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
2020-03-30
36
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://jikaoti.com/ti/NgxYFFFM
0
考博英语
相关试题推荐
Thelaserrepresentsatruemarriagebetweenscienceandtechnology,themenwhodeviseditwere______engineersandphysicists.
Operationswhichleftpatients______andinneedoflongperiodsofrecoverytimenowleavethemfeelingrelaxedandcomfortable.
Hadtheexplosionbrokenout,thepassengersintheplaneshouldhavebeenkilled,foritwas______timedwiththeplane’stake-o
【M1】Prosperousalumnihelpedmake2006arecordedfund-raisingyearforcollegesanduniversities,whichhauledin$28billion—a
Theverybiggestandmostmurderouswarsduringtheindustrialagewereintra-industrial-warsthat______SecondWavenationslike
TheGreek’sloftyattitudetowardscientificresearch—andthescientists’contemptofutility—wasalongtimedying.Foramille
Youdon’thavetoinstallthisradioinyournewcar.It’san______extra.
Themomentsomeonebrokeintothefactory,aburglar______ranginthepolicestation.
Thoughthelong-term______cannotbepredicted,theprojecthasbeenapprovedbythecommittee.
We’vejustinstalledafanto______cookingsmellsfromthekitchen.
随机试题
消费税的税率(税额)设计所要考虑的方面。
患者,女性,70岁,久居潮湿之地,症见头身痛重,肩背不可回顾,腰脊难以转侧,苔白脉浮者。治宜选用
处置无形资产净损失、债务重组损失均在()核算。
对于(),不授于专利权。
在接管期间,被接管的保险公司的债权债务关系( )。
某系统采用基于优先权的非抢占式进程调度策略,完成一次进程调度和进程切换的系统时间开销为1μs。在T时刻就绪队列中有3个进程P1、P2和P3,其在就绪队列中的等待时间、需要的CPU时间和优先权如下表所示。若优先权值大的进程优先获得CPU,从T时刻起系统开
关于南、北回归线的叙述,正确的是()、()
某医院始建于1958年,是集医疗、教学、科研和预防保健为一体的国内高水平、大型综合性、现代化的三级甲等医院。该医院拥有骨科、运动医学研究所、妇产科等多个教育部创新团队;拥有辅助生殖、心血管研究所和眼科等多个教育部重点实验室。随着该医院信息化程度的不断提高
下列数据库结构设计中,包含对关系模式进行规范化处理工作的是()。
A、Diamond-producingriversaredisappearingbecauseofclimatechange.B、Diamondcouldn’tbeformedwithoutgreatheatandpress
最新回复
(
0
)