预应力混凝土简支T形梁桥毕业设计 (2)

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1、 本科生毕业设计（论文） 摘 要 本设计为凌川大桥的设计 （太原街桥） ， 本次设计的目的是为了缓解市区交通 压力以及推动凌南新区发展而在原西大桥与南桥之间建设一座跨小凌河的大桥。 本设计的主要内容包括水文计算，梁桥上部结构设计计算，下部结构设计计算。 其中水文计算的资料和数据为市水文局提供。通过水文计算设计桥长为 420 米， 经方案的比较认为采用双跨 30 米结构的预应力混凝土简支 T 形梁桥较为合适。 根 据任务书中的要求桥宽 12 米为双向双车道，人行道为 2.52，考虑桥宽， 设计为 6 片主梁，桥墩为钻孔灌注桩，双柱式桥墩，桥面铺装为沥青混凝土，排 水为 2%单向横披。设计计算书主

2、要有主梁内力计算，预应力钢筋的布置和估 算，主梁截面的特性和验算，以及墩台基础和行车道板的设计等。 关键词：凌川大桥；预应力混凝土简支 T 形梁桥；结构设计 本科生毕业设计（论文） Abstract Originally design for the design of Ling Chuan bridge (the bridge of street of Taiyuan), the purpose that design for alleviate urban area traffic pressure and is it insult and south newly developed ar

3、ea development build one step light bridge of Linghe River among original west bridge and south bridge to promote. The main content originally designed includes hydrology to calculate, Liang Qiao calculates in top structural design, the underpart structural design is calculated. Materials and data c

4、alculating in hydrology among them are offered for hydrology office of the city. It is 420 meters to calculate and design the bridge long through hydrology，By to is it adopt pair step 30 prestressing force of structure concrete simple to prop up T comparatively suitable beam bridge to think relative

5、ly scheme. According to the demand in the task book -It is the two-way pair of lanes that the bridge is 12 meters wide, the pavement is 2. 52, consider the bridge is wide , design as 6 slices of girders, the pier pours into one in order to hole, the twin columns type pier, the bridge floor decorates

6、 for the bituminous concrete , drain off water as 2% of the horizontal wall inscriptions. Design and calculate there are the books mainly -Girder internal force calculate, prestressing force reinforcing bar decorate and estimation , girder sectional characteristic and checking computations, and mound TV station foundation and design , runway of board. Keyword: Ling Chuan bridge; The prestressing force concrete supports in the T beam bridge simply; Structural design 本科生毕业设计（论文） 目 录 第一章 概