课题蒙肯纸 职称英语卫生C 新思维 简明英汉词典 第5版Word文档格式.docx
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课题蒙肯纸 职称英语卫生C 新思维 简明英汉词典 第5版Word文档格式.docx
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Canbuildingbedesignedtowithstandcatastrophicblastsinflictedbyterrorists?
Tendaysaftertheterroristattacksonthetwintowers,structuralengineersfromtheUniversityatBuffaloandtheMultidisciplinaryCenterforEarthquakeEngineeringResearch(MCEER)headquarteredatUBtraveledtogroundzer02aspartofaprojectfundedbytheNationalScienceFoundation.VisitingthesiteaspartofanMCEERreconnaissancevisit,theyspenttwodaysbeginningthetaskofformulatingideasabouthowtodesignsuchstructuresandsearchingforcluesonhowtodosoinbuildingstatweredamaged,butstillarestanding3.
"
OurobjectiveinvisitinggroundzerowastogoandlookatthebuildingssurroundingtheWorldTradeCenter,thosebuildingsthatarestillstanding,butthatsustaineddamage4,"
saidM.
Bruneau,Ph.D."
Ourimmediatehopeisthatwecandevelopabetterunderstandingastowhythosebuildingsremainstanding,whileourlong-termgoalistoseewhetherearthquakeengineeringtechnologiescanbemarriedtoexistingtechnologiestoachieveenhancedperformanceofbuildings6intheeventofterroristattacks."
headded.
PhotographstakenbytheinvestigatorsdemonstrateinstartlingdetailthemonumentaldamageinflictedontheWorldTradeCentertowersandbuildingsinthevicinity.Onebuildingablockawayfromthetowersremainsstanding,butwasbadlydamaged."
Thisbuildingismanymetersaway.fromtheWorldTradeCenterandyetweseeacolumntherethatusedtobepartofthatbuilding"
explainedA.Whittaker,Ph.D."
Thecolumnbecameamissilethatshotacrosstheroad,throughthewindowandthroughthefloor."
Thevisittotheareaalsorevealedsomesurprises,accordingtotheengineers.Forexample,thefloorframing8systemsinoneoftheadjacentbuildingswasquiterugged,allowingfloorsthatwerepiercedbytonsoffallingdebristoremainintact9."
Highlyredundantductileframingsystemsmayprovideasimple,butrobuststrategyforblastresistance."
headded.Otherstrategiesmayincludeprovidingalternatepathsforgravityloadsintheevent.thataload-bearingcolumnfails."
Wealsoneedabetterunderstandingofthemechanismofcollapse"
saidA.Whittaker."
Weneedtofindoutwhatcausesabuildingtocollapseandhowyoucanpredictit."
A.Reinhom,Ph.D.notedthat"
earthquakeshakinghasledtothecollapseofmanybuildingsinthepast.Itinducesdynamicresponseandextremelyhighstressesanddeformationsinstructuralcomponents.Solutionsdevelopedforearthquake-resistantdesignmaybedirectlyapplicabletoblastengineeringandterrorist-resistantdesign.PartofourmissionnowatUBistotransferthesesolutionsandtodevelopnewoneswherenoneexistatpresent."
词汇:
aftermath['
ɑ:
ftəmæ
θ]后果,结果withstand[wɪð
'
stæ
nd]经受住
inflict[ɪn'
flɪkt]使遭受,施加reconnaissance[rɪˈkɒnɪsns]勘察;
侦察
inthevicinity附近debris[ˈdeɪbri:
]碎片
intact[ɪn'
tæ
kt]未受损伤的,完整无缺的
ductile[ˈdʌktaɪl]可伸展的,易变形的
注释:
1.intheaftermathof…:
在……(灾难性的事件发生)后的一段时间内。
例如:
intheaftermathoftheSecondWorldWar:
第二次世界大战结束后的时期
2.groundzero:
世界贸易中心(双子塔)被毁现场
3.buildingsthatweredamaged,butstillarestanding:
那些已损坏但未倒塌的建筑
4.butthatsustaineddamage:
但遭到了损坏。
sustain:
蒙受,遭受(伤害或损失)。
5.whetherearthquakeengineeringtechnologiescanbemarriedtoexistingtechnologies:
抗震技术能否与现有的建筑技术相结合。
bemarriedto:
与……相结合。
6.toachieveenhancedperformanceofbuildings:
以提高建筑的性能
7.instartlingdetail:
以令人吃惊的细节
8.thefloorframing:
楼板骨架
9.allowingfloorsthatwerepiercedbytonsoffallingdebristoremainintact:
那些被成吨的残片击穿的楼板得以完整无缺。
练习:
1.Thequestionraisedinthefirstparagraphisone____.
A)thatwasaskedbystructuralertgineersamonthago
B)thatistoodifficultforstructuralengineerstoanswerevennow
C)thatwasneverthoughtofbeforetheterroristattack
D)thatterroristsareeagertofindasolutionto
2.TheprojectfundedbytheNationalScienceFoundation____.
A)wasfirstproposedbysomeengineersatUB
B)tookabouttwodaystocomplete
C)wastoinvestigatethedamagecausedbytheterroristattack
D)wastofindoutwhysomebuildingscouldsurvivetheblasts
3.ThecolumnmentionedbyDr.Whittaker____.
A)waspartofthebuildingclosetotheWorldTradeCenter
B)waspartoftheWorldTradeCenter
C)wasshotthroughthewindowandtheflooroftheWorldTradeCenter
D)damagedmanybuildingsinthevicinityoftheWorldTradeCenter
4.Asurprisingdiscoverymadebytheinvestigatorsduringtheirvisittogroundzeroisthat______.
A)floorsintheadjacentbuildingsremainundamaged
B)somefloorframingsystemsdemonstr
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