上下净高受限的立交桥梁设计  

Design of overpass bridge with limited upper and lower net height

作　　者：牛东强 NIU Dong-qiang(The Communicationgs Planning Surveying and Designing Institute of Shanxi Province,Shanxi Taiyuan 030006 China)

机构地区：[1]山西省交通规划勘察设计院有限公司,山西太原030006

出　　处：《山东交通科技》2019年第6期95-97,共3页

摘　　要：由于受既有铁路桥梁影响,桥梁设计的桥位较低,通过合理的水文计算以及采取一系列的处治及保护设计后,有效降低了设计洪水位,保证了梁体在洪水情况下的稳定性,同时避免了因建桥导致的阻水增大对铁路桥墩的冲刷影响。Due to the effect of existing railway bridge,the bridge location is low,after reasonable hydrological calculation and a series of treatment and protection design,the design flood level is effectively reduced,It ensures the stability of the beam under flood conditions,At the same time,the influence of the increase of water resistance caused by the construction of the bridge on the scour of railway piers is avoided.

关 键 词：上下净高受限 桥型选择 设计洪水位 保护措施 

分 类 号：U412.366[交通运输工程—道路与铁道工程]