A Technical Study on Arch Rib Lifting Construction for Deck-Type Concrete-Filled Steel Tubular(CFST)Arch Bridges
WANG Wei
YUAN Ye
ZHOU Jie
Abstract：Focusing on the arch rib construction of the 170-meter Hongkou Bridge,this study examines the technological distinctions between single-truss lifting and integral lifting methodologies through numerical simulation and comparative cable tension analysis.The findings indicate that:the integral lifting method necessitates high-precision three-dimensional pre-assembly on land,thereby reducing high-altitude operation risks yet increasing load demands on the suspension system;the suspension cable system design must integrate composite factors including slack effects,wind-induced vibrations,uneven load distributions,and dynamic impacts,ensuring a safety factor above 2.5,In order to enhance safety margins;numerical simulations should incorporate environmental variables such as ambient temperature,wind velocity,and cable angle variations.
Keywords：CFST arch bridgehoisting methodcable forcefinite element analysis
Publication Date：2025-06-30
Online Publishing Date：2025-08-26(First online date of this platform, not the publication date of the document)
Pages：5( 8-12 )