谈城市立交桥梁局部加宽设计

摘要

结合某城市立交桥局部加宽设计实例,阐述了该工程桥梁加宽的设计方案,介绍了桥梁的跨径布置及加宽连接方式,通过分析不均匀沉降对加宽桥的影响,提出了减少基础沉降的措施,为同类条件下桥梁的加宽设计提供了参考.%Combining with local widening design example of the urban overpass bridge,the paper describes the bridge widening design scheme, and introduces the bridge span-diameter setting and widening connection method. Through analyzing the impact of uneven subsidence upon wide-ning bridge,it puts forward measures of reducing foundation subsidence,which has provided some guidance for similar bridge widening design.