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
2014-03-13
23
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(爆炸)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(总部在某地)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(事先考查)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(惊人的)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 column mentioned by Dr. Whittaker______.
选项
A、was part of the building close to the World Trade Center
B、was part of the World Trade Center
C、was shot through the window and the floor of the World Trade Center
D、damaged many buildings in the vicinity of the World Trade Center
答案
A
解析
第四段第三句“This building is many meters away from the World Trade Center and yet,wesee a column there that used to be part of that building…”中的“that building”,指的是上一句中的“One building a block away from the towers”。
转载请注明原文地址:https://kaotiyun.com/show/yoGd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
DriedFoodsCenturiesago,mandiscoveredthatremovingmoisture(51)foodhelpedtopreserveit,andthattheeasiestwaytodot
DriedFoodsCenturiesago,mandiscoveredthatremovingmoisture(51)foodhelpedtopreserveit,andthattheeasiestwaytodot
DriedFoodsCenturiesago,mandiscoveredthatremovingmoisture(51)foodhelpedtopreserveit,andthattheeasiestwaytodot
NativeChineseartworkhasbeenenthusiasticallycollectedandstudiedabroadrecently.
ValuingChildhoodThevalueofchildhoodiseasilyblurred(变得模糊不清)intoday’sworld.Considersomerecentdevelopments:Thechi
AnimalIntelligenceAreAnimalsintelligent?Iftheyare,whichanimalsarethemostintelligent?Thesearenoteasyquestionst
MobilePhoneandDiseasesAstudybyscientistsinFinlandhasfoundthatmobilephoneradiationcancausechangesinhuman
A.GoodresultsB.AnancientskillC.GainingattentionD.MemorytricksE.AlectureonmemorytechniquesF.Waystoimpr
TakingaNapduringtheDayMedicalexpertssaymostAmericansdonotgetenoughsleep.TheysaymoreAmericansneedto【51】
A.Adjustmentofyoungpeople’sstyleB.DisadvantageofcollegeeducationC.WhatfasionisD.TheimportanceofcreativityE.Warni
随机试题
对关系S和R进行集合运算,结果中既包含s中的所有元组也包含R中的所有元组,这样的集合运算称为()。
在Excel2010中,D5单元格中有公式“=A5+$B$4”,删除第3行后,D4单元格中的公式是________。
女性,36岁,已婚。早孕药物流产后反复下腹坠痛5月,B超检查发现盆腔包块1月。妇科检查:子宫后位,正常大小,活动度差,左附件区可扪及一直径约6cm的包块,囊实性,与子宫分界不清,不活动,压痛,最可能的诊断是
诊断为治法为
由图7-58所示数字逻辑信号的波形可知,三者的逻辑关系是()。
假设某银行体系:(1)原始存款总额为100万;(2)法定准备金额为8%;(3)现金漏损率为10%;(4)超额准备金率2%;(5)定期存款准备金率为4%;(6)定期存款总额为20万元。根据以上材料,回答下列问题:对该银行体系存款创造的限制因
关于心理测验,正确的说法包括()。
下列选项中,正确地描述古希腊艺术美特征的是()
在社会主义国家,守法的主体有()
A、Tryingtokeeppacewithyournext-doorneighbors.B、Tryingtokeepincontactwithyourneighbors.C、Tryingtogetalongwell
最新回复
(
0
)