基于智能振动传感器的结构抗震性能模拟与评估

摘 要随着我国建筑业智能化和数字化的脚步逐渐加快，以及社会对于建筑异常振动和地震动研究与评估的重视，基于无线智能振动传感器的结构健康监测系统是未来发展的主要方向。目前国内外对于无线智能传感器的研究开发仍处于发展阶段，无法大规模应用，因此本文针对一款新型无线智能振动传感器进行检测，判断其用于结构振动监测的可行性以及基于该智能振动传感器对新疆某一建筑进行振动监测，并根据振动数据对该建筑进行SSICOV模态分析和基于SAUSG的弹塑性分析，分析建筑结构的自振频率和振型等模态参数以及判断结构的抗震性能。关键词：无线智能振动传感器，模态分析，弹塑性分析AbstractWiththegradualaccelerationofthepaceofintelligentizationanddigitizationinChina'sconstructionindustry,aswellastheimportancethatsocietyattachestotheresearchandevaluationofabnormalvibrationandgroundvibrationinbuildings,thestructuralhealthmonitoringsystembasedonwirelessintelligentvibrationsensorsisthemaindirectionforfuturedevelopment.Atpresent,theresearchanddevelopmentofwirelessintelligentsensorsathomeandabroadarestillinthedevelopmentstageandcannotbeappliedonalargescale.Therefore,thispaperexaminesanewwirelessintelligentvibrationsensortodetermineitsfeasibilityforstructuralvibrationmonitoringaswellasvibrationmonitoringofabuildinginXinjiangbasedontheintelligentvibrationsensor,andcarriesoutaSSICOVmodalanalysisandanelastic-plasticanalysisbasedonSAUSGforthebuildingbasedonthevibrationdata.Basedonthevibrationdata,thebuildingwassubjectedtoSSICOVmodalanalysisandSAUSG-basedelastic-plasticanalysistoanalyzethemodalparameterssuchasself-oscillationfrequencyandvibrationmodeofthebuildingstructureandtodeterminetheseismicperformanceofthestructure.Keywords:WirelessIntelligentVibrationSensors,ModalAnalysis,Elastic-plasticAnalysis

绪论研究背景及意义建筑行业的现状与发展土木工程是一门涉及设计、建造和维护基础设施和建筑物的工程学科，对现代社会的发展和持续运转起着至关重要的作用，是国家建设与发展的基础。建筑业作为国民经济支柱产业的作用不断增强，为促进经济增长、缓解社会就业压力、推进新型城镇化建设、保障和改善人民生活、决胜全面建成小康社会做出了重要贡献。建筑业是我国建设与发展的基石，目前仍处于大力发展的阶段。我国城镇化水平已达66%ADDINZOTERO_ITEMCSL_CITATION{"citationID":"lxnAguOi","properties":{"formattedCitation":"\\super[1]\\nosupersub{}","plainCitation":"[1]","noteIndex":0},"citationItems":[{"id":327,"uris":["/users/local/j8khXm2k/items/MBPEUFA9"],"itemData":{"id":327,"type":"document","title":"王萍萍：人口总量有所下降人口高质量发展取得成效_中国经济网——国家经济门户.html"}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[1]且仍在逐步提高，未来建筑业预期也将处于持续发展阶段ADDINZOTERO_ITEMCSL_CITATION{"citationID":"b3eTZMNf","properties":{"formattedCitation":"\\super[2,3]\\nosupersub{}","plainCitation":"[2,3]","noteIndex":0},"citationItems":[{"id":328,"uris":["/users/local/j8khXm2k/items/QH9PNUPE"],"itemData":{"id":328,"type":"article-journal","abstract":"基于翔实的统计数据，对2021年中国建筑业发展的总体状况进行了分析。包括对建筑业增加值与国内生产总值、建筑业总产值、建筑业从业人数与企业数量、劳动生产率、利润总额与产值利润率、签订合同总额与新签合同额、房屋建筑施工面积与竣工面积、对外承包工程等方面的分析。总结出2021年中国建筑业在建筑业总产值、新签合同额、跨省完成产值、从业人数与劳动生产率等4个方面的发展特点。","container-title":"工程管理学报","DOI":"10.13991/ki.jem.2022.02.001","ISSN":"1674-8859","issue":"2","language":"中文;","note":"35citations(CNKI)[2024-4-1]","page":"1-5","source":"CNKI","title":"2021年建筑业发展统计分析","URL":"/kcms2/article/abstract?v=S8jPpdFxNHj3zWFa8CGCOe8GN6mbRDSF-yl5Zm1PoNUz2YSH5GihST0904ZdJVyexBIS8nm3WsMv131YAYyJzvOTODEizLSMJhpwgudGZqlSFioMdA5JcTtXQH83HgC6&uniplatform=NZKPT&language=gb","volume":"36","author":[{"family":"赵峰","given":""},{"family":"王要武","given":""},{"family":"金玲","given":""},{"family":"李晓东","given":""}],"issued":{"date-parts":[["2022"]]}}},{"id":168,"uris":["/users/local/j8khXm2k/items/LI83Z58P"],"itemData":{"id":168,"type":"article-journal","abstract":"<正>2022年是党和国家发展史上极为重要的一年。党的二十大胜利召开,以习近平同志为核心的党中央团结带领全党全国各族人民,统筹疫情防控和经济社会发展,有效应对超预期因素冲击,经济社会大局保持稳定。全国建筑业坚决贯彻党中央、国务院决策部署,大力推进转型升级,建筑业高质量发展取得新成效,为经济社会发展提供了重要支撑。","call-number":"11-1405/TU","container-title":"建筑","ISSN":"0577-7429","issue":"3","language":"中文;","page":"98-106","title":"2022年我国建筑业发展统计分析","author":[{"family":"赵峰","given":""},{"family":"王要武","given":""},{"family":"金玲","given":""},{"family":"李晓东","given":""}],"issued":{"date-parts":[["2023"]]}},"label":"page"}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[2,3]。如图1-1，从统计局公开数据中可看出，我国建筑业近年生产产值稳步增长ADDINZOTERO_ITEMCSL_CITATION{"citationID":"rWyy7TeP","properties":{"formattedCitation":"\\super[4\\uc0\\u8211{}7]\\nosupersub{}","plainCitation":"[4–7]","noteIndex":0},"citationItems":[{"id":57,"uris":["/users/local/j8khXm2k/items/FYJFU8QR"],"itemData":{"id":57,"type":"document","title":"2020年四季度和全年国内生产总值（GDP）初步核算结果-国家统计局.html"},"label":"page"},{"id":58,"uris":["/users/local/j8khXm2k/items/HFCY3VUL"],"itemData":{"id":58,"type":"document","title":"2021年四季度和全年国内生产总值（GDP）初步核算结果-国家统计局.html"},"label":"page"},{"id":59,"uris":["/users/local/j8khXm2k/items/YYK8S8UT"],"itemData":{"id":59,"type":"document","title":"国家统计局关于2022年国内生产总值最终核实的公告_部门动态_中国政府网.html"},"label":"page"},{"id":8,"uris":["/users/local/j8khXm2k/items/I6LEC5UY"],"itemData":{"id":8,"type":"document","title":"2023年四季度和全年国内生产总值初步核算结果-国家统计局.html"},"label":"page"}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[4–7]，2023年我国建筑业全年生产总值比上年同期增长7.1%ADDINZOTERO_ITEMCSL_CITATION{"citationID":"app5niflrk","properties":{"formattedCitation":"\\super[7]\\nosupersub{}","plainCitation":"[7]","noteIndex":0},"citationItems":[{"id":8,"uris":["/users/local/j8khXm2k/items/I6LEC5UY"],"itemData":{"id":8,"type":"document","title":"2023年四季度和全年国内生产总值初步核算结果-国家统计局.html"}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[7]，从2021年开始我国建筑业产值增长速度在快速提高。表STYLEREF5\s1SEQ表\*ARABIC\s51我国2019-2023年我国建筑业增长ADDINZOTERO_ITEMCSL_CITATION{"citationID":"pV7kA9pJ","properties":{"formattedCitation":"\\super[8]\\nosupersub{}","plainCitation":"[8]","noteIndex":0},"citationItems":[{"id":312,"uris":["/users/local/j8khXm2k/items/2QPPQN2Q"],"itemData":{"id":312,"type":"document","title":"中华人民共和国2023年国民经济和社会发展统计公报.html"}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[8] 在相关政策上，虽然由于我国房地产政策的调整，房地产行业目前处于下滑趋势ADDINZOTERO_ITEMCSL_CITATION{"citationID":"WXujP2YG","properties":{"formattedCitation":"\\super[9]\\nosupersub{}","plainCitation":"[9]","noteIndex":0},"citationItems":[{"id":7,"uris":["/users/local/j8khXm2k/items/CBPXI7UL"],"itemData":{"id":7,"type":"document","title":"2023年全国房地产市场基本情况-国家统计局.html"}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[9]，但我国建筑业的支柱产业仍占据我国经济的重要位置，并且根据“十四五”建筑业发展规划ADDINZOTERO_ITEMCSL_CITATION{"citationID":"lokSiwX8","properties":{"formattedCitation":"\\super[10]\\nosupersub{}","plainCitation":"[10]","noteIndex":0},"citationItems":[{"id":60,"uris":["/users/local/j8khXm2k/items/6RZFQTEE"],"itemData":{"id":60,"type":"document","title":"“十四五”建筑业发展规划.pdf"}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[10]，全国建筑业总产值年均增长率需保持在合理区间，建筑业增加值占国内生产总值的比重保持在6%左右，也即是说国家在建筑业上保持大力支持的态度。同时，根据“十四五”规划，我国建筑业需完成技术转型，加快发展智能建造，夯实标准化和数字化基础，我国建筑业重心将逐步由建造转向维护与监测，而振动监测系统可以为我国建筑业提供准确参数和数据支持，加快实现建筑业数字化、标准化、工业化的脚步，振动监测不仅是建筑维护阶段不可或缺的技术手段，也是研究地震动强有力的手段，为建筑结构抗震设计以及震后评估提供地震动数据支持，综上可得振动监测系统对于我国建筑业的发展具有重要意义。建筑异常振动以及地震的危害与案例建筑振动是指建筑结构在外界激励下(如人员流动、风荷载、地震动等)而产生振动响应的过程。建筑有感异常振动为振动幅度达到人体可感知的范围且振动源不明确的振动，产生的原因为外界激励的能量频率与建筑固有频率接近，从而产生了共振。此类异常振动事件往往会导致大面积的人员恐慌，造成直接或间接的财产损失，不及时处理可能会降低建筑结构的安全性。近年建筑异常振动事件频频发生且影响严重，近年国内影响最大的异常振动事件为赛格事件，2021年5月18日中午时段，位于广东省深圳市的赛格大厦发生显著异常振动，赛格大厦高72层，355.8米，楼内人员称明显感到大楼摇摆ADDINZOTERO_ITEMCSL_CITATION{"citationID":"kfzBtPh5","properties":{"formattedCitation":"\\super[11]\\nosupersub{}","plainCitation":"[11]","noteIndex":0},"citationItems":[{"id":61,"uris":["/users/local/j8khXm2k/items/M8G2T9PV"],"itemData":{"id":61,"type":"document","title":"深圳赛格广场大楼发生晃动无人员伤亡_新闻_央视网().html"}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[11]，物业单位紧急疏散楼内人员近一万五千人，事件现场如图11(a)~(c)所示。事件发生后，专家组迅速介入，根据全楼监测等方面表明建筑各方向的振动信号频谱均存在2.12Hz的异常能量频段，两个月后最终确定是顶层的桅杆风致涡激共振导致全楼共振ADDINZOTERO_ITEMCSL_CITATION{"citationID":"U0m8CPln","properties":{"formattedCitation":"\\super[12]\\nosupersub{}","plainCitation":"[12]","noteIndex":0},"citationItems":[{"id":33,"uris":["/users/local/j8khXm2k/items/NG3JR68B"],"itemData":{"id":33,"type":"document","title":"赛格广场大厦楼顶双桅杆结构的风致高阶涡振分析_黄铭枫.pdf"}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[12]ADDINZOTERO_ITEMCSL_CITATION{"citationID":"kUA7DX2W","properties":{"formattedCitation":"\\super[13]\\nosupersub{}","plainCitation":"[13]","noteIndex":0},"citationItems":[{"id":67,"uris":["/users/local/j8khXm2k/items/4TXJ29Z4"],"itemData":{"id":67,"type":"article-journal","abstract":"在大型复杂工程结构上进行现场模态测试时，由于结构规模体量大并存在空间隔断，导致数据采集设备与传感器之间快速布设数据传输线困难。因此，有必要解决不同位置分布式同步采集设备时间精确同步问题，研发易于快速安装的分布式数据采集和无线传输设备。为此，提出基于“北斗”卫星授时的结构振动分布式同步采集算法，集成分布式同步采集硬件与研发数据在线采集和无线传输软件，获取大型复杂工程结构不同空间位置时间同步动态响应，基于随机子空间算法自动识别工程结构服役状态下真实的模态参数。在赛格大厦振动事件溯源工作中，该系统成功捕捉到5月20日12:00—13:00结构共振时第69层与桅杆底部的加速度响应，发现四次共振均以频率2.12Hz振动主导。基于该系统在环境激励条件下的现场模态测试，识别结构前19阶动力学参数，发现频率2.12Hz是主体结构弯扭耦合和桅杆面内对称振动模态。基于现场激振测试识别频率2.12Hz对应的阻尼比，发现阻尼比随着振幅的增加突然减小然后逐步增加，较低的阻尼比是导致赛格大厦发生共振的原因之一。","container-title":"建筑结构学报","DOI":"10.14006/j.jzjgxb.2022.0050","ISSN":"1000-6869","issue":"10","language":"中文;","note":"12citations(CNKI)[2024-2-29]","page":"76-84","source":"CNKI","title":"基于分布式同步采集的赛格大厦结构动力学参数识别","URL":"/kcms2/article/abstract?v=1TlORdBtwpYtDGUcs2iTnVpbp5vOYIfs9XbAfPvY8i_uamAj1G3pcC9sVbW2wnUH_uJamevTgFo5N_KhOmObXn21FPQSpb28AGQx0X_MkKx3FRL0TxsNvg16iwcHcZly&uniplatform=NZKPT&language=gb","volume":"43","author":[{"family":"胡卫华","given":""},{"family":"唐德徽","given":""},{"family":"李俊燕","given":""},{"family":"徐增茂","given":""},{"family":"王宇超","given":""},{"family":"卢伟","given":""},{"family":"李祚华","given":""},{"family":"滕军","given":""}],"issued":{"date-parts":[["2022"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[13]。经历了近四个月的振动溯源及原位测试后，最终赛格大厦于同年9月8日拆除桅杆后陆续恢复使用。赛格大厦作为世界最高的钢管混凝土架构大厦以及深圳市福田区的地标建筑，该异常振动事件导致公司年度经营损失5500万元[12]以及社会对于超高层建筑安全性的恐慌。无独有偶，同年1月20日，韩国首尔首尔城东区的超高层商住两用建筑AcroSeoulForest大楼发生建筑晃动现象，经专家调查后确认原因为建筑9楼的某舞蹈团体多人共舞产生共振，最终经专家组织建筑安装降低振动水平的振动控制器后大楼才陆续恢复使用。(a)深圳赛格大厦(b)紧急疏散楼内商户疏散(c)振动源为顶层桅杆图STYLEREF5\s1SEQ图\*ARABIC\s51赛格大厦异常振动事件 建筑结构由于始终处于外部复杂激励的影响，产生不同的振动响应，结构内部产生不可见的微裂缝，随着时间的推移，微裂缝的扩展导致构件逐渐劣化，建筑的自振频率也会因此而改变。当建筑由于外部原因出现共振现象时，可能导致结构加速损坏并影响建筑的正常使用。建筑出现异常振动原因多样、溯源困难、振动类型复杂，大多数建筑有感异常振动事件需要耗费大量人力物力才能完成振动源定位于振动类型识别，且由于缺乏必要的监测手段甚至无法确定振动原因与振动类型，从而留下安全隐患。根据调研，国内外有据可查的建筑有感异常振动事件如表11所示。表STYLEREF5\s1SEQ表\*ARABIC\s52近年建筑有感异常振动事件汇总年份建筑信息事件影响振动源定位振动源振动类型2007广东某高校宿舍ADDINZOTERO_ITEMCSL_CITATION{"citationID":"lmp3CpfY","properties":{"formattedCitation":"\\super[14]\\nosupersub{}","plainCitation":"[14]","noteIndex":0},"citationItems":[{"id":257,"uris":["/users/local/j8khXm2k/items/RRY3ELE3"],"itemData":{"id":257,"type":"article-journal","abstract":"对广州某宿舍楼的晃动现象进行了分析,通过现场调研和采用微震观测设备检测分析后指出:由于该楼房主供水管道在供水时的管道振动频率与宿舍楼自振频率接近,从而引起共振现象,导致了楼体的摇晃,并提出了解决该楼房晃动的方法。最后得出结论:当建筑物的自振周期与几个振源相同或接近时,建筑物会发生晃动,可以通过改变建筑物的自振频率或振源的振动频率,避免共振的发生。","container-title":"工程抗震与加固改造","DOI":"10.16226/j.issn.1002-8412.2009.02.019","ISSN":"1002-8412","issue":"2","language":"中文;","note":"4citations(CNKI)[2024-2-29]","page":"76-78","source":"CNKI","title":"内部干扰引起某宿舍楼共振分析","URL":"/kcms2/article/abstract?v=1TlORdBtwpaWuw1yUhrxDrMIYTrwuXCfwvbRJoraH7Rd2eCU7yUOWlkZRUKWO0IeojIcB2ourWpqFnlqR3juCBIRosBw-fnaWpcyoCDUaU5kZDMVxlJI9A==&uniplatform=NZKPT&language=gb","volume":"31","author":[{"family":"伏焕昌","given":""}],"issued":{"date-parts":[["2009"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[14]人员恐慌建筑内供水管道机械振动2011韩国首尔ADDINZOTERO_ITEMCSL_CITATION{"citationID":"Sp3EQeEU","properties":{"formattedCitation":"\\super[15]\\nosupersub{}","plainCitation":"[15]","noteIndex":0},"citationItems":[{"id":65,"uris":["/users/local/j8khXm2k/items/MH54I36Q"],"itemData":{"id":65,"type":"article-journal","abstract":"Inthispaper,thefieldvibrationmeasurementtestshavebeenconductedforinvestigatingtheexactcausesoftheabnormalvibrationaccidentwhichoccurredonlastJuly5,2011inTechnoMart,a39storysteelbuildingstructure.Theverticalaccelerationsofthebuildingfloorsweremeasuredunderthe4Dmovie-theateroperationandhumanrhythmicmovementsinafitnesscenterwhichwereestimatedasonesofthevibrationsources.Fromfieldtests,itcouldbeidentifiedthatthebuildinghasglobalverticalvibrationmodeof2.7Hznaturalfrequencyandhumangrouprhythmicmovementshavingfrequencycomponentmainlycloseto2.7Hzinafitnesscentercausedtheresonanceoftheverticalmode.Especially,thefactthattheidentifieddampingratiooftheverticalmodebyobservingthefreevibrationresponseafterthehumangroupexcitationwasjust0.3%,impliesthatresponseamplificationcouldbesosignificantthatonly23peoplecouldexcitethe39storybuildinghavingthetotalmassof30thousandsofmetrictonmovegloballyupanddown.Tunedmassdamper(TMD)isbeingconsideredasameasureforkeepthisresonancebyaddingdampingtothebuilding.TheTMDdesignresultsshowsthattheaccelerationlevelresultingfromthesamehumanexcitationcanbereducedtoonefourthofthatofthebuildingwithoutTMD.","container-title":"EngineeringStructures","DOI":"10.1016/j.engstruct.2013.09.035","ISSN":"01410296","journalAbbreviation":"EngineeringStructures","language":"en","page":"296-305","source":"DOI.org(Crossref)","title":"Globalverticalmodevibrationsduetohumangrouprhythmicmovementina39storybuildingstructure","URL":"/retrieve/pii/S0141029613004471","volume":"57","author":[{"family":"Lee","given":"Sang-Hyun"},{"family":"Lee","given":"Kyung-Koo"},{"family":"Woo","given":"Sung-Sik"},{"family":"Cho","given":"Seung-Ho"}],"accessed":{"date-parts":[["2024",2,29]]},"issued":{"date-parts":[["2013",12]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[15]TechnoMart大厦人员恐慌多日封锁检测建筑12层健身馆人体振动2012上海市某12层住宅ADDINZOTERO_ITEMCSL_CITATION{"citationID":"DgebC2Jw","properties":{"formattedCitation":"\\super[16]\\nosupersub{}","plainCitation":"[16]","noteIndex":0},"citationItems":[{"id":255,"uris":["/users/local/j8khXm2k/items/3YSGA884"],"itemData":{"id":255,"type":"article-journal","abstract":"针对某高层剪力墙结构住宅的振动问题,对引起房屋振动的振源进行分析,建立房屋结构的有限元模型。并对该高层住宅进行现场振动测试,实测数据在频域内的分析表明房屋的振动是因结构的共振效应引起。利用实测结构振动在时域内的响应,结合烦恼率模型,将基于烦恼率模型的建筑物振动评价分析结果与使用振动评价标准所得的结果进行比较,分析表明传统的评价标准得出的结果与现场居民感受不符,而基于烦恼率模型的评价结果与现场居民感受相符,可以作为类似问题的参考。并建议在房屋结构设计时应考虑周边环境振动的影响。","container-title":"建筑结构","DOI":"10.19701/j.jzjg.2012.09.020","ISSN":"1002-848X","issue":"9","language":"中文;","note":"3citations(CNKI)[2024-2-29]","page":"86-89","source":"CNKI","title":"某高层住宅振动分析及评价","URL":"/kcms2/article/abstract?v=1TlORdBtwpY473ZjYxLPI3nQR69Q6hrUwtjyVnGUu8SwTNaDf3MDC9kVV5dN_PnrJmo1eq2M8zcazG45fj1n1ck1ykazllJA29MnVwW4oUmS6z03igvkQg==&uniplatform=NZKPT&language=gb","volume":"42","author":[{"family":"李敏锋","given":""},{"family":"金国芳","given":""},{"family":"汪守创","given":""}],"issued":{"date-parts":[["2012"]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[16]人员恐慌800m外石材厂锯石机机械振动2019浙江某13层住宅ADDINZOTERO_ITEMCSL_CITATION{"citationID":"PHPB3QYt","properties":{"formattedCitation":"\\super[17]\\nosupersub{}","plainCitation":"[17]","noteIndex":0},"citationItems":[{"id":252,"uris":["/users/local/j8khXm2k/items/G9F5WIG9"],"itemData":{"id":252,"type":"article-journal","abstract":"对某经常出现明显水平振动的13层住宅楼进行测试.由楼层加速度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limitstheretrievalofveryimportantsensordata.However,recentrulingsbytheFederalCommunicationCommissioncoupledwithadvancesinwirelesscommunicationproductshavenowmadeitpossibletocircumventexistingwiredandcellularinfrastructuretoretrievedatafromsmartsensorsremotelyandmoreeconomically.Thispaperdiscussesanovelapproachusingsmartsensorsandwirelesscommunicationtechnologytomonitorthehealthoflargecivilstructuresremotely.Specifically,aremotehealthmonitoringsystemforlargecivilstructuresisdevelopedusingspreadspectrumwirelessmodems,datacommunicationsoftwareandconventionalstrainsensors.Thissystemisusedtomonitortheloadsonalaboratorytestspecimenwithaboltedlapjointfromasfarawayasonemile.Commandsareissuedfromanotebookpersonalcomputertoinstructthehealthmonitoringsystemtoeitherexcitethestructureoracquiredatafromsensorsmountedexternallytothestructure.Datafrommeasurementsmadeonthestructurearethentransmittedwirelesslybacktoanotebookcomputerforprocessingandanalysisusingdamagedetectionalgorithms.","container-title":"SmartMaterialsandStructures","DOI":"10.1088/0964-1726/7/5/007","ISSN":"0964-1726,1361-665X","issue":"5","journalAbbreviation":"SmartMater.Struct.","language":"en","page":"627-636","source":"DOI.org(Crossref)","title":"Conceptualframeworkofaremotewirelesshealthmonitoringsystemforlargecivilstructures","URL":"/article/10.1088/0964-1726/7/5/007","volume":"7","author":[{"family":"Pines","given":"DarryllJ"},{"family":"Lovell","given":"PhilipA"}],"accessed":{"date-parts":[["2024",3,20]]},"issued":{"date-parts":[["1998",10,1]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[19]等开发了一款用于土木结构健康监测的软硬件结合的无线智能监测系统，通过硬件进行数据采集和保存，软件进行数据的分析和管理，该系统使用无线调制解调器实现长距离无线数据传输，通过电脑接收数据并进行损坏情况评估。该无线监测系统颠覆了传统的有线监测网络，逐渐成为结构健康监测领域中的研究热门。为完善无线结构健康监测系统的开发，各种针对结构响应分析的算法也相继涌现，如1999年MaalejADDINZOTERO_ITEMCSL_CITATION{"citationID":"o4RE6XHB","properties":{"formattedCitation":"\\super[20]\\nosupersub{}","plainCitation":"[20]","noteIndex":0},"citationItems":[{"id":316,"uris":["/users/local/j8khXm2k/items/6TIG4D6A"],"itemData":{"id":316,"type":"article-journal","abstract":"Asystemidenti®cationprocedureisdevelopedforprocessingstructuralresponsesignalsregisteredbysensorspermanentlyinstalledformonitoringatcriticallocationsofastructure.Theprocedure,whichisbasedonspectrogramestimationandisappliedwithinasweepingwindowofsignalsamples,wasbuiltintoadataprocessingsoftwarethatallowsthedeterminationofthefundamentalfrequenciesofvibratingstructuralmembersandcanbeusedtoidentifythechangingpropertiesofinstrumentedstructuralsystemsthroughtime.FielddataobtainedfromstrainsensorsonaspecializedbridgedeckstructuralsystemthatspanstheSalmonRiverinNovaScotia,Canadawereusedascasestudyforevaluatingtheperformanceoftheproposedmethod.Successfulcorrelationwasobtainedbetweentheoreticalandobservedvibrationcharacteristics,whereasseveralimportantfeaturesoftheactualfunctionofvariousbridgememberswererevealedthroughtheanalysisprocedure.#1999ElsevierScienceLtd.Allrightsreserved.","container-title":"Computers&Structures","DOI":"10.1016/S0045-7949(98)00211-9","ISSN":"00457949","issue":"6","journalAbbreviation":"Computers&Structures","language":"en","page":"675-689","source":"DOI.org(Crossref)","title":"Spectralanalysisofsensordataincivilengineeringstructures","URL":"/retrieve/pii/S0045794998002119","volume":"70","author":[{"family":"Maalej","given":"M."},{"family":"Karasaridis","given":"A."},{"family":"Hatzinakos","given":"D."},{"family":"Pantazopoulou","given":"S.J."}],"accessed":{"date-parts":[["2024",3,20]]},"issued":{"date-parts":[["1999",3]]}}}],"schema":"/citation-style-language/schema/raw/master/csl-citation.json"}[20]等提出了一种信号处理算法，用于分析结构的动态特性，该算法成功地应用于处理从加拿大新斯科舍省的鲑鱼河桥获得的信号。2000年，土木结构健康监测系统的发展的同时，也催生了GregoryADDINZOTERO_ITEMCSL_CITATION{"citationID":"AwCT9wa2","properties":{"formattedCitation":"\\super[21]\\nosupersub{}","plainCitation":"[21]","noteIndex":0},"citationItems":[{"id":46,"uris":["/users/local/j8khXm2k/items/UEGQLZ74"],"itemData":{"id":46,"type":"paper-conference","abstract":"Thispaperreviewsamethodoflocalizedstructuralhealthmonitoringbasedonrelativechangesinlocalizedflexibilityproperties.Thelocalizedflexibilitymatricesareobtainedeitherbyapplyingadecompositionproceduretoanexperimentallydeterminedglobalflexibilitymatrixorbyprocessingtheoutputsignalsofavibrationtestinasubstructure-by-substructuremanner.Thetheoryisbasedonthepartitioningoftheenergyfunctionalofadiscretedynamicsystem,forwhichLagrangemultipliersareutilizedtoenforcecompatibilityconstraintsbetweenneighboringsubstructuralregions.TheresultantdynamicsarethenstatedintermsofgeneralizedvariablesthatareuniquetoeachsubstructureandtheLagrangemultipliersthatcanbeconsideredasinterfaceforceswhichtransferenergybetweensubstructures.Thistheoryisdemonstratedwithanexperimentaldamagedetectiontestofabridgecolumnmodel.","DOI":"10.1117/12.383135","event-place":"NewportBeach,CA","event-title":"SPIE's7thAnnualInternationalSymposiumonSmartStructuresandMaterials","language":"en","page":"143-153","publisher-place":"NewportBeac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