摘要
以成贵铁路西溪河大桥为背景,通过ANSYS软件建立对应的大跨度上承式钢管混凝土拱桥的模型,通过对不同内倾角下大跨度上承式拱桥的自振特性和地震时程响应分析,得出了随内倾角变化,其自振频率和拱肋关键位置相关内力、位移等因素的变化规律,从而为大跨度上承式钢管混凝土拱桥的研究和应用提供一定的参考。
Taking the Xixi River Bridge of Chengdu-Guizhou Railway as the background,the corresponding model of the largespan deck CFST arch bridge was established through ANSYS software.Through analysis of the natural vibration characteristics and seismic time-history response of the long-span deck arch bridge under different inclination angles,The variation law of the natural vibration frequency and the internal force and displacement related to the key position of the arch rib with the change of inclination angle is obtained,which provides a certain reference for the research and application of large-span deck CFST arch bridge.
出处
《建筑技术开发》
2020年第10期123-124,共2页
Building Technology Development
关键词
钢管混凝土拱桥
内倾角
自振频率
时程响应
CFST arch bridge
inclination angle
natural frequency
time-history response
