简支T梁35m毕业设计计算书完整版.docx

摘 要本次设计的是倒水河大桥35m后张法预应力混凝土简支T梁桥施工图设计。根据相关技术规范要求，通过设计任务书、开题报告给出的基本数据，设计上部构造形式、横截面相应宽模度、预置高度、边梁悬臂长度、截面尺寸、绘制施工图等。本设计采用的是后张法预应力混凝土的简支T型梁桥，35mT梁的计算跨径是34.0m，梁长34.96m，主梁为变截面T型梁。路基全宽26m，半幅桥梁宽12.5m，两侧采用刚性护栏宽度各0.5m，不设人行道；桥面铺装采用5cm沥青混凝土10cm水泥混凝土；车道数为双向4车道；汽车荷载是公路－Ⅰ级。上部构造形式采用5梁式；梁宽模数为B=2.5m，T梁预制高度为2.0m。具体包括以下几个部分：桥型方案比选，桥型布置，结构各部分尺寸拟定；选取计算结构简图；恒载内力计算；活载内力计算；荷载组合；预应力钢束的估算及其布置；配筋计算；预应力损失计算；截面强度验算；截面应力及变形验算；行车道板的计算；下部结构计算；绘制施工图。使用的工具有：“Auto CAD”绘图软件、“MathType”数学公式编辑器、“桥梁博士”计算软件。关键词：后张法；预应力混凝土；内力计算AbstractThe design of a bridge in Daoshuihe 35m post-tensioned prestressed concrete simply supported T beam bridge structure construction drawing design. According to the relevant technical specifications, through the design plan, opening report gives the basic data, design the form of superstructure, the corresponding cross-section width of Modular, preset height, beam, cantilever length, section size, construction drawingetc. This design uses a post-tensioned priestess’s concrete simply supported T-beam bridge, 35mT calculations span beam is 34.0m, beam length 34.96m, the main beam for the variable cross-section T-beam. Sub grade full width 26m, half of the bridge width 12.5m, on both sides of the width of the rigid barrier 0.5m, with no sidewalks; asphalt concrete pavement 5cm by 10cm cement concrete; Drive number of two-way 4 Drive; car load highway -Ⅰ level. Superstructure forms a 5 beam; beam width modulus B = 2.5m, T precast beam height 2.0m. Specifically include the following components: Bridge scheme selection，bridge layout, structural dimensions of various parts of the development; select the calculation structure diagram; dead load of the internal force calculation; Live Load calculation; load combination; prestressed steel beam and the layout of the estimation; reinforcement calculation; prestress loss calculation; strength calculation section; section stress and deformation of checking; lane board calculations；construction drawing.Use the tools: Auto CAD drawing software, Ma