矮腿小倾角V形刚构桥梁设计方法  

Design Method of Low Leg V-shaped Rigid Frame with Small Inclination

作　　者：刘泉 LIU Quan(North China Municipal Engineering Design&Research Institute Co.Ltd.,Tianjin 300381,China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300381

出　　处：《天津建设科技》2023年第4期47-49,共3页Tianjin Construction Science and Technology

摘　　要：针对已定景观方案的矮腿小倾角V形刚构桥梁的设计方案,采用Midas有限元软件建模,计算了初始方案状态,得出桩顶位移不满足规范要求,模拟分析了纵向桩基排数、V形腿刚度、墩身高度对桩顶位移的影响,提出了改变边界条件和改变结构形式的设计方法,对比得出T构加挂梁形式为可行设计方法。In view of design scheme of a low legged and small inclination V-shaped rigid frame bridge with a determined landscape plan,the paper uses Midas modeling software to calculate the initial plan state,and it was found that the pile top displacement did not meet the specification requirements.The paper simulates and analyzes the influence of longitudinal pile foundation rows,V-leg stiffness,and pier body height on the pile top displacement.A design method of changing boundary conditions and structural form was proposed,and it was concluded that the T-structure plus hanging beam form was a feasible design method.

关 键 词：V形刚构 矮腿 小倾角 桥梁设计 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]