Stability Control of Y-Shaped Tower Column Double Cable-Faced Low Tower Cable-Stayed Bridge in the Construction Phase
Long span,long cantilever,and high height bridges have the mechanical characteristics of instability and damage during construction.Stability issues similar to bridges are important topics in bridge design and construction.It is necessary to conduct stability analysis to identify the critical construction stage and buckling forms after instability,and then take measures to ensure the stability of the bridge structure.This article focuses on the structure of the Huoxianggou Extra Large Bridge(98+2×180+98)m four span three tower low tower cable-stayed bridge.Through precise numerical calculations and theoretical discussions,the first and second class stability problems during its construction process are analyzed,and targeted stability measures are formulated to add auxiliary cables to ensure safety during the construction process.The research conclusion shows that even when considering complex situations with different initial deviations,by adding stable cables at the top of the lower tower columns,the first and second class stability coefficients of the bridge during the construction stage can meet the requirements of the specifications,demonstrating good structural stability,and providing valuable practical experience and technical reference for similar projects.
NETL
NSTL
万方数据
