Key Technical Points in the Design of a Large Span Arched Pipe Bridge Structure
LEI Pan
Abstract：In the construction practice of long-distance water diversion projects in the southwestern mountainous areas,combined with construction technology,the structural design of the main arch ring of the large span pipe bridge structure composed of penstocks and arched bridges,as well as the layout of the arch buildings,were studied.The problem of deformation coordination between the lower structure and the arch steel penstocks was well solved.For the first time,the cantilever cast-in-place construction technology was applied to a super large span arched pipe bridge with a span of 180 m.After the pipe bridge was built,it showed excellent mechanical deformation performance in the water filling test process,which can provide reference for the design of similar arched pipe bridge structures.
Keywords：arched pipe bridgesuper large spancantilever castingsteel penstocksdeformation coordination
Publication Date：2026-03-20
Online Publishing Date：2026-09-16(First online date of this platform, not the publication date of the document)
Pages：6( 119-123,139 )