小半径预应力混凝土弯梁桥设计

Design of Curved Beam Bridge of Sharp Radius Prestressed Concrete

随着高速公路的兴建,城市建设的进一步发展,道路网中大型立交桥日益增多,为了增添城市景观、使桥梁服从路线的平面布置和提高交通枢纽的使用功能,平面曲线桥梁的使用日益增多,曲线梁桥的设计和理论研究也在不断取得成果。笔者结合京福线三明段际口互通立交匝道曲线连续梁桥的实际工程设计,简要的就小半径预应力混凝土连续弯梁桥在计算理论、受力特点和构造上的处理谈一下体会。

With flourishing building of freeways, further development of urban construction, the large - scale grade separation bridges in road network are becoming more and more. In order to add the landscape for city, to make bridge accord with site plan of route and to enhance service function of communication hub, the using the plane curved bridges is increasing day by day,the design of curved beam bridge and the theoretical research on it are yielding continuously fruits as well. Based on project design of curved continuous beam bridge at Jikou interchange ramp, at San - Ming Section of Jing - Fu Line, the author briefly talks about some personal understandings on computation theory,load - bearing features and structure of continuous curved beam bridge of sharp radius prestressed concrete.