服役埋地管道纵向动力响应分析研究  

Study on shell-spring model for longitudinal dynamic response analysis of operating buried pipeline

作　　者：周金雯 崔杰[1,2] 董瑞 李亚东[1,2] 单毅 ZHOU Jinwen;CUI Jie;DONG Rui;LI Yadong;SHAN Yi(College of Civil Engineering,Guangzhou University,Guangzhou 510006,China;Earthquake Engineering Research&Test Center of Guangzhou University,Guangzhou 510006,China;Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China)

机构地区：[1]广州大学土木工程学院,广东广州510006 [2]广州大学工程抗震研究中心,广东广州510006 [3]中国地震局工程力学研究所地震工程与工程振动重点实验室,黑龙江哈尔滨150080

出　　处：《地震工程与工程振动》2022年第5期196-203,共8页Earthquake Engineering and Engineering Dynamics

基　　金：中国地震局工程力学研究所基本科研业务费专项资助项目(2018D16);国家自然科学基金项目(51878192,52008121);中国博士后基金项目(2020M682652)。

摘　　要：为完善埋地管道纵向动力分析有限元模型,确定管道运行内压对其动力响应的影响规律。以滨海城市地下管道地震工程为背景,采用梁-弹簧模型与壳-弹簧模型进行动力响应数值试验,对比分析2种模型的异同点,同时,确定地震波的类型和运行内压对管道应力应变与位移的影响规律。研究结果表明:2种模型均能够对输入地震动作出合理的响应,壳-弹簧模型适合更多的工况且更能直观表现管道结构的变形情况,运行内压的存在对埋地管道环向应力应变具有显著影响,而轴向地震响应情况则主要由输入地震动控制。该研究结果可为埋地管道在地震作用下的响应分析与抗震设计提供更加可靠完善的计算模型与设计依据。In order to perfect the finite element model of longitudinal dynamic analysis of buried pipeline,the influence of internal pressure on dynamic response of buried pipeline was determined. Based on the seismic engineering of underground pipelines of coastal cities,numerical tests of dynamic response were carried out based on Longitudinal response displacement method. The similarities and differences of the two models were compared and analyzed. At the same time,the effects of seismic wave type and operating internal pressure on stress,strain and displacement response of pipelines were determined. The results show that both models are able to make a reasonable response,and the shell-spring model is more suitable for the work and intuitively shows the deformation of the pipeline structure. The existence of the internal pressure of buried pipeline ring has great significant influence on the stress and strain, and axial seismic response is mainly controlled by imported vibration. The research results can provide a more reliable and perfect calculation model and design basis for the response analysis and seismic design of buried pipelines under earthquake action.

关 键 词：埋地管道 纵向反应位移法 壳-弹簧模型 运行内压 

分 类 号：TU9[建筑科学]