桥梁毕业设计选读.doc

熊兔大桥设计 Xiongtu Bridge Design 学 院：建筑与土木工程学院 专 业 班 级： 学 号： 学 生 姓 名： 指 导 教 师： （讲师） 2015年 06月 摘 要 ×2 + 3.50m×2（车道）。本次设计首先进行方案比选，然后对各位置结构所需要进行设计的荷载进行了计算，及配筋计算和墩柱等设计计算。在计算过程中，对结构内力的结构主要是进行了计算，并且对各位置设计的是否合理进行了验算，充分学习了与桥梁相关的知识。桥梁车道为两车道，设计荷载是公路II级。本桥的预应力空心板配筋采用部分预应力A类截面设计，用先张法施工对桥面施工，选用预应力钢筋，1×7钢绞线，其直径为12.7mm，其余部分普通钢筋采用HRB235或R235。在设计过程中对上部的内力结构可变荷载，恒载及配筋都进行了计算并对其都进行了合理验算。本桥支座由4层钢板和5层橡胶的组成板式橡胶支座，设计部分主要进行支座的偏转及抗滑稳定性的验算，之后我们进行了盖梁，墩柱以及灌注桩的基本设计，内力计算以及合理性验算。 关键词：预应力: 荷载 :先张法 Abstracts This graduation project topic is prestressed concrete hollow slab bridge, it called Xiongtu Bridge. The bridge is 60 meters in length, arranged 6 cross per 10.00 meters, the width of deck is 10 meters, including 1.50 meters（sidewalk）×2+3.50meters×2（carriageway).First,the design is carried out alternatives,then we calculate the position of the load structure,reinforcement calculate,and pier calculate。During the calculate ,we did a lot of computing about internal force,and we were checking each position whether it is reasonable.we also learn much knowledge about bridge.The design is load П grade,and make two lane design.The prestressed hollow reinforcement is class A cross-sectional ,the bridge of construction using the pre-tensioning method and prestressing steel strand is the 1×7 and the diameter is 12.7mm，the ordinary steel choose HRB235 and R235.In the design process,we make the calculate and checking about the upper part of the internal forces’ variable load,dead load and reinforcement.The bridge’s bearing choose the steel plate of four-layer ,the rubber of five-layer makes up the laminated rubber bearing,and we check the bearing the stability against sliding bearing deflection.We make the calculate about capping beam,pier and bored piles of internal force and checking. Key words: prestress :load :pre-tensioning meth 目 录 摘 要 I II 第1章 桥梁的设计概况 1 1.1方案比选..........................................................................................................1 1.2桥梁