毕业设计---桥梁上部结构设计

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1、 中文题目：*东兴桥梁上部结构设计 外文题目：DESIGN OF SUPERSTRUCTURE OF DONGXING BRIDGE OF DONGXING TOWNSHIP IN LIAONING PROVINCE I 摘要 根据志欣高速总体规划并满足构筑城市跨江交通网架的需要，本次毕业设计的题目是 *东兴桥梁上部结构设计。依据公路桥涵通用设计规范 JTG D602004和公路钢 筋混凝土及预应力混凝土桥涵设计规范 JTG D622004 ， 通过综合运用所学过的基础理 论及专业知识，独立进行桥梁设计。 首先，根据地形图提出三种桥型比较方案。然后从外观、施工难易程度和造价等多方 面考虑，选定

2、本设计的最优方案,即桥全桥130m，分为5跨，每跨26m，设计荷载为公路 级。 其次，进主梁截面尺寸拟定、截面特性和内力的计算、主梁配筋和强度验算、预应力 钢束的损失估算、行车道板配筋计算及附属设施（人行道、栏杆、泄水管等）的设置。 计算中采用了杠杠法、修正偏心受压法等计算方法，并参照了有关规范与规定进行设 计与校核。 本设计解决了设计中的计算与验算问题，并且绘制了相应的工程设计图纸，根据设计 资料，勘察地质资料，工程图纸和实地情况编制了预算文件和施工方案。 关键词：简支梁桥；预应力；箱型梁；截面特性； II Abstract According to the overall planning

3、 of Zhixin highway and meeting the need of building river-crossing transportation network.The title of this graduation design is Design of superstructure of Dongxing Bridge of Dongxing township in Liaoning Province.On the basis of The Common Specification of Highway Bridge and Culvert JTG D60-2004 a

4、nd Specifications for Design of Reinforced Concrete and Prestressed Concrete Highway Bridges and Culverts JTG D62-2004,we design the bridge independently with the use of the knowledge of basic theory and profession. The first step is to give three types of the bridge according to topograohic map.The

5、n consider the outward appearance,easy of construction,cost and other aspects to choose the best program for this design.At last,coming up with the best program for the design with the full bridge 130m,divided into 5 cross ,each cross-26m and the designed load for the highway is. This design include

6、s the following aspects: draft of prestressed concrete box girde section size, the calculation of cross-section properties and internal forces,the assignment and intensity check of reinforced in the grider, the estimation of prestressing loss and the assigiment of reinforced in the grider of carriageway and the setting of affiliatied facilities etc. The calculation method includes lever,eccentric-pressed method and other calculation methods and it refers to the provisions of relevan