Analysis of the Static Wind Response of Continuous Rigid Frame Bridge with Pier Swivel Construction Crossing Existing Railway
With the expansion of domestic infrastructure and transportation networks,swivel construction ensures compatibility between new bridges and existing lines.Yet,long-span bridges crossing existing routes,characterized by high piers and heavy loads,are vul-nerable to wind effects.focusing on a rigid frame bridge.Taking the Dashucun Longchuan River Third-line Bridge as the research subject,employing numerical simulations including finite element analysis and computational fluid dynamics,we model the swivel su-perstructure and calculate aerodynamic coefficients.Through simulations under static and dynamic wind loads,the most unfavorable load conditions are identified.Modal analysis of pre and post-swivel states pinpoints critical construction stages.The study offers a scientific foundation and technical guidance for wind-resistant design of swivel girder bridges.
万方数据
维普
