首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Can Buildings Be Designed to Resist Terrorist Attack? In the aftermath of the terrorist attack on the World Trade Center, st
Can Buildings Be Designed to Resist Terrorist Attack? In the aftermath of the terrorist attack on the World Trade Center, st
admin
2013-11-20
25
问题
Can Buildings Be Designed to Resist Terrorist Attack?
In the aftermath of the terrorist attack on the World Trade Center, structural engineers are trying hard to solve a question that a month ago would have been completely unthinkable: Can buildings be designed to withstand catastrophic blasts inflicted by terrorists?
Ten days after the terrorist attacks on the twin towers, structural engineers from the University at Buffalo and the Multidisciplinary Center for Earthquake Engineering Research(MCEER)headquartered at UB traveled to ground zero as part of a project funded by the National Science Foundation. Visiting the site as part of an MCEER reconnaissance visit, they spent two days beginning the task of formulating ideas about how to design such structures and to search for clues on how to do so in buildings that were damaged but still are standing.
"Our objective in visiting ground zero was to go and look at the buildings surrounding the World Trade Center, those buildings that are still standing, but that sustained damage, " said M. Bruneau, Ph. D. "Our immediate hope is that we can develop a better understanding as to why those buildings remain standing, while our long-term goal is to see whether earthquake engineering technologies can be married to existing technologies to achieve enhanced performance of buildings in the event of terrorist attacks, " he added.
Photographs taken by the investigators demonstrate in startling detail the monumental damage inflicted on the World Trade Center towers and buildings in the vicinity. One building a block away from the towers remains standing, but was badly damaged. "This building is many meters away from the World Trade Center and yet we see a column there that used to be part of that building, " explained A. Whittaker, Ph. D. "The column became a missile that shot across the road, through the window and through the floor.
The visit to the area also revealed some surprises, according to the engineers. For example, the floor framing system in one of the adjacent buildings was quite rugged, allowing floors that were pierced by tons of falling debris to remain intact. "Highly redundant ductile(有延展性的)framing systems may provide a simple , but robust strategy for blast resistance, " he added. Other strategies may include providing alternate paths for gravity loads in the event that a load-bearing column fails. "We also need a better understanding of the mechanism of collapse, " said A. Whittaker. "We need to find out what causes a building to collapse and how you can predict it. "
A. Reinhorn, Ph. D. noted that "Earthquake shaking has led to the collapse of many buildings in the past. It induces dynamic response and extremely high stresses and deformations in structural components. Solutions developed for earthquake-resistant design may be directly applicable to blast engineering and terrorist-resistant design. Part of our mission now at UB is to transfer these solutions and to develop new ones where none exist at present.
The question raised in the first paragraph is one______.
选项
A、that was asked by structural engineers a month ago
B、that is too difficult for structural engineers to answer even now
C、that was never imagined before the terrorist attack
D、that terrorists are eager to find a solution to
答案
C
解析
建筑设计是否能使建筑具有抵御恐怖袭击的性能,是一个月前世界贸易中心受到袭击之前人们从未想过的一个问题。这是第一段的主要内容。所以,只有C是正确答案。
转载请注明原文地址:https://jikaoti.com/ti/NR6sFFFM
本试题收录于:
职称英语理工类B级题库职称英语分类
0
职称英语理工类B级
职称英语
相关试题推荐
Foryoungchildren,gettingdressedisacomplicatedbusiness.
ExerciseWhetherornotexerciseaddstothelengthoflife,itiscommonexperiencethatacertainamountofregularexerci
BreakfastStudiesshowthatchildrenwhoeatbreakfastdobetterinschool.Itdoesn’ttakemuchfurtherthoughttobelieve
TeachingandLearningMedicineAwardTwoscientistswhohavewonpraiseforresearchintothegrowthofcancercellscouldb
EatingPotatoesGivesYourImmuneSystemaBoostEatingpotatoesisnotonlygoodforbowelhealth,butalsoforthewholei
AdaptationofLivingThingsCertainanimalsandplantsdevelopcharacteristicsthathelpthemcopewiththeirenvironmentbe
Thesepaintingsareconsideredbymanytobe(authentic).
Severalwindowshadbeensmashed.
Thereporterwasaccusedofunprofessionalconduct.
随机试题
有关肽键的叙述,错误的是
下列哪种方法可以减少影像的部分容积效应
全口义齿人工牙排列成平衡主要是为了
原发性肾小球疾病临床分类错误的是
依据《职业病防治法》的规定,()有违反本法规定的行为,分别给予警告、责令限期改正、1万元以上30万元以下的罚款、责令停止产生职业病危害的作业,或者提报有关人民政府按照国务院规定的权限给予责令停建、关闭的行政处罚。
某电梯安装工程,经电梯安装公司安装完毕后,电梯安装公司向业主提出了设备试运转申请,经有关单进行了系列试运转后,正式投入使用。[问题]1.设备试运转的目的是什么?2.设备试运转一般按怎样的顺序进行?3.设备空负荷试运转应具备哪些条件?4.联
对国务院部门或者省、自治区、直辖市人民政府的具体行政行为不服的,向做出该具体行政行为的国务院部门或者省、自治区、直辖市人民政府申请行政_____________。对此决定不服的,可以向人民法院提起行政_____________;也可以向国务院申请_____
随着互联网的不断发展,网购、网聊、微信、微博等已经成为人们不可或缺的生活方式。你认为这种生活方式对人们的生活有什么影响,请以“MyPerspectiveonInternet”为题,用英语写一篇短文,谈谈自己的一些想法。要求:(1)内容充实,语言流畅
化学测验试题的语言文字超出学生已有的理解水平,那么该测验属于()
证券组合的收益率序列方差是反映()的指标。
最新回复
(
0
)