安庆长江公路大桥主桥方案比选  

Comparison and Selection of Main Bridge Scheme of Anqing Changjiang River Highway Bridge

作　　者：汪学著 黄从俊[2] 

机构地区：[1]杭州市城乡建设设计院有限公司,浙江杭州310004 [2]合肥市规划设计研究院,安徽合肥230041

出　　处：《城市道桥与防洪》2010年第9期134-137,共4页Urban Roads Bridges & Flood Control

摘　　要：该文介绍了安庆长江公路大桥主桥的方案构思和方案设计,提出了四种适合该桥建设条件的桥型方案,为选择主桥方案奠定基础。重点对主跨为495～520m范围内的斜拉桥方案的难点及特点进行分析研究,分别为:第一桥型方案,主桥为扁平箱梁断面预应力混凝土斜拉桥;第二桥型方案,主桥为梁板式断面预应力混凝土斜拉桥;第三桥型方案,主桥为全焊扁平流线形封闭钢箱梁斜拉桥;第四桥型方案,主桥采用五跨叠合梁斜拉桥。经过充分比较和论证后,最终确定主跨为510m全焊扁平流线形封闭钢箱梁斜拉桥。This paper introduces the scheme conception and the scheme design of the main bridge for Anqing Changjiang River Highway Bridge,and puts forward four bridge schemes suitable for the construction condition of this bridge so as to establish the basis for selecting the scheme of the main bridge.The paper focuses analysis and study on the difficulty and characteristic of the cable-stayed bridge scheme for the main bridge within the range of 495~520 m.The first bridge scheme is the pre-stressed concrete cable-stayed bridge with flat box girder cross-section for the main bridge,the second scheme is the pre-stressed concrete cable-stayed bridge with beam-slab cross-section for the main bridge,the third scheme is the full welded flat streamlined closed steel box beam cable-stayed bridge for the main bridge,and the fourth scheme is the 5-span composite beam cable-stayed bridge for the main bridge.After the full comparison and demonstration,the main bridge is 510-m full-welded flat streamlined closed steel box beam cable-stayed bridge is finally determined.

关 键 词：安庆长江公路大桥 斜拉桥 方案设计 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]