摘要
为推动内肋增强聚乙烯螺旋波纹管在地震带区域的建筑和基础设施中的应用并为其提供抗震评估依据,文中采用有限元仿真分析方法,分析了内肋增强聚乙烯螺旋波纹管的抗震性能。从管道和土体特征入手,建立了土-管动力本构有限元模型,选取了合适的地震波进行时程分析,并考虑了土体与管道的相互作用。时程分析结果显示,在9度地震设防烈度下,600 mm直径、埋深4 m的管道在各个方向上的应力和变形均较小,最大应力远低于材料的应力标准值,表明管道具有足够的抗震性能。
In order to promote the application of inner ribbed reinforced polyethylene spiral bellows in buildings and infrastructures in seismic zone and to provide the basis for seismic evaluation,the finite element simulation analysis method was adopted in this paper,the seismic performance of inner rib reinforced polyethylene spiral bellows was analyzed.Based on the characteristics of pipeline and soil,the soil-pipe dynamic constitutive finite element model was established,and the proper seismic wave was selected for time history analysis,the interaction between soil and pipeline was also considered.The time history analysis results show that the stress and deformation of pipeline with 600 mm diameter and 4 m buried depth are small in all directions,and the maximum stress is far lower than the stress standard value of material under 9 degree earthquake fortification intensity,it shows that the pipeline has sufficient seismic performance.
作者
揭琳锋
曹能健
施培宏
JIE Linfeng;CAO Nengjian;SHI Peihong(Yangzhou Polytechnic Institute;Shanghai Ruihuang Pipe Technology Co.,Ltd.)
出处
《管道技术与设备》
CAS
2024年第5期48-52,共5页
Pipeline Technique and Equipment
关键词
内肋增强
聚乙烯螺旋波纹管
排水管道
抗震性能
地震波
有限元分析
应力分析
inner rib reinforcement
polyethylene spiral corrugated pipe
drainage pipe
seismic performance
seismic wave
finite element analysis
stress analysis
