层状场地中粘弹性人工边界古城墙地震反应分析  

Seismic Response Analysis of Ancient City Wall with Viscoelastic Artificial Boundary in Layered Site

作　　者：唐晓荣 周占学[1,2] 于爽 李杨 袁晓聪 TANG Xiao-rong;ZHOU Zhan-xue;YU Shuang;LI Yang;YUAN Xiao-cong(Hebei Institute of architectural engineering,Zhangjiakou 075000,Hebei;Hebei Key Laboratory of diagnosis,reconstruction and disaster resistance of Civil Engineering)

机构地区：[1]河北建筑工程学院,河北张家口075000 [2]河北省土木工程诊断、改造与抗灾重点实验室

出　　处：《河北建筑工程学院学报》2021年第1期69-78,共10页Journal of Hebei Institute of Architecture and Civil Engineering

基　　金：河北省高校百名优秀创新人才支持计划资助SL-RC2017033;河北省教育厅项目ZD2015094,Z2020222;研究生创新基金XY202117;河北建筑工程学院校级科研基金项目(XA201903);河北省土木工程诊断,改造与抗灾重点实验室开放课题基金资助;张家口市科技计划项目2021028D。

摘　　要：主要介绍了层状场地中古城墙粘弹性人工边界在ABAQUS有限元软件如何实现以及粘弹性人工边界在地震工程中的应用。结果表明:考虑层状场地时,古城墙自振频率减小,周期变大;土—古城墙模型的顶部节点位移和加速度均比古城墙模型增大,进行古城墙抗震性能分析时,考虑结构与下部土层的相互作用才能使得结构抗震更加安全。How to realize the viscoelastic artificial boundary of ancient city wall in layered site in ABAQUS finite element software and the application of viscoelastic artificial boundary in seismic engineering are mainly introduced in this paper.The results show that the natural frequency of the ancient city wall decreases and the period increases when the layered site is considered;The displacement and acceleration of the top node of the soil ancient city wall model are larger than those of the ancient city wall model.When analyzing the seismic performance of the ancient city wall,the interaction between the structure and the lower soil layer should be considered to make the structure more secure against earthquakes.

关 键 词：粘弹性边界 ABAQUS 地震分析 古城墙 

分 类 号：TU91[建筑科学—建筑理论]