1、摘 要 I 立交桥设计 摘 要 连续梁桥是工程上广泛使用的一种桥型,它不但具有可靠的强度,刚度及抗裂性,而且 具有行车舒适平稳,养护工作量小,设计及施工经验成熟的特点。设计一座梁桥必须从桥跨 布设,尺寸拟定,钢束布置以及施工方法等方面综合考虑,还要充分考虑设计参数和环境影 响。本设计是一联五跨连续梁桥，截面形式为单箱双室，纵向变截面；施工方式是满堂支 架整体现浇。该设计首先进行恒载、活载及次内力的计算,在此基础上进行荷载组合,绘制 弯矩和剪力包络图；其次,根据短期效应组合配置预应力钢筋，并进行预应力损失的计算； 最后，对该连续梁桥进行验算，是否满足设计要求。 关键词关键词：设计 连续梁桥 满堂
2、支架 预应力 南京工业大学本科生毕业设计(论文) II Design for Bridge Abstract The continuous beam bridge is a kind of bridge type used widely on the project. It not only has a reliable strength, stiffness and cracking, but also has a smooth journey comfortable, conservation work on the design and construction experience o
3、f the characteristics of maturity. Design a bridge must be laid across from the bridge-laying, the size of the development, steel beam layout and construction methods, but also give full consideration to the design parameters and environmental impact. This is a design for a five-span continuous brid
4、ge, whose cross-section is two-compartment, and changing on the road direction, constructed by pouring on-site on full framing. The first design includes constant load, the live load and the calculation of the internal forces. On the basis of a load combination, we can draw moment and shear envelope map. Next, according to the short-term effect combination disposition prestressed reinforcement, and carries on the loss of prestress the computation. Finally, carries on the checkin
