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簡介:JOURNALOFWUHANUNIVERSITYOFTECHNOLOGYMATERSCIEDDEC2008917DOI101007/S115950076917XHEALINGEFFECTIVENESSOFCRACKSREHABILITATIONINREINFORCEDCONCRETEUSINGELECTRODEPOSITIONMETHODJIANGZHENGWU1,XINGFENG2,SUNZHENPING1,WANGPEIMING11KEYLABORATORYOFADVANCEDCIVILENGINEERINGMATERIALSOFMINISTRYOFEDUCATION,TONGJIUNIVERSITY,SHANGHAI200092,CHINA2SHENZHENKEYLABORATORYOFCIVILENGINEERINGDURABILITY,SHENZHENUNIVERSITY,SHENZHEN518060,CHINA)ABSTRACTANELECTRODEPOSITIONMETHODANDITSEXPERIMENTALDEVICEFORREHABILITATIONOFCRACKSINREINFORCEDCONCRETEWEREPROPOSEDPOROUSCONCRETEISPROPOSEDTOSIMULATECRACKEDCONCRETE,ANDMASSINCREMENT,PERMEATIONCOEFFICIENTANDSOUNDVELOCITYOFULTRASONICWAVEWEREUSEDTOBEEVALUATINGINDICATORSOFHEALINGEFFECTIVENESSOFCRACKREHABILITATIONINTHISMETHODEFFECTOFCURRENCYDENSITY,CONCENTRATIONOFELECTROLYTESOLUTIONONHEALINGEFFECTIVENESSOFPOROUSREINFORCEDCONCRETESWITHDIFFERENTTOTALVOIDRATIOWASSTUDIEDTHEEXPERIMENTALRESULTSINDICATETHATTHESIMULATIONOFPOROUSCONCRETEFORCRACKSCANREFLECTTHEHEALINGEFFECTIVENESSOFELECTRODEPOSITIONMETHODEFFECTIVELYTOTALVOIDRATIOOFPOROUSCONCRETEHASLITTLEEFFECTONHEALINGEFFECTIVENESSOFELECTRODEPOSITIONATEARLYAGESTHEHIGHERTHECURRENCYDENSITYORCONCENTRATIONOFELECTROLYTESOLUTIONIS,THEHIGHERTHEELECTRODEPOSITIONRATEANDSOUNDVELOCITYINPOROUSCONCRETEARE,ANDTHELOWERTHEPERMEATIONCOEFFICIENTOFPOROUSCONCRETEWILLBEMGOH2CRYSTALSPRODUCEDINHIGHCURRENTDENSITYARELARGE,THINSHEETSHAPEDANDARRANGEDLOOSELYKEYWORDSELECTRODEPOSITIONPOROUSREINFORCEDCONCRETECRACKHEALING1INTRODUCTIONREINFORCEDCONCRETERCISAKINDOFWIDELYUSEDCONSTRUCTIONMATERIALFORBUILDINGS,BRIDGES,HYDRAULICCONSTRUCTIONSANDMARINEPROJECTS,ETCHOWEVER,RCSTRUCTUREWILLUSUALLYGENERATEMICROCRACKSINEVITABLYINTHEIRSERVICELIFEUNDERSURROUNDINGENVIRONMENTEROSION,WHICHREDUCESLOADBEARINGANDDURABILITYOFRCSTRUCTURESGREATLY1SO,ITISNECESSARYTOREHABILITATEORREPAIRTHEMACCORDINGTOREASONSINDUCINGCRACKSANDTHEIRENVIRONMENTCONDITIONS,MANYREPAIRMETHODSSUCHASREINFORCEMENT,ANCHORING,GROUTING,SEALINGANDREPLACEMENTETCAREPROPOSED26HOWEVER,THESEMETHODSSHOWCERTAINLIMITATIONSFORCRACKSINRCSTRUCTURESUNDERWATERENVIRONMENTITISOFGREATPRACTICALSIGNIFICANCETODEVELOPNEWNONDESTRUCTIVEREHABILITATIONMETHODSFORUNDERWATERCONCRETESTRUCTURESELECTRODEPOSITIONMETHODISONEOFNEWDEVELOPEDMETHODSFORREHABILITATIONOFCRACKSINUNDERWATERRC710ITTAKESADVANTAGEOFTHECHARACTEROFRCANDWATERENVIRONMENTCONDITION,PUTSAWEAKDIRECTCURRENTBETWEENREBARINRCSTRUCTURESANDANEXTERNALELECTRODEANANODEANDPRODUCESELECTRODEPOSITSAROUNDREBARINRC,WHICHWILLFORMABARRIERCOATINGOFINORGANICINSOLUBLECOMPOUNDSSUCHASZNO,CACO3ANDMGOH2,ETCINCRACKSANDSURFACES,FILLCRACKSANDSEALSURFACESOFRCINRECENTYEARS,SEVERALSTUDIES7,1014AREREPORTEDONTHETOPICABOUTITSFEASIBILITY,MECHANISMANDEXPERIMENTALCONTROLOFREHABILITATIONOFCRACKSINRCUSINGELECTRODEPOSITIONMETHODHOWTOSIMULATECRACKSINRCINTHELABORATORY,PRESETCRACKSINCONCRETESPECIMENSANDEVALUATEHEALINGEFFECTIVENESSOFCRACKSINRCEFFECTIVELYAREHOTANDDIFFICULTRESEARCHTOPICSOFREHABILITATIONOFCRACKSINRCUSINGELECTRODEPOSITIONMETHODCURRENTLY,THETWOMAINSIMULATINGMETHODSINCLUDINGSPLITTINGANDCRACKINGBYSALTCORROSIONAREPROPOSEDFORPRESETTINGCRACKSINRC7,10,14,WHICHHASSEVERALSHORTCOMINGSSUCHASCRACKRANDOMNESS,OUTOFCONTROLLINGOFWIDTHANDORIENTATIONOFCRACKS,ANDDIFFICULTYINEVALUATINGHEALINGEFFECTIVENESSOFCRACKSUSINGELECTRODEPOSITIONMETHODTHEREFORE,INORDERTOEVALUATEHEALINGEFFECTIVENESSOFCRACKSREHABILITATIONINRCUSINGELECTRODEPOSITIONMETHODEFFECTIVELY,POROUSCONCRETEWITHDIFFERENTTOTALVOIDRATIORECEIVEDSEP12,2007ACCEPTEDMAR9,2008JIANGZHENGWU蔣蔣蔣ASSOCPROFPHDEMAILJZHWTONGJIEDUCNFUNDEDBYTHENATIONALNATURALSCIENCEFOUNDATIONOFCHINA50508029,SHANGHAIPROVINCIALNATURALSCIENCEFOUNDATION05ZR14121ANDOPENFUNDOFSHENZHENKEYLABORATORYOFCIVILENGINEERINGDURABILITYOFSHENZHENUNIVERSITYCED0601萬方數(shù)據(jù)JOURNALOFWUHANUNIVERSITYOFTECHNOLOGYMATERSCIEDDEC200891924TESTINGMETHODSTHEAPPARENTDENSITYOFPOROUSCONCRETEWASMEASUREDBYAVOLUMETESTINGMETHODTHEPOROUSSPECIMENSWITHTHEDIMENSIONSOF100MM100MM100MMWEREKEPTINDRYAIRFOR5HAFTERBEINGTAKENOUTOFTHECURINGROOM,WHICHMADETHEMREACHSATURATEDSURFACE–DRYCONDITIONSTHENTHEIRMASSANDDIMENSIONSWERETESTEDTHEMEASUREMENTACCURACYOFTHEDIGITALWEIGHTINGSCALEREACHED±1GANDTHEDIMENSIONMEASUREMENTACCURACYOFTHEVERNIERCALIPERREACHED±01MMACCORDINGTOTHEMASSANDVOLUMEOFSPECIMENS,THEAPPARENTDENSITYOFPOROUSCONCRETEWASCALCULATEDOUTTHREESPECIMENSWEREMEASUREDINEACHGROUPANDTHEIRAVERAGEWASCONSIDEREDASTHEAPPARENTDENSITYOFPOROUSCONCRETEPOROUSRCSPECIMENSWITHTHEDIMENSIONSOF100MM100MM200MMWEREUSEDTOMEASURETHEMASSINCREMENTOFPOROUSRCSPECIMENAFTERELECTRODEPOSITIONTHEMASSOFPOROUSRCSPECIMENSWASMEASUREDAFTERGIVENHEALINGAGESMEASUREMENTMETHODOFMASSINCREMENTOFPOROUSRCSPECIMENSWASSIMILARTOTHEMEASUREMENTOFAPPARENTDENSITYOFPOROUSCONCRETETVRWASOBTAINEDBYDIVIDINGTHEDIFFERENCEBETWEENTHEWEIGHTM1OFTHESPECIMENSINTHEWATERANDTHATM2MEASUREDFOLLOWINGAIRDRYINGFOR24HBYTHESPECIMENVOLUMETHEWEIGHTOFSPECIMENSWASMEASUREDBYAPOINTERTENSIONDYNAMOMETERANDITSACCURACYREACHES1GSIZESOFSPECIMENSWEREMEASUREDBYAVERNIERCALIPERANDITSMEASUREMENTACCURACYOFSIZEREACHED1MMTHEEQUATIONUSEDTOOBTAINTHETVRISASFOLLOWS1WHERE,AISTHETVROFPOROUSCONCRETE,M1THEUNDERWATERWEIGHTOFSPECIMEN,GM2THEWEIGHTOFSPECIMENDRIEDINAIRFOR24H,GV1THESPECIMENVOLUME,CM3ΡWTHEDENSITYOFWATER,KG/MM3COMPRESSIVESTRENGTHOFPOROUSCONCRETESPECIMENSWASMEASUREDAT7DAYSAND28DAYSINACCORDANCEWITHCHINESETESTSTANDARDGBJ8185THEREISNOSTANDARDMETHODSANDDEVICEFORPERMEATIONCOEFFICIENTMEASUREMENTOFPOROUSCONCRETEINTHEDOMESTICTHEWATERPERMEABILITYTESTINGMETHODFORORDINARYCONCRETEISNOTSUITABLEFORPOROUSCONCRETESO,ANEWTESTINGDEVICEFORPERMEATIONCOEFFICIENTOFPOROUSCONCRETEWASDESIGNEDINTHISEXPERIMENTTHESPECIFICMEASUREMENTDETAILANDCALCULATIONMETHODOFPERMEATIONCOEFFICIENTOFPOROUSCONCRETEWASDESCRIBEDINTHEREF15ULTRASONICWAVEMETHODWASUSEDTOMEASURETHESOUNDVELOCITYOFPOROUSRCSPECIMENBEFOREELECTRODEPOSITIONANDAFTER28DAYSELECTRODEPOSITIONTOEVALUATEHEALINGEFFECTIVENESSOFCRACKSTHESOUNDVELOCITYOFTHREECOUPLESOFPARALLELSPECIMENSURFACESWASTESTEDINORDERTOAVOIDTHEEXPERIMENTALERRORINDUCEDBYREBARINSPECIMENS,THETESTINGPOINTOFULTRASONICPROBEWASLOCATEDINTHEMIDDLEOFEVERYCOUPLEOFPARALLELSURFACESSHOWNINFIG3ACCORDINGTOTHELOCATIONOFREINFORCEMENTCAGEINSPECIMENS,REBARHADNOEFFECTONTESTINGRESULTSMOREOVER,INORDERTOAVOIDTHEINFLUENCEOFMOISTURECONTENTINSPECIMENONTESTINGRESULTS,THESPECIMENSWEREDRIEDINATEMPERATUREOF105±3℃BEFORETESTED3RESULTSANDDISCUSSION31PROPERTIESOFPOROUSCONCRETEWITHDIFFERENTMIXPROPORTIONSASSHOWNINTABLE1,THEPOROSITIESOFPOROUSCONCRETESUCHASAPPARENTDENSITYANDCOMPRESSIVESTRENGTHARERELATEDWITHTVROFPOROUSSPECIMENSTIGHTLYTHEHIGHERTHETVROFPOROUSSPECIMENS,THESMALLERTHEAPPARENTDENSITYOFTHEMISDUETODIFFERENTGRADUATIONCOMPOSITIONOFAGGREGATE,THREESERIESOFPOROUSSPECIMENSHAVEDIFFERENTTVR,WHICHAFFECTSHEALINGEFFECTIVENESSOFREHABILITATIONDIFFERENTLYP2HASTHEHIGHESTTVROF30,P1ISTHELOWESTTVROF133,ANDTVROFP3REACHES20732EFFECTOFDIFFERENTFACTORSONTHEMASSINCREMENTOFPOROUSSPECIMENSAFTERELECTRODEPOSITION321TVRFIG4SHOWSTHEUNITVOLUMEMASSINCREMENTOFSPECIMENSASAFUNCTIONOFHEALINGTIMEWHENCURRENTDENSITYOF05A/M2ANDMGNO32CONCENTRATIONOF005MOL/LISGIVENASITSHOWS,THEUNITVOLUMEMASSINCREMENTOFALLSPECIMENSINCREASESOBVIOUSLYAFTERELECTRODEPOSITIONANDITINCREASESWITHTHEINCREASEOFHEALINGTIMEITVERIFIESTHATELECTRODEPOSITIONISEXISTEDINTHEMACROSCOPICSCALEANDTHEELECTRODEPOSITSAREPRECIPITATEDINTHEPOROUSSPECIMENSTHEMASSINCREMENTOFEACHSERIESISSIMILARINTHEFIRST7DAYSOFHEALINGTHEMASSINCREMENTOFP2ISHIGHERTHANTHOSEOFP1ANDP3AT60DAYSITINDICATESTHATTVRHASLITTLEEFFECTONELECTRODEPOSITIONPROCESSANDPRECIPITATIONATEARLYHEALINGAGES,ANDTHEMASSINCREMENTINCREASESWITHTHEINCREASEOFTVROFPOROUSSPECIMENSATLATERHEALINGAGESITLIESINTHATSPECIMENSWITHLOWTVRAREBLOCKEDBYELECTRODEPOSITSGRADUALLY,ANDSOTHEELECTRODEPOSITIONRATEDECREASES100/1112????????VMMAWΡFIG3THETESTINGPOINTLOCATIONOFULTRASONICWAVEMETHODINSPECIMEN萬方數(shù)據(jù)下載積分: 10 賞幣上傳時(shí)間:2024-03-13頁數(shù): 88人已閱讀
( 4 星級)
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簡介:中文中文3650字,字,2660單詞,單詞,14000英文字符英文字符出處出處TORRICELLIFCM,DES,SARKISSIANC,ETALHYDROPHILICGUIDEWIRESEVALUATIONANDCOMPARISONOFTHEIRPROPERTIESANDSAFETYJUROLOGY,2013,82511821186親水導(dǎo)絲親水導(dǎo)絲評估和比較其性能與安全性評估和比較其性能與安全性FABIOCESARMIRANDATORRICELLI,SHUBHADE,CARLSARKISSIAN,ANDMANOJMONGA目的目的比較10種市售親水導(dǎo)絲的物理和機(jī)械性能方法方法進(jìn)行體外測試評估10種不同的直型親水導(dǎo)絲(5種普通導(dǎo)絲和5種硬導(dǎo)絲)GLIDEWIRE,NICORE,EZGLIDER,HIWIRE與ZIPWIRE。測量所有這10種導(dǎo)絲的頭端穿刺力,頭端彎曲力,桿彎曲力以及在運(yùn)動(dòng)中的摩擦力。采用高倍光學(xué)顯微鏡測量頭端輪廓。結(jié)果結(jié)果GLIDEWIRE穿刺我們的模型所需的力最大(P01)。EZGLIDER,ZIPWIRE和GLIDEWIRE頭端彎曲力最?。≒<001)。GLIDEWIRE桿最硬(P<001)。EZGLIDER和GLIDEWIRE在摩擦力測試中力最大。就硬導(dǎo)絲而言,GLIDEWIRES在穿刺測試中力最大(P≤05)。GLIDEWIRES和EZGLIDERS頭端彎曲力最小。ZIPWIRES和NICORES桿最硬(P≤01)GLIDEWIRES在摩擦測試中力最大(P≤001)。頭端輪廓測試顯示ZIPWIRE,HIWIRES以及EZGLIDERS頭端最圓。結(jié)論結(jié)論每一種導(dǎo)線都有其獨(dú)特的優(yōu)點(diǎn)和缺點(diǎn)。雖然GLIDEWIRE(硬導(dǎo)絲和普通導(dǎo)絲兩種)潤滑性較差,但是其刺穿的可能性最低。GLIDEWIRE和EZGLIDER頭端彎曲的力最小。在腔道泌尿外科手術(shù)過程中選擇正確的導(dǎo)絲可以幫助提高成功率,減少發(fā)病率。當(dāng)通過狹窄的輸尿管段或嵌頓結(jié)石時(shí),可以使用親水性柔韌導(dǎo)絲繞過阻塞,不會(huì)發(fā)生穿孔或創(chuàng)傷。目前存在大量的市售導(dǎo)絲,每個(gè)都有其獨(dú)特的屬性,這些屬性可以影響它們的性能和潛在的發(fā)病率。導(dǎo)絲的功能是在輸尿管撕裂的情況下提供連續(xù)性和作為器械能夠通過的引導(dǎo)。由于術(shù)中對導(dǎo)絲的需求在不同情況下是不一樣的,可以使用各種不同的組成材料、形狀、桿剛性、潤滑性,表面涂層、頭端設(shè)計(jì)和柔韌性的導(dǎo)絲??紤]所有這些屬性是為臨床應(yīng)用選擇合適的導(dǎo)絲的關(guān)鍵。在遇到嚴(yán)重曲折、障礙物或嘗試用普通導(dǎo)絲失敗等復(fù)雜的情況下,親水導(dǎo)絲通常會(huì)被用來幫助疏通通道。這些導(dǎo)絲通常有一個(gè)堅(jiān)實(shí)的鎳鈦或金屬合金核心,以及持久的親水涂層,親水涂層顯著減少了其濕潤時(shí)的摩擦系數(shù)。圖1A穿刺實(shí)驗(yàn);B桿彎曲試驗(yàn);C頭端彎曲試;D摩擦實(shí)驗(yàn)統(tǒng)計(jì)分析導(dǎo)絲被分為2組(普通VS硬),使用單向方差分析來確定各組中的各個(gè)測試的所有導(dǎo)絲之間的統(tǒng)計(jì)學(xué)差異。T檢驗(yàn)用于各試驗(yàn)中的導(dǎo)線之間的成對比較。使用MICROSOFTEXCEL分析工具庫(微軟,華盛頓州雷蒙德市)來分析所收集的數(shù)據(jù)。顯著性被定為P005。結(jié)果所有導(dǎo)絲的直徑為0889毫米,長150厘米,帶3厘米軟頭。單因素方差分析結(jié)果顯示,在所有測試每個(gè)組內(nèi)導(dǎo)絲之間平均力測量有顯著的統(tǒng)計(jì)學(xué)差異(P0001表1)。普通硬導(dǎo)絲普通GLIDEWIRE刺穿我們的模型需要約的力量比其他導(dǎo)絲大約40(0363±0704N),其次是ZIPWIRE(0328±0085N,P340),EZGLIDER(0261±0071N,P06),HIWIRE(0259±0038N,P001),以及NICORE(0257±0048N,P01)。桿彎曲測試表明GLIDEWIRE最硬(0134±0005),明顯比其他導(dǎo)絲需要更大下載積分: 10 賞幣上傳時(shí)間:2024-03-16頁數(shù): 717人已閱讀
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簡介:1中文中文6900字,4900單詞,單詞,25000英文字符英文字符出處出處QUB,BRUNEAUM,LINCH,ETALTESTINGOFFULLSCALETWOSTORYSTEELPLATESHEARWALLWITHREDUCEDBEAMSECTIONCONNECTIONSANDCOMPOSITEFLOORSJJOURNALOFSTRUCTURALENGINEERING,2016,1343364373削弱梁截面節(jié)點(diǎn)和組合樓板的足尺寸二層鋼板剪力墻的實(shí)驗(yàn)BINGQU,SMASCE1MICHELBRUNEAU,MASCE2CHIHHANLIN3ANDKEHCHYUANTSAI4摘要為了測試足尺寸二層削弱梁截面節(jié)點(diǎn)和組合樓板鋼板剪力墻填充墻在地震作用下的可替代性和地震中中間橫梁的反應(yīng),應(yīng)設(shè)計(jì)一個(gè)兩階段的試驗(yàn)。在第一階段,試件進(jìn)行擬動(dòng)力試驗(yàn),用三個(gè)地面運(yùn)動(dòng)逐級遞增的烈度來加載,加載后用新的板來替換原先搭接在剪力墻上的粘結(jié)板,并在第二階段中的擬動(dòng)力試驗(yàn)中用周期荷載加載至破壞。實(shí)驗(yàn)表明修復(fù)后的模型只要邊框沒有遭到嚴(yán)重破壞,整體剛度沒有嚴(yán)重下降則能夠在后面進(jìn)行的地震擬動(dòng)力試驗(yàn)中消耗大量的滯回能量,并且模型有額外的變形且展現(xiàn)出來的力和位移的關(guān)系表明兩層的層向位移分別是52和5。將這個(gè)通過擬動(dòng)力實(shí)驗(yàn)和周期加載后的實(shí)驗(yàn)結(jié)果與用拉力控制的雙帶三維有限元模型用建立的PUSHOVER分析(彈塑性分析)得出的結(jié)果有很好的吻合性。CE數(shù)據(jù)庫主題詞剪力墻;鋼板;替代性;周期試驗(yàn);地震設(shè)計(jì);擬動(dòng)力方法引言鋼板剪力墻(SPSW)是由填充鋼板組成,鋼板由邊緣的梁和柱包圍固定。鋼板在剪力作用下允許屈曲,最終形成斜向張力區(qū)。改進(jìn)后的鋼板剪力墻正在逐步被用作在建筑中的橫向主抗側(cè)向力系統(tǒng)(SABELLIANDBRUNEAU2006)。在美國,加拿大,日本,臺(tái)灣等國家和地區(qū)進(jìn)行的鋼板剪力墻測試后,單調(diào)的,循環(huán)的振動(dòng)臺(tái)試驗(yàn)都表明,這種結(jié)構(gòu)體系初始剛度高,在延性變形過程中,消耗掉大量的滯回能量。設(shè)計(jì)新建筑物以及對已有建筑物進(jìn)行加固時(shí),這種結(jié)構(gòu)是一種很好的選擇。(大量的文獻(xiàn)資料可以查閱莎貝尼和布諾2006;伯曼和布諾2003,僅舉幾例)。對鋼板剪力墻分析研究也證實(shí),這種結(jié)構(gòu)對于橫向荷載很有效(THORBURNETAL1983ELGAALYETAL1993DRIVERETAL1997BERMANANDBRUNEAU2003B)。極限狀態(tài)鋼結(jié)構(gòu)設(shè)計(jì)法與鋼結(jié)構(gòu)建筑抗震規(guī)范都提供了鋼板剪力墻的設(shè)計(jì)方法。鋼板剪力墻的創(chuàng)新設(shè)計(jì)提出并實(shí)驗(yàn)證明后,這種結(jié)構(gòu)應(yīng)用范圍擴(kuò)大了。(BERMANANDBRUNEAU2003A,BVIANANDBRUNEAU2005)。然而,這種結(jié)構(gòu)體系存在一定的局限性,以至于它還不能被大眾所接受。例如,涉及到地震作用下可替代的填充鋼板和在剪力墻中間橫梁的抗震性能的不確定性還沒有更深入的研究(中間橫梁就是鋼板上方和下方焊接的區(qū)域,頂部和底部橫梁分別低于或高于鋼板)。這些問題在LOPEZGARCIA和BRUNEAU2006年的實(shí)驗(yàn)中提及。他通過簡單模型,但能研究出中間橫梁的特性,尤其是對削弱梁節(jié)點(diǎn)和復(fù)合混凝土板連接的梁。這種結(jié)構(gòu)體系的特性,對如何最好的設(shè)計(jì)中間橫梁提供了更有用的信息。在考慮了鋼板剪力墻的性能后,為了說明以上這些問題,設(shè)計(jì)了針對有中間橫梁的鋼板剪力墻的兩階段實(shí)驗(yàn)。本實(shí)驗(yàn)還考慮了如何在經(jīng)歷幾次地震后如何更好的換鋼板和經(jīng)修復(fù)后的梁在第二次地震荷載作用下的表現(xiàn)。本文總結(jié)了實(shí)驗(yàn)結(jié)果,得到了極限表現(xiàn),并提3模型的布置在不會(huì)發(fā)生變形的地面上,南北向的液壓伺服加載裝置安放在模型與反力墻之間。用基于極限應(yīng)力加載程序的三個(gè)1000KN加載裝置在每一層來模擬地震周期荷載。附屬桁架系統(tǒng)用于傳遞形成面荷載到底層。為了避免底層鋼板剪力墻產(chǎn)生前后的側(cè)向位移,用兩個(gè)液壓支座把模型邊緣與反力桁架連接在一起。用一根反力梁在每根柱子加載1400KN用來模擬原結(jié)構(gòu)自重。每一根反力梁通過安置在反力梁與固定端在地面的支座將豎向荷載傳遞給地面。實(shí)驗(yàn)的裝置布置如圖2(A和B)。圖2(A)(B)試驗(yàn)裝置實(shí)驗(yàn)裝置還包括在邊框上安置測試儀器,在每根柱的1/4高處安置有單軸應(yīng)變片。在翼緣柱的1/4和3/4處安有雙單應(yīng)變片,這樣主要應(yīng)力均可測得。在每一層豎向反力加載處都設(shè)置有位移計(jì)用以測量加載點(diǎn)位移。用一個(gè)安置在地面與柱子間的位移計(jì)來測量地面在模型加載時(shí)出現(xiàn)的變形。線性位移傳感器安置在北面中,頂橫梁上,在測量層間位移?;诔醪戒摪寮袅δP头治?,線性豎向荷載位移儀器沿對角線的41°放置來獲得填充板的對角伸長(每層12個(gè),每面放6個(gè))。在填充板的中間和底部的梁柱節(jié)點(diǎn)處安置PI測量儀,來測量這些部位的變形。一個(gè)203個(gè)頻道接收這些實(shí)驗(yàn)數(shù)據(jù)。其他未盡事宜可在QU和BRUNEAU2016年提出,TSAI寫于2006年提出的理論找到。在實(shí)驗(yàn)中用5個(gè)錄像機(jī)來記錄模型的整體變形和削弱梁節(jié)點(diǎn)填充板變形。(A)(B)下載積分: 10 賞幣上傳時(shí)間:2024-03-17頁數(shù): 114人已閱讀
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