摘要
为实现对大跨度悬索式管道桥施工过程中人致振动响应分析,开展下述研究。首先,构建了人致振动数学模型。其次,通过大跨度悬索式管道桥基本情况分析和人致振动荷载参数计算,完成对悬索式管道桥施工阶段参数的分析。再通过单自由度简化振动响应计算、全桥有限元模型时程分析,完成人致振动响应计算。最后,得到大跨度悬索式管道桥临界人数和行人舒适度评价结果。以期为优化大跨度悬索式管道桥跨越能力,对提升地形高差适应能力提供理论数据支撑。
In order to achieve the analysis of human induced vibration response during the construction process of large-span suspension pipeline bridges,the following research was conducted.Firstly,a mathematical model of human induced vibration was constructed.Secondly,through the analysis of the basic situation of the large-span suspension pipeline bridge and the calculation of human-induced vibration load parameters,the analysis of the parameters during the construction phase of the suspension pipeline bridge is completed.By simplifying the vibration response calculation with a single degree of freedom and analyzing the time history of the full bridge finite element model,the human induced vibration response calculation is completed.Finally,the critical number of people and pedestrian comfort evaluation results of the large-span suspension pipeline bridge were obtained.In order to optimize the crossing capacity of large-span suspension pipeline bridges and provide theoretical data support for improving the adaptability to terrain elevation differences.
作者
籍飞
Ji Fei(Anhui Provincial Highway Engineering Construction Supervision Co.,Ltd.,Hefei,China)
出处
《科学技术创新》
2023年第16期157-160,共4页
Scientific and Technological Innovation
关键词
大跨度
管道桥
振动响应
过程
施工
悬索式
large span
pipeline bridge
vibration response
process
construction
suspension type
