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    混凝土简支T梁桥设计摘要范文

    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:2021-11-26 显示全部楼层

      摘        要
      本次设计的题目是双向两车道三跨(标跨10m)混凝土简支T梁桥设计。
      本设计采用预应力混凝土T型梁桥,跨径布置为(10)m,主梁为变截面T型梁。跨中梁高为1.33m,支点梁高为1.33m。桥墩为重力式桥墩、桥台。
      本文主要阐述了该桥的设计和计算过程。首先进行桥型方案比选,对主桥进行总体结构设计,然后对上部结构进行内力、配筋计算,再进行强度、应力及变形验算,最后进行下部结构验算。
      具体包括以下几个部分:
      1.  桥型方案比选;
      2.  桥型布置,结构各部分尺寸拟定;
      3.  选取计算结构简图;
      4.  恒载内力计算;
      5.  活载内力计算;
      6.  荷载组合;
      7.  配筋计算;
      8.  预应力损失计算;
      9.  截面强度验算;
      10. 截面应力及变形验算;
      11. 下部结构验算。
      关 键 词:预应力混凝土    T型简支梁桥   重力式桥墩  重力式桥台ABSTRACT
      The title of this design is the design of prestressed concrete T-beam bridge of Congjiatun No.1 Bridge.
      The bridge belongs to the prestressed concreted structuer which is a simple supported beam bridge.The span arrangement is (10)m.The superstructure is variable T shaped supported beam bridge.The height of the girder on the support is1.33m,and the height of the middle is 1.33m too.The pier is gravity pier. The abutment is gravity abutment.
      This essay focuses on the design and calculation process of the bridge.Firstly,compare and choose a best scheme from several bridge types;and make an overall structure design of the main span.Secondly perform the calculation of the internal force and reinforcing bar on the superstructure.Thirdly,check the intensity,stress and deflection.Finally,check the substructure..
      The main points of the design are as the follows.
      1.The comparison of several bridge types;2.The arrangement of the bridge types;
      3.The units partition of the structute;
      4.The calculation of the internal force of dead load;5.The calculation of the internal force of movable load;6.The combination of every kind of load;
      7.The arrangement of prestressed reinforcing bar;8.The calculation of the prestressed loss;9.The check of the section intensity;
      10.The check of the section stress and deflection;11.The check the substructure.
      Keywords: Prestressed conctete   T shaped supported beam bridge  Gravity pier  Gravity abutment

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