Article(id=1242131622548546329, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242131603674181645, articleNumber=null, orderNo=11, doi=10.3981/j.issn.1000-7857.2014.06.010, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1362672000000, receivedDateStr=2013-03-08, revisedDate=1389456000000, revisedDateStr=2014-01-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1394174245843, onlineDateStr=2014-03-07, pubDate=1393516800000, pubDateStr=2014-02-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1394174245843, onlineIssueDateStr=2014-03-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774076856502, creator=sys-migrate, updateTime=1774076856502, updator=sys-migrate, issue=Issue{id=1242131603674181645, tenantId=1146029695717560320, journalId=1146031591421210625, year='2014', volume='32', issue='6', pageStart='1', pageEnd='96', issueExtLink='null', onlineDate='null', pubDate='1393516800000', pubDateStr='2014-02-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774076851994, creator='sys-migrate', updateTime=1774076851994, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=63, endPage=67, ext={EN=ArticleExt(id=1242131626268897392, articleId=1242131622548546329, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Analysis of Parameters of the AR Model for Simulation of Fluctuating Wind on High-rise Steel Frame with Prestressed Cable Support, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=Two critical parameters of the AR model are studied in the simulation of the fluctuating wind-time step and time points, focusing on the influence of the two parameters on the simulation of a high-rise steel frame with prestressed cable supports. The simulation of the fluctuating wind is based on the AR model, the finite element software Sap2000 is used to build the structural model, a mathematical software is used to program the AR model. Various values of the two parameters are selected, the modal analysis and the time history analysis of the structure are made. The ensemble power spectrum curve and the ensemble cross power spectrum curve are compared with the target power spectrum curve, and the reasonable value can be selected through the match of two curves. It is indicated that the value of the time step has a great effect on the accuracy of the simulation, and the suitable value should be around 0.10-0.18 s, if the value exceeds the range, the ensemble power spectrum can not match the target power spectrum and the accuracy of the simulation can not be ensured. The number of time points have little impact on the simulation., authors=WANG Haizhong¹, RAN Kexian¹, LIU Xuechun¹, YANG Maogang², WANG Hongtao³, ZHAO Yulong¹, SONG Linlin¹, XU Axin¹, authorsList=WANG Haizhong, RAN Kexian, LIU Xuechun, YANG Maogang, WANG Hongtao, ZHAO Yulong, SONG Linlin, XU Axin, authorCompany=1. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;
2. Beijing Zhongan Zhihuan Evaluation Center Co., Ltd., Beijing 100026, China;
3. Chinese Xinxing Construction Exploitation Corporation, Beijing 100039, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=OGww/YrfC8RtDlBBpeaK7A==, pdfFileSize=1833110, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1242131624008167525, articleId=1242131622548546329, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=高层钢框架预应力索支撑结构脉动风模拟AR模型参数分析, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=以高层钢框架预应力索支撑结构为例，研究了应用AR 模型进行脉动风模拟时，模型的2 个关键参数——时间步长、时域点数的取值对模拟结果的影响。在讨论基于AR 模型的脉动风模拟方法的基础上，利用有限元软件Sap2000 建立结构模型，利用Matlab 编制AR 算法程序，分别选用不同的时间步长、时域点数对结构进行脉动风速时程分析，将生成的脉动风速功率谱曲线与目标谱进行对比，根据曲线吻合情况确定参数的合理取值范围。结果表明，时间步长的取值对AR 模型模拟结果有较大影响，其最优值域为0.10~0.18 s，超出这一范围均会导致功率谱曲线与目标谱偏离，降低模拟精度；时域点数对AR 模型模拟精度的影响较小，可根据工程需要选择时域点数。, authors=王海忠¹, 冉克显¹, 刘学春¹, 杨茂钢², 王洪涛³, 赵玉龙¹, 宋林琳¹, 徐阿新¹, authorsList=王海忠, 冉克显, 刘学春, 杨茂钢, 王洪涛, 赵玉龙, 宋林琳, 徐阿新, authorCompany=1. 北京工业大学建筑工程学院, 北京100124;
2. 北京中安质环技术评价中心有限公司, 北京100026;
3. 中国新兴建设开发总公司, 北京100039, correspAuthors=null, authorNote=王海忠，副教授，研究方向为钢结构及预应力钢结构，电子信箱：wanghaizhong@bjut.edu.cn；冉克显，硕士研究生，研究方向为高层预应力钢结构风振舒适度，电子信箱：693985855@qq.com, correspAuthorsNote=刘学春，liuxuechun@bjut.edu.cn, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=vvotIF30nsJe3ol6iDfqig==, pdfFileSize=1833110, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=国家自然科学基金重点项目（50678012，51248009）)}, authors=null, keywords=[Keyword(id=1242131623651651682, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242131622548546329, language=CN, orderNo=1, keyword=脉动风模拟), Keyword(id=1242131623743926371, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242131622548546329, language=CN, orderNo=1, keyword=AR 模型), 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