关 键 词：

大桥 结构设计

资源描述：

下岸大桥结构设计,大桥,结构设计

内容简介：

摘要本设计依据国家行业规范，综合大学四年所学专业知识，对下岸大桥结构进行设计。该设计车速V=120km/h，该桥全长280m，采用8跨等跨的预应力混凝土简支T形梁。设计的内容包括桥型比选、主梁荷载及活载内力计算、配筋及安全验算、桥墩各部分内力计算与配筋、桥台各部分内力计算与配筋。在桥型选择和方案比选时在考虑到满足安全性、经济的因素及美观的要求后选择了简支T形梁。上部结构设计中，主梁尺寸采用了变截面的设计，预应力主梁采用后张法，施工方法采用先预制后吊装的施工方法。下部结构设计中，支座为板式橡胶支座，墩柱为双柱式，桩基为钻孔灌注桩，桥台为框架式肋式埋置式桥台。上、下部结构恒活载内力计算和结构验算时使用计算机辅助计算，保证了计算的效率和精确性，关键词：上部结构设计 ；下部结构设计；预应力；后张法；橡胶支座；双柱式； 钻孔灌注桩；框架式肋式埋置式桥台AbstractThis design according to the national industry standard, comprehensive university four years professional knowledge, for the land bridge structure design. The design speed V = 120 km/h, the bridge span 280 m, with 8 such as span prestressed concrete simply supported t-beam. Design including bridge is selected, the content of the main girder load and live load internal force calculation, reinforcement and safety check, each part of the internal force calculation and reinforcement, the abutment piers each part of the internal force calculation and reinforcement.When the bridge type selection and scheme comparison in considering the meet the requirements of safety, economic factors and beautiful after simply supported T beam. Girder of the upper structure design, the size of the variable cross-section design, USES the post-tensioned prestressed girder, the construction method using prefabricated before hoisting construction method. Infrastructure design, support for plate rubber bearing, double column pier is, for the bored piles, pile foundation for frame type abutment rib embedded abutment. , bottom structure constant live load on the internal force calculation and structural calculation when using computer aided calculation, ensure the efficiency and accuracy of calculation.Key words: the upper structure design; The lower structure design; Prestressed; Post-tensione