埋地玻璃钢夹砂管地震响应的影响因素分析  

THE ANALYSIS OF INFLUENCES OF MAIN FACTORS TO SEISMIC RESPONSE OF BURIED FRPM PIPE

作　　者：徐磊[1] 刘杰 叶志才[3] 任青文[4] 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]重庆市水利电力建筑勘测研究设计院,重庆400020 [3]宿迁市水务局,江苏宿迁223800 [4]河海大学力学与材料学院,江苏南京210098

出　　处：《玻璃钢／复合材料》2012年第6期57-63,共7页Fiber Reinforced Plastics/Composites

基　　金：国家自然科学基金青年科学基金项目(51109067);国家自然科学基金面上项目(51079045);国家自然科学基金重点项目(11132003);河海大学中央高校基本科研业务费专项资金项目(2009B08114);中国水利水电建设股份有限公司重大科技专项“特大地下洞室群施工安全环保关键技术研究与应用”

摘　　要：玻璃钢夹砂管在土木水利工程领域中得到了越来越广泛的应用,但现有的埋地管道地震响应分析模型大多不考虑管-土动力相互作用,且多针对均质材料管道,无法应用于具有明显层状复合材料结构特征的玻璃钢夹砂管。为此,本文基于玻璃钢夹砂管的层状复合材料结构特征,建立了完整的埋地玻璃钢夹砂管地震响应分析模型,在数值分析模型中,考虑了管-土间复杂的动力相互作用,以及地震散射波从有限域向无限域的传播。在上述基础上,重点分析管道长度、管道直径、管周土体弹性模量以及管道埋深等因素对埋地玻璃钢夹砂管地震响应的影响,并通过对影响规律的分析给出提高埋地玻璃钢夹砂管抗震能力的工程建议措施。FRPM pipes have been widely used In the field of civil engineering and hydraulic engineering.The current seismic analysis models for buried pipes generally don't take the consideration of the dynamic interaction between pipe and surrounding soil,and most of the models are for homogeneous pipe.For the above-mentioned reasons,the current seismic analysis models for buried pipes can not be applied to FRPM pipes with laminated structure.The whole seismic analysis model for buried FRPM pipes is presented,the presented model takes the laminated structure of FRPM pipes in consideration,and the complicated dynamic interaction between pipe and surrounding soil and the propagation of seismic scattering waves form finite field to infinite field are also considered in the presented model.Based on the above mentioned,the influences of main factors-seismic intensty,input manner of seismic wave,soil around pipe,depth,diameter of pipe and length of pipe to buried FRPM pipe are studied,then the suggestions on engineering measure are given through the influence analysis.

关 键 词：玻璃钢夹砂管 地震响应 粘弹性边界 动力接触 层合壳单元 ABAQUS 

分 类 号：TB332[一般工业技术—材料科学与工程] TU990.3[建筑科学—市政工程]