道路桥梁毕业设计

摘要

根据设计任务书提供的设计资料和设计要求以及部颁标准和规范，对泰和至凤凰二级公路综合设计K0+000～K5+495.719段进行了路基路面综合设计，设计车速为60km/h，双向两车道。

主要内容包括：路线平面设计、路线纵断面设计、路基横断面设计、路基路面排水设计、路面结构设计、小桥设计等。在平面设计中，考虑到是平原微丘区新建二级公路，在设计线路上选了五个交点，曲线半径分别为800m,400m,700m,700m,400m对平面交点进行了校核。在纵断面设计中，全线共设六个变坡点，竖曲线半径分别为36000m，2000m，5000m，4200m，18000m并且进行了竖曲线要素计算。在横断面设计中，在圆曲线半径小于不设超高的最小半径（1500m）的平曲线处还进行了超高的计算,进行了土石方计算和调配。在排水设计中，选择一公里典型路段，设置了截水沟、排水沟，并且在高路堤处设置为散排水形式。在小桥涵设计中，设计内容是一座跨径为12m的装配式钢筋混凝土空心简支板桥，主要进行了桥梁上部结构的计算、配筋和验算，包括主梁计算橡胶支座计算。

本次毕业设计是一个总结也是一个锻炼，通过设计，在专业知识方面得到了综合训练和提高，增强了独立分析和解决问题的能力，掌握了利用理论知识解决实际问题的方法，取得了很好的效果，为以后的工作奠定了一个良好的基础。

关键词：二级公路；路线；路面；桥梁；综合设计

Abstract

According to the design data and design requirements provided with the design plan descriptions and Care standards and norms, Taihe to Fenhuang Town second-class highwayK0+000 ~ K5+495.719section on the roadbed comprehensive design. The designed vehicle speed is 60km/h, two-way two lanes.

The main contents are route graphic design, longitudinal design route, route cross-sectional design, pavement structure design, roadbed drainage design，bridge design, etc.In graphic design, considering it is the high level of roads in the plain area, the circuit on the four intersection curve radius, respectively for 800m,400m,700m,700m,400m checks the intersection of the plane. In the design of all cubes, consists of five changing slope point, vertical curve respectively for 36000m，radius of 2000m，5000m，4200m，18000mand the curve elements calculation. In the cross-sectional design, in circular curve radius, less than the minimum radius which do not set high in the flat curve (1500 m) was the ultra high calculation, the earthwork calculation and allocate. In the drainage design, the choice of a typical sections, set the km cut ditch, drainage, and high embankment in a setting for drainage form scattered. In the small bridge design, design content is a span of 12m of thePrefabricated reinforced concrete simply supported hollow slab bridge, the main bridge of the upper structure

calculation, reinforcement and checking, including the main girder calculation and carriageway calculation.

The graduation design is a summary also an exercise, through the design in the professional knowledge, we improve the comprehensive training got, enhance the independent analysis and the ability to solve problems, and master the use of theoretical knowledge of methods to solve practical problems, and good results have been achieved, laid a good foundation for the later work.

Key words :Second class road; Line; Pavement; Bridge; Comprehensive desig