摘要
本文为研究预制地下管廊内连续管道的纵向抗震性能,在ABAQUS有限元平台构建了地基土-管廊-管道系统的精细化抗震分析模型,分析不同地震波入射角度下管廊-焊接钢管体系的地震响应。研究表明,随着地震波入射角度的增大,廊内焊接钢管的轴力逐渐增大,在入射角60°时达到峰值;剪力峰值随入射角增大呈现出先减小后增大的趋势,在入射角45°时最小,入射角0°时达到峰值;管道的弯矩峰值随地震波入射角增大逐渐减小,在入射角0°时达到峰值。
This paper aims to study the longitudinal seismic performance of continuous pipes in underground precast utility tunnels.A refined finite element model for the seismic analysis of soil-utility-tunnel-pipe system was established,and the seismic responses of straight utility tunnel-welded steel pipe system under different an-gles of seismic wave incidence were studied.It was shown that as the incidence angle of seismic waves increa-ses,the axial force of welded steel pipes gradually increases,reaching its peak at an incidence angle of 60°.The peak shear force shows a trend of first decreasing and then increasing with the increase of incident angle,with the smallest at an incident angle of 45°and the maximum at an incident angle of 0°.The peak bending mo-ment of the pipes gradually decreases with the increase of seismic wave incidence angle,reaching its peak at in-cidence angle of 0°.
作者
王长祥
李东桥
梁建文
黄宇昊
柳晓科
Wang Changxiang;Li Dongqiao;Liang Jianwen;Huang Yuhao;Liu Xiaoke(North China Municipal Engineering Design&Research Institute Co.,Ltd.,Tianjin 300074,China;School of Civil Engineering,Tianjin University,300350,China)
出处
《特种结构》
2024年第1期65-69,共5页
Special Structures
关键词
预制地下管廊
廊内连续管道
土-管廊-管道系统
纵向抗震
Underground precast utility tunnel
Continuous pipes in utility tunnel
Soil-utility tunnel-pipe system
Longitudinal seismic analysis
