问题 单项选择题

某钢筋混凝土柱,截面尺寸为300mm×500mm,混凝土强度等级为C30,纵向受力钢筋为HRB400,纵向钢筋合力点至截面近边缘的距离as=a’s=40mm。

设柱承受的考虑地震作用参与组合后的轴心压力设计值N=1100kN,弯矩设计值M =350kN·m,且已知偏心距增大系数η=1.05,轴向压力作用点至纵向受拉钢筋的合力点的距离e=564mm,则按对称配筋计算而得的纵向受力钢筋As=A’s(mm2)与()项数值最为接近。

A.900

B.954

C.1080

D.1200

答案

参考答案:D

解析:

阅读理解

One day, Wilson was walking quietly along the road when someone hit him hard on the back of his neck.He looked behind him, and saw a young man whom he had never seen before.    

“How dare you hit me like that?” shouted Wilson.    

The young man said he had mistaken Wilson for a friend of his and that he thought Wilson was making a lot of noise about nothing.    

This insult (侮辱) made Wilson even angrier, of course, and he at once decided to bring the young man before a judge.    

Now, the judge, who heard the case, was a friend of the young man’s father’s, and, although he pretended to be quite fair, he was thinking about what he could do to protect the young man from being punished while at the same time not to be appearing unfair.   

Finally he said to Wilson, “I understand your feelings in this matter very well.Would you be satisfied if I let you hit the young man as he hit you?”    

Wilson said he would not be.The young man had insulted him and should be properly punished.    

“Well, then,” said the judge to the young man, “I order you to pay ten coins to Wilson.”    

Ten coins was very little for such a crime, but the young man did not have it with him, so the judge allowed him to go and get it.    

Wilson waited for him to return with the money.He waited an hour, and then two hours, while the judge took care of other business.    

When it was nearly time for the court to close, Wilson chose a moment when the judge was especially busy, came up quietly and hit him hard on the back of the neck.Then he said to him, “I am sorry, but I can’t wait any longer.When the young man comes back, tell him that I have passed my right to the ten coins on to you.”

小题1:Why did the young man hit Wilson from behind?

A.Wilson had hit him before.

B.He had mistaken Wilson for a friend of his.

C.Wilson was a stranger there.

D.Wilson made a lot of noise when he was walking.小题2:Which of the following explanations has the closest meaning with the underlined word “properly”?

A.completely

B.correctly

C.immediately

D.finally小题3:The best title for this passage is ________.

A.I’ve passed my right on to you

B.The judge and Wilson

C.Wilson and the young man

D.The young man was set free

单项选择题