问题 单项选择题 案例分析题

某钢筋混凝土框架结构多层办公楼,安全等级为二级,框架抗震等级为二级。该房屋各层层高均为3.6m,首层地面标高为±0.00m,基础顶面标高为-1.00m,框架柱截面b×h=500mm×500mm,混凝土强度等级为C30,柱纵向钢筋采用HRB335级钢筋(),柱箍筋采用HPB300级钢筋(Φ),as=as′=45mm。说明:已按最新规范将本题“箍筋采用HPB235级钢筋”改成“HPB300级”。

已知各种荷载在底层柱下端截面产生的竖向内力标准值如下:由结构和构配件自重荷载产生的NGk=1430kN;由按等效均布荷载计算的楼面活荷载产生的NQk=340kN,由水平地震作用产生的NEhk=480kN,不考虑其他荷载。试问,该柱的轴压比μ应与以下何项数值最为接近?()

A.0.63

B.0.67

C.0.71

D.0.77

答案

参考答案:C

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完形填空 (共20小题;每小题1.5分,满分30分)

Travel in most of Europe is easy. An agreement between the 15 European Union countries in 1995 means that citizens from most European countries can travel across borders without needing a visa.

Each of the 12 countries that has   36   its own currency (货币) to accept the euro has its own   37  . So how have these countries been able to   38  ? And how has each country prepared for the birth of this new currency? Firstly, many people in Europe,  39  in west Europe, speak English. The European Convention on Human Rights says that all people have a  40  to learn and use their traditional language.

But at the European Central Bank in Frankfurt, Germany, the official language for all business is   41  . And every European country requires students to study English for many years at   42  . Other languages may be offered, too. But English is a   43   .

"If I meet someone, I try Spanish. Then I try   44  . And if it's not   45   , I say "Hello". That' s the signal, and we communicate no matter what country we come from." Said Maria Ortega, a ski instructor in the Pyrenees,   46   French and Spanish are mainly used.

Each country has its own   47   culture. Though the French may be famous for their 1,000 types of cheese and the Greeks are known to  48   olive oil on everything, most people in Europe like  49  strong coffee on their breakfast table. Another drink is held  50  throughout the continent. Europe's vineyards(葡萄园) may be famous, but the real drink of Europe is   51  . Europeans consume tons of it.

Football, of course, also helps to    52    all of Europe. Many fans are obsessed (着迷) with   53   and with international stars. David Beckham, of England' s Manchester United, is a hero to Europeans in the same   54   that Michael Jordan is to   55   .

36. A. given up                    B. ended up          C. agreed with                   D. started with

37. A. money                B. right                             C. border                          D. culture

38. A. meet                          B. unite                            C. travel                            D. accept

39. A. specially         B. generally             C. particularly                  D. normally

40. A. chance                 B. right                             C. wish                              D. place

41. A. French                  B. German                 C. English                     D. Spanish

42. A. school                  B. work                             C. home                            D. table

43. A. subject                 B. tool                         C. need                          D. must

44. A. English                 B. French                    C. German                  D. Greek

45. A. listening                    B. spoken                   C. working                   D. heard

46. A. as                          B. where                     C. since                             D. whose

47. A. food                           B. art                          C. drink                              D. life

48. A. add                             B. spread                    C. spend                            D. put

49. A. a kind of          B. a lot of                  C. a cup of                D. a taste of

50. A. in common       B. in general                C. in need                     D. in special

51. A. beer                           B. wine                             C. coffee                           D. soup

52. A. attract            B. tie                                C. play                          D. watch

53. A. opera                         B. bread                           C. music                            D. football

54. A. direction                   B. level                             C. way                          D. game

55. A. basketballers           B. British              C. athletes   D. Americans