适用于大中口径给水管道的梯形断面桁架管桥设计与分析  

Analysis and Design of the Truss Pipe Bridge with Trapezoid Section Suitable for Medium-large Sized Pipe

作　　者：岑文祥 

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,200092

出　　处：《特种结构》2018年第1期77-79,共3页Special Structures

摘　　要：随着新型城镇化建设的发展,给水工程输配水管线的规模与范围不断增大,越来越多需要跨越河流。选择经济、可靠的管线架空跨越方式是设计中重点考虑的问题。结合具体工程,针对大中口径给水管道跨越中等跨度河流(60m跨),通过结构选型,确定桁架管桥结构形式,从结构受力角度对该形式断面进行设计优化与分析,实践表明大中口径给水管道跨越中等跨度河流(30m以上)时采用梯形断面桁架管桥架空跨越方式可以取得良好的工程与经济效果。The scale and range of water supply pipeline is increasing constantly with the development of new urbanization construction.The pipeline spanning the river becomes more and more.The choice of reliable and economical spanning way is an important question needs to be considered in pipe design.Combined with an medium-large sized water pipe spanning construction（60 m span river）,the structure style of truss bridge was determined by structural form selection.And the truss pipe bridge form section was optimized by structure selection and numerical simulation.The project practice result showed that the trapezoid section truss pipe bridge spanning used in the medium-large sized water pipe spanning construction（above 30 m span） obtains a good engineering and economic effect.

关 键 词：桁架管桥 大中口径给水管道 中等跨度 梯形断面 

分 类 号：TU991[建筑科学—市政工程]