简介：PolygonalobjectisafundamentaltypeofgeometricdatainvectorGIS.Thekeystepofcleaningtopologicalrelationshipafterdatacollectionofpolygonallayeristobuildpolygonalobjectsfromdigitalarcs.Therawdigitalarcsmayintersectwitheachother.Thealgorithmforbuildingpolygonalobjectsaftertherawarcshavebeensplitatallintersectionsispresented.Thebuild-upofpolygonalobjectsinthispaperisdesignedtobeimplementedbytwosteps.Thefirststepistoextractallthepolygonsneededforbuild-upofpolygonalobjectsfromarcs.Thesecondstepistoorganizepolygonalobjectsfromthesepolygons.Forthefirststep,atracingalgorithmisproposed.Thealgorithmmerelyextractsthepolygonsneededforthebuild-upofpolygonalobjects,whichisasubsetofallthepossiblepolygonsthatcanbeinducedfromthearcs.Forthesecondstep,analgorithmbasedonaspeciallydesignedorderofpolygonsisadvanced.Allthetopologicalrelationshipsamongthepolygonsaresho

简介：一个城市的边界层模型(UBLM)被合并大楼的效果与改进一部分拖系数和一顶高度分布式的华盖拖长度规模。改进UBLM被使用与不同height-to-width比率在北京区域上在三典型的城市的块上模仿风地。为比较，在一样的块上的风地被明确地解决大楼的一个城市的子域规模模型模仿。从二个不同方法模仿的风地在好同意。然后，为北京的二维的造的词法特征和城市的华盖参数从造高度数据详细说明被导出。最后，experiements被进行用改进UBLM在北京在风地上调查大楼的效果。

简介：一座大楼城市的流动上的密度的效果与RNGκ用一个CFD模型被调查-ɛ骚乱闭合计划。有不同的造的27个案例是密度参数(例如，大楼和街峡谷纵横比)数字地被模仿。当大楼的密度参数变化，不同流动政体出现。当街峡谷相对狭窄、高时，在垂直方向的二个相反旋转的旋涡被产生。沿着街的风速被大楼的长度主要影响。然而，以一座单个大楼的密度参数发现或概括街峡谷流动的特征是很困难的。这是因为复杂流动模式由于旋涡结构和旋涡数字的变化出现。平均卷的涡度大小是很好的指示物尽管有流动的强壮的相关性，在大楼的密度参数的变化上反映流动特征。平均卷的涡度大小是大楼的长度和街峡谷宽度的强壮的功能的多线性的回归表演。大楼的长度的增加减少街峡谷的涡度流动，当时，在街上，峡谷宽度增加的增加涡度。

简介：Intenseresearchandrefinementofthetoolsusedinperformance-basedseismicengineeringhavebeenmade,butthematurityandaccuracyofthesemethodshavenotbeenadequatelyconfirmedwithactualdatafromthefield.Thegapbetweentheassumedcharacteristicsofactualbuildingsystemsandtheiridealizedcounterpartsusedforanalysisiswide.Whentherandomlydistributedflawsinbuildingsastheyexistinurbanareasandtheextremevariabilityofgroundmotionpatternscombine,theconventionalproceduresusedforpushoverordynamicresponsehistoryanalysesseemtofallshortofreconcilingthedifferencesbetweencalculatedandobserveddamage.Foremergencyplanningandlossmodelingpurposes,suchdiscrepanciesarefactorsthatmustbeborneinmind.Tworelevantexamplesareprovidedherein.Theseexamplesdemonstratethatconsensus-basedanalyticalguidelinesalsorequirewell-idealizedbuildingmodelsthatdonotlendthemselvestoreasonablymanageablerepresentationsfromfielddata.Asacorollary,lossmodelingtechniques,e.g.,usedforinsurancepurposes,mustundergofurtherdevelopmentandimprovement.

简介：纸学习扎根的垂直变丑和附近的大楼装载引起的大地水准面波动，基于装载的潮理论。对举起的影响也被考虑。结果证明扎根的垂直变丑和大地水准面波动两个都到达毫米大小。因此，显著地装载的大楼影响调查的精确工程，是明显的，并且它必须严重在申请被考虑。

简介：［1］NyergesTL.Cognitiveaspectsofhuman-computerinteractionforgeographicinformationsystems.KluwerAcademicPublishers,1995.287～310［2］ChurcherN,ChurcherC.GroupARC——acollaborativeapproachtoGIS.In:Proceedingsofthe8thColloquiumoftheSpatialInformationResearchCentre.UniversityofOtago,1996.156～163［3］ObermeyerNJ,PintoJK.Theroleofgeographicinformationwithinanorganization'sMIS.In:ManagingGISs.TheGuilfordPress,1994.35～51［4］SpencerB.Spatialdatawarehousing.In:ProceedingsofGISAM/FMASLA'97&Geoinformatics'97onMappingtheFutureofAsia-Pacific.China:Taipei.1997.545～553［5］ChenJ,JiangJ,YanR,etal.Integratingandmanagingheterogeneousgeographicinformationforurbanplanning&landadministration.ActaGeodaeticaetCartographicaSinica,1998,27(2):153～160［6］WuR.Towardsanenterprise-wideGISsystem:acasestudy.In:ProceedingsofGISAM/FMASIA'97&Geoinformatics'97onMappingtheFutureofAsia-Pa-cific.China:Taipei,1997.657～671［7］ChenJ,JiangJ,JinS,etal.designingacollaborativeworksystembyintegratingGISwithOA.JournalofRemoteSensing,1998,2(3):59～64［8］GoodmanJN.Albertalandrelatedinformationsystem-afederateddatabasecasestudy.In:ProceedingsofURISA,1994［9］IgrasE.Aframeworkforqueryprocessinginafederateddatabasesystem:acasestudy.In:ProceedingsofURISA,1994［10］ShethAP.Federateddatabasesystemsformappingdistributed,heterogeneous,andautonomousdatabases.ACMComputingSurveys,1990,22(3):183～235［11］NewtonPW,GippsPG,CrawfordJR.Virtualplanninganddesign:anemegingparadigm.In:Proceedingsof4thinternationalconferenceoncomputersinurbanplanningandurbanmanagement.Australia:Melbourne,1995.27～38［12］BennettWS.Visualizingsoftware—agraphicalnotationforanalysis,design,anddiscussion.NewYork:MarcelDekker,Inc.,1992［13］TeisseireM,PonceletP,Cicchetti

简介：从激光雷达数据的大楼的抽取是最近的年里的一个活跃研究领域。为从激光雷达数据造察觉和重建的一个计划与基于大楼的一个面向对象的方法被介绍“语义规则。二关键步被讨论：怎么组织分离激光雷达点进单个目标并且怎么建立大楼“语义规则。最后，大楼在3D形式和三个普通参量的大楼模型被重建(扁平，gabled，hipped)被实现。

简介：Researchontheseismicvulnerabilityofbuildingstructuresisveryimportantfortheworkofearthquakedisasterpreparednessandmitigation.Onthebasisoftherelatedstudiesoveralongtime,thispaperprovidesseveralseismicvulnerabilitymatricesofbuildingstructureindifferentregionsofSichuanProvince,Pooranti-seismiccapabilityisoneofthefactorsresultingintheearthquakedisastersinthepast.Wecanreduceeconomiclossescausedbyearthquakethroughimprovingtheanti-seismicandpreventionlevelofbuildingstructuresinSichuanProvince.

简介：Thispaperpresentsafieldbasedmethodtodealwiththedisplacementofbuildingcluster,whichisdrivenbythestreetwidening.Thecompressofstreetboundaryresultsintheforcetopushthebuildingmovinginsideandtheforcepropagationisadecayprocess.Todescribethephenomenonabove,thefieldtheoryisintroducedwiththerepresentationmodelofisoline.OnthebasisoftheskeletonofDelaunaytriangulation,thedisplacementfieldisbuiltinwhichthepropagationforceisrelatedtotheadjacencydegreewithrespecttothestreetboundary.Thestudyoffersthecomputationofdisplacementdirectionandoffsetdistanceforthebuildingdisplacement.Thevectoroperationisperformedonthebasisofgradeandotherfieldconcepts.

简介：Addingdampersisacommonlyadoptedseismicriskmitigationstrategyformodernbuildings,andthecorrespondingdesignprocedureofdampershasbeenwellestablishedbytheChineseBuildingCode.Eventhoughalltypesofdampersaredesignedbythesameprocedure,actualseismicperformanceofthebuildingmaydifferfromonetotheothers.Inthisstudy,anine-storybenchmarksteelbuildingisestablished,andthreedifferentandtypicaltypesofdampersaredesignedaccordingtotheChineseBuildingCodetorealizestructuralvibrationcontrolunderstrongearthquakeexcitation.Theseismicresponseoftheprototypebuildingequippedwithaviscoelasticdamper,viscousdamperandbuckling-restrainedbrace(BRB)subjectedto10earthquakerecordsarecalculated,andIncrementalDynamicAnalysis(IDA)isperformedtodescribeprogressivedamageofthestructureunderincreasingearthquakeintensity.Intheperspectiveoffragility,itshowsthattheviscoelasticdamperhasthehighestcollapsemarginratio(CMR),andtheviscousdamperprovidesthebestdriftcontrol.BoththeBRBandviscoelasticdamperscaneffectivelyreducetheflooraccelerationresponsesinthemid-risebuilding.

简介：一种普通情形在象地震那样的灾难期间是地点上的损坏地侦察的活动是不协调得好的。例如在意大利，对在地震以后的结构的损坏评价从意大利的紧急情况权威被管理，用被产生在填写并且转到灾难管理起作用的中心的表格的很多混乱的地点上的专家填写的打印表格(豹脚蚊)。因为这，论文探索使用活动通讯技术(聪明的电话)和网开发将在主要灾难以后帮助社区的反应系统的生存能力，提供为允许上载并且散布信息的居民和应答者的隧道，与协调损坏域侦察的结构的损坏有关。能被居民在聪明的电话上运用的一个活动应用程序被开发了，到当时，给起始的损坏区域的评估，它将很有用资源(例如专家的数字被限制)。活动应用程序在2012Emilia地震期间第一次被测试了提高紧急情况反应，显示出在把建议过程与标准过程作比较的统计术语的建议方法的效率。

简介：Inhighseismiczoneregions,slenderreinforcedconcretestructuralwallsarecommonlyusedinhigh-risebuildingsasamainlateralloadresistingelement.Thesewallsareveryeffectiveinlimitingthelateraldriftofthebuildingduetotheirlargein-planestiffness.However,thepresenceoffloorslabsinfluencesthebehavioroftheshearwall.Also,thecurrentdesignrequirementsdonotaccountforthepresenceoffloorslabs.Tounderstandthebehaviorofwall-slabjunctionsandaddresstheshortcomingsofthecurrentdesignrequirements,theinfluenceoftwoparameters,namely(a)aspectratioand(b)longitudinalreinforcementratioonthebehaviorisstudiednumerically.Itisobservedthatthepresenceoffloorslabsatdifferentlevelstendstopartitionthewallintosquatwallpanelsbetweentwoconsecutivefloors.Thewall-slabjunctionsshowlargestressconcentrationsarisingfromthestrutactioninthesquatpanels.Itisalsoobservedthatthefloorslabscangetsignificantlydamagednearthewall-slabjunctionforlowerverticalreinforcementratiosinthewall.Thus,thecurrentcodeprescribedminimumreinforcementinshearwallsisnotsufficientandneedstoberevisitedatforimprovedperformance.

简介：在这份报纸，组织上，大楼的特征被也就是，使用二个质地描述符确定方形的根对差别(SRPD)并且官方补给*。然后，一个新奇方法，基于SRPD并且官方补给*，到在从很高的分辨率SAR的城市的区域的摘录大楼区域，图象被介绍。结果证明这个方法有能力在城市的区域把大楼区分开来与复杂特征，它能为印射的土地被采用并且为消除操作提供支持。

简介：在这篇论文，从一座RC框架大楼的回答的时间的特征使遭到了到大余震和WenchuanMs8.0地震被介绍。从主要吃惊的扎根的运动记录从三个附近的车站被获得。加速记录以即时正切的加速被分析T,正常加速N,加速向量|a|的欧几里德几何学的标准，速度向量|ν|，排水量向量|ν|，时间的弯曲κ，κt,和时间的扭转γ和γt。在上述因素和在从广泛的分析获得的深度信息另外的一些之间的运动学的关系的结果被提供并且讨论。

简介：SegmentationandedgeregulationarestudieddeeplytoextractbuildingsfromDSMdataproducedinthispaper.Buildingsegmentationisthefirststeptoextractbuildings,andanewsegmentationmethod-adaptiveiterativesegmentationconsideringratiomeansquare-isproposedtoextractthecontourofbuildingseffectively.Asub-image(suchas50×50pixels)oftheimageisprocessedinsequence,theaveragegraylevelanditsratiomeansquarearecalculatedfirst,thenthresholdofthesub-imageisselectedbyusingiterativethresholdsegmentation.Thecurrentpixelissegmentedaccordingtothethreshold,theaver-agegraylevelandtheratiomeansquareofthesub-image.Theedgepointsofthebuildingaregroupedaccordingtotheazimuthofneighborpoints,andthentheoptimalazimuthofthepointsthatbelongtothesamegroupcanbecalculatedbyusinglineinterpolation.

简介：Thisstudydescribestheseismicperformanceofanexistingfivestoreyreinforcedconcretebuildingwhichrepresentsthetypicalpropertiesoflow-risenon-ductilebuildingsinTurkey.Theeffectivenessofshearwallsandthesteelbracingsinretrofittingthebuildingwasexaminedthroughnonlinearstaticanddynamicanalyses.Byusingthenonlinearstaticanalysis,retrofittedbuildingsseismicperformancesunderlateralseismicloadwerecomparedwitheachother.Moreover,theperformancepointsandresponselevelsoftheexistingandretrofittingcasesweredeterminedbywayofthecapacity-spectrummethoddescribedinATC-40(1996).Forthenonlineardynamicanalysistherecordswereselectedtorepresentwiderangesofdurationandfrequencycontent.Consideringthechangeinthestiffnessandtheenergydissipationcapacities,theperformanceoftheexistingandretrofittedbuildingswereevaluatedintermsofstorydriftsanddamagestates.Itwasfoundthateachearthquakerecordexhibiteditsownpeculiarities,dictatedbyfrequencycontent,duration,sequenceofpeaksandtheiramplitude.Theseismicperformanceofretrofittedbuildingsresultedinlowerdisplacementsandhigherenergydissipationcapacitydependingmainlyonthepropertiesofthegroundmotionsandtheretrofittingstrategies.Moreover,severestructuraldamage(irreparableorcollapse)wasobservedfortheexistingbuilding.However,buildingswithretrofitalternativesexhibitedlowerdamagelevelschangingfromnodamagetoirreparabledamagestates.

简介：Basedonthearchitecturalsurveyprojectof“theChiLinNunneryRedevelopment'inHongKong,thispaperattemptstoinvestigatethetechniquesofbuilding3Ddigitaldocumentoflarge_scaletimberstructureandqualitycontrolduringconstructionbycomputer_based3Dsimulationforthewholeproject.Therewereseveralkeyissuesincludingprimarydataacquisition,3Dmodelinganddisplay,pre_assemblingthetotalbuildingandqualityexamination,etc.Inthispaper,someusefulexperiments,suchasthenewapplicationsofCCDdigitalcameras,imageandgraphprocessingsoftwarepackages(CAD,Photoshop,Photomodeler,Vexcel,etc.)tothearchitecturesarealsopresented.Thesemethodsintroducedinthispaperaresuitableforimageandgraphintegrateddatabasebuildingofcomplicatedarchitectures,andusefulforconvenientlymaintainingandreconstructingtheancientarchitectures.

简介：Thispaperistoadvancesomerelevanttechniquestosetupathree-dimensionalindustrialsurveyingsystemof'buildingblockstype',makinguseoftheelectronictheodolite,standardrulerandportablecomputer.

简介：Thispaperintroducestheprocessofmaking3DvectorscenographofanancientbuildingwithlargequantitiesofdatawiththeaidofAutoCAD,whichdisplaystheeffectofscenerydrawings.ThevitalskillsandtechniqueinvolvedareillustratedthroughtheexampleofPagodaofThousandsofBuddhainChiLinNunneryinHongKong.Thisconstructionwasstartedin1996andfinishedin1999withtheconcretestructureinternalandwoodexternal,imitatingthestyleofbuildingsinTangDynasty.Thus,3Dvectorscenographbecomeavailabletousers.

简介：Withthedevelopmentandimplementationofperformance-basedearthquakeengineering,harmonizationofperformancelevelsbetweenstructuralandnonstructuralcomponentsbecomesvital.Evenifthestructuralcomponentsofabuildingachieveacontinuousorimmediateoccupancyperformancelevelafteraseismicevent,failureofarchitectural,mechanicalorelectricalcomponentscanlowertheperformanceleveloftheentirebuildingsystem.Thisreductioninperformancecausedbythevulnerabilityofnonstructuralcomponentshasbeenobservedduringrecentearthquakesworldwide.Moreover,nonstructuraldamagehaslimitedthefunctionalityofcriticalfacilities,suchashospitals,followingmajorseismicevents.Theinvestmentinnonstructuralcomponentsandbuildingcontentsisfargreaterthanthatofstructuralcomponentsandframing.Therefore,itisnotsurprisingthatinmanypastearthquakes,lossesfromdamagetononstructuralcomponentshaveexceededlossesfromstructuraldamage.Furthermore,thefailureofnonstructuralcomponentscanbecomeasafetyhazardorcanhamperthesafemovementofoccupantsevacuatingbuildings,orofrescueworkersenteringbuildings.Incomparisontostructuralcomponentsandsystems,thereisrelativelylimitedinformationontheseismicdesignofnonstructuralcomponents.Basicresearchworkinthisareahasbeensparse,andtheavailablecodesandguidelinesareusually,forthemostpart,basedonpastexperiences,engineeringjudgmentandintuition,ratherthanonobjectiveexperimentalandanalyticalresults.Often,designengineersareforcedtostartalmostfromsquareoneaftereachearthquakeevent:toobservewhatwentwrongandtotrytopreventrepetitions.Thisisaconsequenceoftheempiricalnatureofcurrentseismicregulationsandguidelinesfornonstructuralcomponents.Thisreviewpapersummarizescurrentknowledgeontheseismicdesignandanalysisofnonstructuralbuildingcomponents,identifyingmajorknowledgegapsthatwillneedtobefilledbyfutureresearch.Furthe