摘要
结合《公路钢筋混凝土及预应力混凝土桥涵设计规范》(JTG 3362-2018)中关于桥梁抗倾覆稳定验算要求,以某高速公路互通式立交匝道桥4×25m连续梁桥为例,建立空间有限元计算模型,结合实例验算,分析加固措施的合理性及有效性,可为类似桥梁抗倾覆稳定设计及单支点支撑桥梁加固设计提供参考。
In combination with the requirements of checking calculation on anti-overturning stability in the Design Code of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts(JTG 3362-2018),the spatial finite element calculation model is established by taking the 4×25m continuous girder bridge of a highway interchange ramp bridge as an example.In combination with the checking calculation on the example,the rationality and effectiveness of the reinforcement measures are analyzed,so as to provide reference for the anti-overturning stability design of similar bridges and the reinforcement design of support bridges with single supporting point.
作者
王宇琪
Wang Yuqi(Liaoning Provincial Transportation Planning and Design Institute Co.,Ltd.,Shenyang 110166,China)
出处
《北方交通》
2021年第3期1-4,9,共5页
Northern Communications
关键词
小半径
连续梁桥
抗倾覆稳定性
加固措施
有限元计算
Small radius
Continuous girder bridge
Anti-overturning stability
Reinforcement measures
Finite element calculation
