问题 单项选择题

某24层商住楼,现浇钢筋混凝土部分框支剪力墙结构,如图2-29所示。首层为框支层,层高6.0m,第二至第二十四层布置剪力墙,层高3.0m,首层室内外地面高差0.45m,房屋总高度75.45m。抗震设防烈度8度,建筑抗震设防类别为丙类,设计基本地震加速度0.20g,场地类别Ⅱ类,结构基本自振周期T=1.6s。混凝土强度等级:底层墙、柱为C40(f19.1N/mm,f=1.71N/mm),板C35(f=16.7N/mm,f=1.57N/mm),其他层墙、板为C30(f=14.3N/mm)。首层钢筋均采用HRB400级。

在第③轴底层落地剪力墙处,由不落地剪力墙传来按刚性楼板计算的框支层楼板组合的剪力设计值为3300kN(未经调整)。②~⑦轴处楼板无洞口,宽度15400mm。假定剪力沿③轴墙均布,穿过③轴墙的梁纵筋面积A=10000mm,穿墙楼板配筋宽度10800mm(不包括梁宽)。试问,③轴右侧楼板的最小厚度t(mm)及穿过墙的楼板双层配筋中每层配筋的最小值为下列何项时,才能满足规范、规程的最低抗震要求?()

A.tf=200;12@200

B.tf=200;12@100

C.tf=220;12@200

D.tf=220;12@100

答案

参考答案:C

阅读理解

A woodcutter(伐木工) was working in the forest one day when he found a box full of gold coins. Unfortunately, his wife was the kind of woman who could not keep a secret. Somehow, he knew, he had to prevent(阻止) her from talking about the gold.

He thought about this for a long time, then had an idea.

“ I found something in the forest”, he told his wife, “come with me and I’ll show you.”.His wife followed him into the forest and soon they came to a tree.“ Look at that!” the woodcutter said to his wife, and pointed to the tree. “There’s a fish growing on that branch!” His wife was surprised ,especially when he climbed up the tree and brought down the fish for her to see.They walked on and soon came to the river. “I’ll just pull in my net and see what I’ve caught”, the woodcutter said.

He pulled in his net and inside there were several hares(野兔). “How interesting!” he said “there are now hares in the river.” After that, they came to where the woodcutter had found the box of gold. “Look, wife”, he said “this is what I have found. A box of gold coins.”

The next day, his wife could not stop herself from telling her friends about all the wonderful things she had seen.Of course, nobody believe her!

小题1:Where did the woodcutter find the box of gold?______

A.When he was working

B.In his garden

C.In the forest where he was working

D.On his farm fields, where he was farming小题2:Where do you usually see hares?______

A.In the street.

B.In the forest.

C.In the river.

D.In the sea.小题3:Why did his wife tell her friends what happened? Because ______

A.she was very surprised.

B.she wondered why the hares were in the river and fish was in the tree

C.she could not stop herself from talking about anything

D.she was very happy

单项选择题