2、。 关键词：预应力空心板，双柱式桥墩，施工组织abricated simply supported prestressed concrete slab bridgeABSTRACT The design of the bridge crossing T River includes computation and drawings. Computational part is divided into alternative program selection, the calculation of the superstructure, the c
3、alculation of substructure and a part of construction management plan. Drawing part consist of three views of alternative program selection, the superstructure’s structural map, the substructure’s structural map and the overall layout of the bridge. The length of T River Bridge is
4、 140m, with 7-span of 20m standard-span prestressed hollow slab. The superstructure is a form of continuous deck but simply supported system with prestressed fabricated hollow slab. The layout of cross-sectional of the bridge across the board is separated standard two-way four-lane h
5、ighway. This article will just design half frame of it. Its width is 11.25m, and consists of two sides board and six internal board, the width sides board is 1.25 m, and the width of internal board is 1.88m. The substructure selects two-column pier and the rigid spreaded foundation.
6、 Keywords：prestressed hollow slab, two-column pier, the construction management plan第一章、文献综述31.1、引言31.2、桥梁类型及发展趋势41.2.1梁式桥41.2.2钢筋混凝土拱桥51.2.3斜拉桥51.2.4悬索桥71.3、结论8第二章、方案的比选102.1．比选方案的主要标准：102.2．方案类别102.3．方案比选11第三章预应力空心板上部结构计算113.1、设计资料113.1.1、设计标准113.1.2、主要材料123.2、构造形式及尺寸选定123.3、空心
