温度荷载作用下供水管道应力分布及参数敏感性分析  

Analysis of Stress Distribution and Parameter Sensitivity of Water Supply Pipeline Under Temperature Load

作　　者：郭炀煜 GUO Yang-yu(Central&Southern China Municipal Engineering Design and Research Institute Co.Ltd.,Wuhan 430000,China)

机构地区：[1]中国市政工程中南设计研究总院有限公司,武汉430000

出　　处：《工程建设与设计》2025年第7期121-123,共3页Construction & Design for Engineering

摘　　要：结合实际案例,构建了管土作用下供水管道的有限元模型,并分析了不同地表温度下管道的应力分布特征。结果表明,随着地表温度升高,管道环向应力不断降低,地表温度降低导致环向应力不断升高。轴向应力最大值位于管道中部,且当外部温度为0℃时,轴向应力达到最大。管道埋深相对于管道直径对管道应力影响较小,管道直径越小,管道应力越大。This article combines practical cases to construct a finite element model of water supply pipelines under the action of pipe and soil,and analyzes the stress distribution characteristics of pipelines under different surface temperatures.The results indicate that as the surface temperature increases,the circumferential stress of the pipeline continuously decreases,and the decrease in surface temperature leads to a continuous increase in circumferential stress.The maximum axial stress is located in the middle of the pipeline,and it reaches its maximum when the external temperature is 0℃.The depth of pipeline burial has a relatively small impact on pipeline stress compared to pipe diameter.The smaller the pipe diameter,the greater the pipeline stress.

关 键 词：温度荷载 管道应力 敏感性 分析供水管道 

分 类 号：TU311[建筑科学—结构工程] TU991.36