某桥梁毕业设计

1、摘要南骨干航道网整治工程”的组成部分，配合珥陵镇市镇道路改建工程进行建设。道路等级为城市主干路级；通航要求为级航道。本桥址的桥型方案设计主要考虑通航的要求。根据专业知识和查阅参考资梁桥作为推荐设计方案并对此方案进行了详细的设计。截面，梁高 2.5 ，翼缘宽 19m，底板宽 12 ，腹板厚 0.35 ，主跨跨径 50 ，混凝土采用 C50，预应力钢束采用后张法张拉。力，根据结果设计出行车道板所需的钢筋数量。在计算主梁恒载和活载内力时，进行内力组合，绘出全桥不同横截面的内力图。算。进行下部结构计算时：先根据计算出的上部结构内力的大小选择支座的类验算以及地基承载力验算。里所学的知识系统的串联了起来，

2、运用所学的知识解决了现实生活中的实际问提高。关键词:连续梁、内力、截面、预应力、影响线、桩基础IABSTRACTThe large bridge of East Red locates the Ling er town of Dan yang city in Jiangsu Province, surmounts the Dan gold canal. It is the Jiang su Province transportdepartment of the southern of Jiang su backbone route net renovates the project theco

3、nstituent, the coordinate mausoleum town path rebuilds the project to carry on theconstruction. The rank of path is the city host II level; the request of open tonavigation is V level of routes.The design of bridge site major consideration navigable clearancerequirements .Then according to the speci

4、alized knowledge and the consult reference,it has formulated three plans: The prestressed concrete continuous bridge; thepre-stressed consecution bridge and the center receive type arched bridge. Throughthe plan comparison, choosing the prestressed concrete continuous bridge as therecommendation des

5、ign proposal and have carried on the further design regarding.The prestressed continuous beam bridge includes the superstructure、thesubstructure、the bearing and the accessory. The main beam is box beam and 2.5meters in height, 19 meters in tope width and 12 meters in bottle width. The web is0.35 met

6、ers in width and detailed scales can get from the paper. The main beamcomputed span is 50 meters. The concrete mark is C50. The Construction method ofhigh tensile wire stranded steel is post-tensioning methods.When superstructure computation, first of all, according to the category of roadsand the v

7、ehicles Loa, the king post upper limb board the endogen force has beencalculated, the design goes on a journey the steel bar quantity which the traffic laneboard needs. When computation king post permanent load and variable load endogenforce, first of all I unit the king post division, then calculat

8、es in this foundation withthe finite element procedure the superstructure under the dead load function endogenforce, the displacement and the endogen force influence line. Increase in endogenforce influence on-line calculates the live load endogen force and carries on theendogen force combination, d

9、raws the entire bridge different lateral sectioning to tryhard. According to the above computed result, the prestressed reinforcement of theentire bridge has been arrangement. The computation loss of prestressed and thepre-stressed cause the inferiorendogenic force,the second endogen force has beenc

10、ombination again, final section it intensity.Choosing the support according to the superstructure endogen force size the type,again uses the rib type according to the bridge site geology situation; Using two pillartype of the bridge pier. The foundation uses the drill hole to pour into the pile and

11、thedefinite detail size. Finally, having carried on the substructure stability as well as theground supporting capacity.In this short more than three months graduation project time, I learn a lot ofknowledge. First I utilize the knowledge system which I studied at university in fouryears, then I used the knowledge to solve the actual problem in real life; Next Ilearned to design in the project according to the standard request on t