河北联合大学轻工学院COLLEGE OF LIGHT INDUSTRY, HEBEI UNITED UNIVERSITY毕业设计说明书英语翻译设计（论文）题目：跨衡昆国道主干线庄田村段 预应力混凝土T型梁桥设计学生姓名： 学 号： 2007 专业班级： 07土木 学 部： 工程教育 指导教师： 2011年06月10日Along with the development of our society and progress and the living standard of the peoples increasing, the transportation convenience degree and safety got peoples extensive concern, bridge modern traffic is the indispensable constituent, at the same time, the construction of bridge got rapid development in our country, whether in the bridge engineering construction scale, or in science and technology level, are already among the most advanced countries in the world. In the highway route is already open to traffic is a ferry, highway Bridges and reconstruction of needs with socialist industry, agriculture, national defence and science and technology step by step, also to realize the modernization of the urgent need to build many roads, railways and Bridges, here we the bridge engineering personnel will continue to face all kinds of design and construction of Bridges of arduous task.Prestressed concrete beam bridge is our country road is widely used and has a long history of a kind of bridge structure type, shape it grandiose, and durable. In recent years, arch bridge, cable-stayed bridge, such as suspension bridge built in China, but a bridge for quite a long time is not provide lots of steel to build roads and Bridges, the prestressed reinforced concrete simply-supported beam bridge high strength steel, T without crossing ability is bigger, lower cost characteristic, accords with current situation.A, project survey and alternative schemes(a) this This design for flat lock the highway is a main highway GZ75 (hengyang nanning to kunming to highway) is located in yunnan province domestic ROM village to kunming. The important paragraph highway It way wenshan honghe river, two ground state, to the far, smiling are mountain etc, guangxi province, city and county east even south by national frontier ports that hair, estuary, the bow, west meets the national highway GZ40 and main national highway 326, national highway 323 line, line in the service of yunnan, east yunnan, yunnan south, southeast yunnan wide region, is the yunnan province out the main channel, edge haitong in yunnan province in southwestern and economic development plays a very important role. Route is located in southeastern yunnan, is located in longitude 102 and to 103 20 23, 24 north latitude 50 15 to 25 02 28 between. This design sections for flat highway 11 contract section lock ZhuangTian section, belong to change local road 1. This bridge is mainly used to connect panzhihua village HeZhuang TianCun.(2) project survey 1. The topographyYunnan flat lock highway route starting point is located in wenshan zhuang and miao minority autonomous prefecture inkstone mountain county town, check point the flat in honghe mile county friends of general town. Administrative districts including the state, by honghe.This route area in the south of yunnan yunnan-guizhou plateau, southeast yunnan basin plateau in the highlands and, according to landform causes can be divided into three small unit of the landscape. This project is located in the third geomorphic units, namely: in K124 + 100 to K128 + 200 period, this area to surface water and ground water strong dissolition, mainland stagnant water accumulation and surface erosion accumulation effect is given priority to, river presents the dissolution of the basin filling broken landform features. 2. Water systemYunnan flat lock highway route nanpanjiang river system, the area of surface water main have green pool, nanpanjiang river, setting him. Green river, pond he are setting a tributary of the essay. According to the survey compiled nanpanjiang river flood of standing material, Yangtze river street near the station 1954 to 1969 the flow data and friends! Stand at the seven largest flow material, nanpan peak flow of 5410 m3 / SEC (1910), the most is 21.1 m3 / SEC flow (1963), another of the hydrological data according to calculation, nanpanjiang bridge is located in 1/100 of the flood water level elevation of 1012 meters, 1/300 of the flood water level elevation of 1014 meters. Setting a maximum peak flow of him 640 m3 / SEC (1915), the most is 0.30 m3 / SEC flow (1958). 3. ClimateYunnan flat lock highway route east longitude 102 in the region to 103 43 20, 24 latitude 50 to 25 02 between, main subtropical monsoon climate plateau. Dry seasons, the wet summer hot and humid, and little rain dry. Climate change significantly with altitude, with vertical zoning characteristics. For K94 for rock (+ 000) to check points (ZhuangTian section) for, at an altitude of 1000 to 1300 meters river valley and basin area, the average temperature of 19.2 C C, the highest te