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    土木工程桥梁毕业设计摘要

    资料分类:土木工程设计资料 - 论文摘要范文参考资料 | 发布形式:资料共享 | 更新时间:2019-02-15 显示全部楼层

      本次毕业设计的任务是“安徽省九华河大桥设计--上部设计”,采用预应力混凝土箱型梁桥。主要的设计内容包括主梁尺寸拟定、主梁内力计算、荷载内力计算、预应力钢筋以及非预应力钢筋设计、行车道板配筋设计和附属结构设计。
      根据九华河所在地区气候、地质、水文地质条件以及地层条件,拟定三种方案,在三种主梁方案中(预应力混凝土简支箱型梁桥、预应力混凝土悬臂梁桥、连续刚构桥)选取预应力混凝土简支箱型梁桥,箱型梁桥具有结构简单、受力明确、节省材料等优点。公路二级,荷载等级二级,设计车速80km/h,主梁跨径30m,共七跨,桥梁全长210m。
      在计算主梁端部和跨中横向分布系数分别采用了杠杆法和铰接板法,在指导老师指导下,参考相关文献资料和教科书,完成每周设计任务,独立完成毕业设计,并将毕业设计整理为电子稿,利用计算机、CAD绘制相应图纸,以使毕业设计更加具体,更加具有说服力。
      关键词:预应力;箱梁;内力计算;截面特性
      Abstract
      The task of this graduation design is "Anhui Jiuhua river bridge design, the upper part of the design, the design of the main content including the proposed size of main girder, girder internal force calculation, load calculation of internal forces, prestressed and non prestressed reinforcement design, deck slab reinforcement design and attached structure design.
      According to the climate, geology, hydrogeology condition and formation conditions of Jiuhua River, develop three kinds of schemes, in three main scheme (prestressed concrete simply supported box girder bridges, prestressed concrete cantilever beam bridge, continuous rigid frame bridge) selection of prestressed concrete simply supported box girder bridge, box girder bridge with simple structure, force clear, with the advantages of saving materials. Highway two, load level two, design speed 80km/h, the main beam span 30m, a total of seven spans, the bridge length 210m.
      In the calculation of the end part of the main beam and cross in the transverse distribution coefficient were used to lever method and articulated slab method, in under the guidance of the teacher's guidance, reference the relevant literature and textbooks, complete weekly design task, independently completed the graduation design, and will graduate design arrangement for the electronic release, the use of computer, CAD drawing the corresponding drawings, to make it to graduation design more specific, more persuasive.
      Key words: prestressing force;box girder;Section Property;Calculation of internal force

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