because of these advantages the PC T shaped girder bridge are now widely applied in highway bridge projects. In the process of the design method of the paper. Post tensioning pretested concrete T shaped girder is chosen as the main girder of the bridge.After the confirmation of the type of the bridge, the design of the structure is done, including confirming the size of cross section, calculating the design force of restraining sections and combining them according to the criterion , estimating the amount of pretested steels and arranging them, calculating the geometrical traits of cross sections of girder calculating the loss of presses, checking the carrying capacity of cross sections and so on.Keywords: Prestressed;T-shaped girder;Diaphragms;Simply 22024 年 5 月 29 日下载后可任意编辑supported beam bridge;目录摘要..................................................2ABSTRACT..............................................31．前 言.............................................71.1 预应力混凝土 T 型简支梁的特点及讨论意义.........72．设计资料及构造布置.................................82.1 桥梁跨径及桥宽..................................82.2 设计荷载........................................82.3 材料及工艺.................................
