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
59
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
According to the article, what is the most common form of multi-story building in Turkey?
选项
A、Wooden structures.
B、Reinforced concrete single levels.
C、The concrete frame.
D、The dog bone frame.
答案
C
解析
本题为细节推断题。文章第一段提到“This is the most common form of multi-story building in Turkey. It’s what we call a concrete frame.”完全符合题意,土耳其最普通的多层结构建筑式样是钢筋水泥结构,故选C。
转载请注明原文地址:https://kaotiyun.com/show/ynYO777K
0
专业英语八级
相关试题推荐
InT.G,thestructurethatcontainsalltheunitandrelationshipsthatarenecessaryforinterpretingthemeaningofthesenten
Ordinarypeople’slivesaregovernedbyformsandnoticefromthemoment【M1】______heirbirthisregistereduntilthedayth
Alinguistregardsthechangesinlanguageandlanguageuseas______.
Aswellastheproblemsconcernedwithobtaininggoodqualityaudiorecordings,recordingalsoraisesimportanttheoreticalprob
ClocksthroughTimeIttookhumanbeingalongtimetoinventdiversewaysfortellingtime.About3000yearsagopeoplefir
ClocksthroughTimeIttookhumanbeingalongtimetoinventdiversewaysfortellingtime.About3000yearsagopeoplefir
WhichofthefollowingmoviesisbasedonaBritishsetting?
WhichofthefollowingisNOTtrueoftheHundredYearsWar?
IntheAgeofGenetics,younolongerhavetotrytocutoutsmokingorthinktwiceaboutgobblingthatcandybarinyourdeskd
Tracingmissingpersonscantakemuchpatientdetectivework.Butaspecialkindof"privateeye"cantracethemissingancestor
随机试题
急性胆囊炎最严重的并发症是
属于有效训导的方法是
A.双目镜筒中的左右两光束不平行B.不可选用复消色差物镜C.光源是紫外光D.光源是红外光E.物镜、聚光镜和光源颠倒放置偏光显微镜
内部转移价格制定时,单位产品的协商价格的上限是市价,下限是()。
企业国际化经营首要的核心竞争力是()。
“儿童心理发展等于遗传与环境的乘积”。这种观点是()
2007年4月2日,王某与丁某约定:王某将一栋房屋出售给丁某,房价20万元。丁某支付房屋价款后,王某交付了房屋,但没有办理产权移转登记。丁某接收房屋作了装修,于2007年5月20日出租给叶某,租期为2年。2007年5月29日,王某因病去世,全部遗产由其子小
胡锦涛同志指出,马克思主义政党执政成功的前提条件是()。
绝对感受性与绝对感觉阈限之间的关系是()。
YouareinterestedinClassicalMusic,soyoucanWatchTVat______.IfyouWanttoknowaboutprogrammesofnextWeek,Whichchann
最新回复
(
0
)