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
When I was still an architecture student, a teacher told me, "We learn more from buildings that fall down than from buildings th
When I was still an architecture student, a teacher told me, "We learn more from buildings that fall down than from buildings th
admin
2017-03-25
29
问题
When I was still an architecture student, a teacher told me, "We learn more from buildings that fall down than from buildings that stand up. " What he meant was that construction is as much the result of experience as of theory. Although structural design follows established formulas, the actual performance of a building is complicated by the passage of time, the behavior of users, the natural elements—and unnatural events. All are difficult to simulate. Buildings, unlike cars, can’t be crash-tested.
The first important lesson of the World Trade Center collapse is that tall buildings can withstand the impact of a large jetliner. The twin towers were supported by 59 perimeter columns on each side. Although about 30 of these columns, extending from four to six floors, were destroyed in each building by the impact, initially both towers remained standing. Even so, the death toll(代价)was appalling—2,245 people lost their lives.
I was once asked, how tall buildings should be designed given what we’d learned from the World Trade Center collapse. My answer was,"Lower. " The question of when a tall building becomes unsafe is easy to answer. Common aerial fire-fighting ladders in use today are 100 feet high and can reach to about the 10th floor, so fires in buildings up to 10 stories high can be fought from the exterior(外部). Fighting fires and evacuating occupants above that height depend on fire stairs. The taller the building, the longer it will take for firefighters to climb to the scene of the fire. So the simple answer to the safety question is "Lower than 10 stories. "
Then why don’t cities impose lower height limits? A 60-story office building does not have six times as much rentable space as a 10-story building. However, all things being equal, such a building will produce four times more revenue and four times more in property taxes. So cutting building heights would mean cutting city budgets.
The most important lesson of the World Trade Center collapse is not that we should stop building tall buildings but that we have misjudged their cost. We did the same thing when we underestimated the cost of hurtling along a highway in a steel box at 70 miles per hour. It took many years before seat belts, air bags, radial tires, and antilock brakes became commonplace. At first, cars simply were too slow to warrant concern. Later, manufacturers resisted these expensive devices, arguing that consumers would not pay for safety. Now we do—willingly.
Why are there still high buildings, or even skyscrapers in many cities?
选项
A、Because they are the symbol of modern time.
B、Because many cities now lack building space.
C、Because high buildings are an important financial source of a city’s budget.
D、Because high buildings represent the level of a country’s science and technology.
答案
C
解析
文章第四段解释说,座60层办公楼的收入和财产税是座10层楼(占地面积相同)的4倍,所以削减楼层的高度,等于削减城市的财政收入。
转载请注明原文地址:https://kaotiyun.com/show/zOGO777K
0
考博英语
相关试题推荐
Inrecentyears,therehasbeenasteadyassaultonsaltfromthedoctors:saltisbadforyou—regardlessofyourhealth.Poli
In1998,aBelgianstudentnamedSachaKleinleftBrusselsandenrolledasafour-yearstudentataU.S.university,graduating
Eversincetheearlydaysofmoderncomputinginthe1940s,thebiologicalmetaphorhasbeenirresistible.Thefirstcomputers—
Thewonderswhichmedicalworkershavealreadybroughtaboutinthediagnosisandtreatmentofdiseasesuggestthatatimemayc
Iwasmostfavorablystruckbytheassurancewithwhichtheboyansweredallmyquestions.
Didhereallyexpecthertosmilenowand______withhisplans,treatallthisdeceptionasnomorethananunusualdiversion?
Inno______shouldyoudothiswithouthelpandadvicefromyourdoctor—restrictingthedietofsmallchildrencanbeverydang
Anumberofresearchershaveexaminedthevariables/strategiesthataffectstudents’learningEnglishasasecondlanguage.This
Thedoctor’s____isthatshe’llsoonbeasgoodasnewifshetakesinsulinandwatchesherdiet.
For50yearstheywereabletoproduceandselltheirgoodsmorecheaplythanothercountriesandthisgavethema_____advantage
随机试题
由经营者自主制定,通过市场竞争形成的价格是由政府价格主管部门或其他有关部门,按照定价权限和范围,规定基准价及其浮动幅度,指导经营者制定价格的是
患者,女性,80岁肿瘤晚期。患者全身极度衰竭,意识有时模糊。为安慰患者,护士与其交流时应使用的距离是
法官李某的下列哪些行为违反了法官职业道德规范?(2010年卷一第89题)
下列属于境外投资重点支持项目正确的是()。
“完全获得标准”是确定货物原产地的重要标准。根据这一标准,完全在一个国家生产或制造的进口货物包括______。
(陕西事业单位2010—110)某部队阅兵,上级要求其组成一个正方形队列。预演时上级要求将现有队形减少一行一列,这样将有35人被裁减。那么,原定参加阅兵士兵有多少人?()
就国家对法的作用来说,能影响以至决定法的形式的最主要的因素是()。
若X和Y均为无符号整数,且X≤Y,则依次执行MOV AX,X和CMP AX,Y指令后,标志位CF和ZF的状态是( )。
在考生文件夹下有一个数据库文件“samp3.accdb”,里面已经设计好表对象“tBorrow”、“tReader”和“tRook”,查询对象“qT”,窗体对象“fReader。”,报表对象“rReader。”和宏对象“rpt”。请在此基础上按以下要求补充
OrderingRoomServiceRoomNo.:【L5】______Whatfordinner:twofreshJuices,oneorangeandone【L6】______,tworoastbeefsandw
最新回复
(
0
)