1、 毕业设计（论文） 浠水四桥浠水四桥(72+110+72)m(72+110+72)m 连续梁上构施工图设计连续梁上构施工图设计 学院（系） ： 专业班级： 学生姓名： 指导教师： I 摘要 本设计题目是浠水四桥上构施工图设计，桥梁跨径布置为 72+110+72m，双向四车道。 根据设计任务要求，依据现行公路桥梁设计规范,综合考虑桥位的地质、地形条件，经初选 后提出了预应力混凝土连续箱梁桥。施工方式是悬臂施工法和满堂支架现浇。其中设计的 主要内容包括：结构尺寸拟定、主梁内力计算、钢筋面积的估算及钢束布置等等。 利用 Midas 软件进行结构分析，根据桥梁的尺寸建立桥梁基本模型，然后进行内力分 析
2、，进行施工各阶段分析及截面验算。同时，必须要考虑混凝土收缩、徐变次内力和温度 次内力、支座沉降等因素的影响。 在设计过程中，参阅了很多相关设计及规范，也采用了一些既有设计成果，使得设计 具有一定的实践性。设计的重点和要点在于主桥梁桥的模型建立，挂篮施工的施工阶段分 析，以及预应力筋的确定和布置。在模型建立完成之后，需要进行梁截面的相关验算，在 符合规范要求后需要绘制连续梁桥的施工图和各种构件配筋图等。 关键词：连续箱梁；悬臂施工法；Midas II Abstract The design entitled The upper part of the XiShui Bridge structur
3、e construction design, bridge span arrangement for the 72 +110 +72m, two-way four-lane.According to the design task requirements, based on the existing highway bridge design specification, considering the bridge site geological and topographical conditions, after the primaries made of prestressed co
4、ncrete continuous box girder bridges. Construction methods cantilever construction method and Full Support situ. The main contents of design include: the structure size to develop, the main beam internal force calculation, reinforced area of estimation and arrangement of steel beams and so on. Use M
5、idas software for structural analysis, to build bridges basic model according to the size of the bridge, and then the internal force analysis, and cross-sectional analysis of the various stages of construction checking. At the same time, we must consider concrete shrinkage, creep secondary internal
6、force and effect temperature secondary internal forces, support settlements and other factors During the design process, we see a lot of related design and specification, also adopted a number of the existing design results, making the design has a certain practicality. Designed to focus and main point is that the model build bridges Bridge construction phase Cradle construction analysis, and tendons identified and arrangements. After
