以下就是土木毕设网为大家精心整理的大桥上部结构设计中英文摘要范文。供大家学习。
本次毕业设计主要是关于大通湖大桥上部结构的设计，益阳资江五桥是益阳市城市外环路上跨越资江的一座连续梁桥，益阳资江五桥经过大量的计算分析，克服了跨径大、结构复杂等设计难题，合理地选取了桥梁构造形式。同时，益阳资江五桥的建设能够提高城市道路的成网性和交通流量与流向的合理性，扩大益阳市资江以北地区骨架，可为城市新增建设用地6 km以上，也为益阳市增加了一道靓丽的风景线。
设计过程中，通过分析桥梁结构在使用过程中的恒载及活载作用，考虑不同的荷载安全系数进行荷载组合，将极限状态的两种内力组合结果作为估算钢束的计算内力。估算出各截面的钢束后，按照一定要求将钢束布置好，重新模拟施工并考虑预应力作用，进行作用的第二次组合，以进行施工及使用过程中的截面强度验算、应力验算及变形验算。各项验算均满足要求且设计合理，则设计通过。为提高设计效率及准确度，设计中我采用桥梁博士软件进行计算，并充分利用了CAD、WORD、EXCELL等办公软件来整理设计文件。
本设计桥梁跨度为40m+40m+40m,采用T形截面，桥面宽10m，分为2车道。采用简支-连续施工方法。
关键词：预应力混凝土连续梁桥；极限状态；简支-连续施工
Abstract
the graduation design is mainly on the Chase Lake bridge upper structure design,Yiyang Zijiang River five bridge is the city of Yiyang city outer ring road crossing on a continuous beam bridge,Yiyang Zijiang River five bridge after a great deal of calculation and analysis,to overcome the large span,complex structure and design problems,the reasonable selection of the bridge structure form.At the same time,Yiyang Zijiang River five bridge construction can improve the city road network and traffic flow and flow direction of rationality,enlarge Yiyang Zijiang River region to the north of the skeleton,for the city of new construction land more than 6 km,Yiyang also added a line of beautiful scenery.
In the design process,through the analysis of the bridge structure used in the process of constant load and live load,considering different load safety factor load combinations,the limit state of two kinds of internal force combination results as the estimation of steel beam internal force calculation.To estimate each cross section of the steel beam,steel beam according to certain requirements of layout,to simulate the construction and prestressing effect,for role of the second combination,for the construction and use of the process of cross section strength calculation,stress calculation and deformation calculation.The design meets the requirements and has reasonable design,design by.In order to improve the design efficiency and accuracy,the design I using bridge doctor software to calculate,and make full use of the CAD,WORD,EXCELL and other office software to organize the design document.
The design of the bridge span is 40m+40m+40m,with T shaped cross section,deck width of 10m,divided into 2 lanes.The simply supported continuous construction method.
Keywords:prestressed concrete continuous beam bridge;limit state;simply supported-continuous construction
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