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
Quake Engineering: Looking at the Turkish Earthquake Damage? Despite the size of the devastating quake that ripped through T
Quake Engineering: Looking at the Turkish Earthquake Damage? Despite the size of the devastating quake that ripped through T
admin
2011-02-11
34
问题
Quake Engineering:
Looking at the Turkish Earthquake Damage?
Despite the size of the devastating quake that ripped through Turkey, American structural engineers say there was something that might have alleviated the damage and saved lives. These images of the devastation in Turkey confirm what seismic engineers already know: that a powerful earthquake has an ally in a weak building. Jim Malley of Degenkolb Engineers, "This is the most common form of multi-story building In Turkey. It’s what we call a concrete frame." Structural engineer Jim Malley studied damaged buildings in Turkey in 1992 after a 6.8 (Richter Scale)quake left more than 600 dead. Jim Malley says, "These are very heavy buildings and it’s not uncommon for them to collapse In earthquakes because of the extra mass. The risk of building collapse increases when the first floor is a shop and glass windows replace brick walls. Undoubtedly, there was a glass store front at this level, and all that came through for the structure, was concrete columns, and that made it much weaker, and as a result we got the collapse of that first story."
Malley says Turkey’s concrete frame buildings often lack reinforcing steel, use too little or use a smooth steel bar that fails to grip the concrete. "We use what’s called deformed bars where there’s little bumps on the steel, which helps to tie the reinforcing steel into the concrete, and smooth bars. it pulls out much more easily."
In California, where each big quake teaches engineers another way of coping, steel frames reduce the weight of new buildings, and strong joints keep them agile.
Janiele Maffei shows a San Francisco skyscraper under construction and says, "The building is designed to move and to sway. and the connections to stay together."
Structural engineer Jardele Maffei says the 1994 Northridge, California quake, revealed the weakness of rigid joints. Engineers found a simple solution, She demonstrates the point by way of the building under way, "See to the right of the connection. See the beam? See how it looks like it’s been tapered? That’s called a dog bone; you can see how it looks like a dog bone, how it’s tapered. What that will do is it will take the stresses away from the connection, and concentrate them in that smaller section of the beam."
Cross bracing up the elevator shaft gives a building brute strength.
Janiele Maffei says, "What steel bracing does, is it connects the various floors, and keeps there from moving relative to each other in an earthquake."
Maffei says Turkish engineers do know how to build for earthquakes and building codes in Turkey are good, at least on paper. But somehow the system failed to produce earthquake resistant buildings
Earthquakes in California have taught people ______.
选项
A、to have panic attacks with strangers
B、ways of coping with construction techniques
C、how to build weak joints
D、to be seismic engineers
答案
B
解析
本题为细节推断题。文章的第三段提到“In California,where each big quake teaches engineers another way of coping,steel frames reduce the weight of new buildings,and strong joints keep them agile.”。我们可以直接得出“加州的地震教会人们如何应对不同的建筑结构”,即选B。
转载请注明原文地址:https://kaotiyun.com/show/AnYO777K
0
专业英语八级
相关试题推荐
A、Virtualglobaleducationsystemwillreplaceuniversityinthefuture.B、Universitywillcontinuetoplayakeyroleinthefu
Alinguistregardsthechangesinlanguageandlanguageuseas______.
Thereiswidespreadbeliefthattheemergenceofgiantindustrieshasbeenaccomplishedbyanequivalentsurgeinindustrialres
AftertheWarofIndependence,Americansdesignedanewsystem.Whatit?
Theswingingsinglelifestyleofthestereotypeismostpossibleforurban,educatedprofessionalandtechnicalpeople.Onlythe
A、ArevolutionaryNASAjetwasdestroyedinitsfirstflight.B、Aboosterrocketveeredoutofcontrolandtumbledtotheground
A、ItbecameofficialbeforePresidentTheodoreRoosevelthaditengraveduponhisstationery.B、Itderivesthenamefromthecol
InEnglishthelettercomhinati6n"mis-"intheword"misunderstand"iscalled______.
Anothercharacteristicsofahigh-mindedmanisnottorushinwhereverhonouristobewon,nortogowhereotherstakethelea
Animalsperformmanyusefulandentertainingjobs.Dogsareparticularlyvaluableguidingtheblind,protectingproperty,
随机试题
小儿的体质特点为
有关大面积烧伤的微粒皮/皮浆移植,以下哪些是正确的
审计机关进行审计时,有权检查被审计单位的会计凭证、会计账簿、会计报表以及其他与财政收支或者财务收支有关的资料和资产。()
下列关于出口商品采用中性包装的叙述,正确的是()。
常温下,下列各组离子能在指定溶液中大量共存的是()。
在追求幸福生活的权利方面,应该是人人平等的。追求个人利益的最大化是每个人的必然选择。离开经济利益,任何人都不能很好地生活下去。离开经济利益的平等,就很难再谈其他利益的平等。我国二元制的户籍结构,在公民经济权利方面,有区别对待的现象存在,对于一个区域内的公民
从管理学上来讲,当失信成本小于失信收益,失信行为有利可图时,市场行为主体有可能选择甚至主动选择失信行为,失信现象就会大量发生;而当失信成本大于失信收益,失信行为无利可图,并可能给行为者带来损失和制裁时,市场行为主体就会根据趋利避害的原则,尽量避免失信行为,
为最大限度减少竞买人之间的恶意串通,________扰乱拍卖市场秩序,一种________网络的拍卖形式正日渐被业界所认可。尤其是在当前拍卖行业竞争激烈的今天,“网络拍卖”凭借阳光、规范的优势正________。依次填入画横线部分最恰当的一项是()
某高校新生入学后进行了专项体检。关于肝功能的检查情况有以下几种判断:(1)所有新生的肝功能都正常。(2)有些新生的肝功能正常。(3)有些新生的肝功能不正常。(4)李刚的肝功能正常。后来经过详细检查,发现以上断定中只有两个正确。以下哪项能够从上文中
程序的并发执行产生了一些和程序顺序执行时不同的特性,下列哪一个特性是正确的?()
最新回复
(
0
)