问题 问答题

(三)  背景资料  某大楼玻璃幕墙工程由A公司承担施工。隐框玻璃幕墙采用的中空玻璃由A公司委托玻璃厂加工,采用两道密封,第一道为丁基热熔密封胶密封,第二道采用聚硫密封胶密封,胶缝尺寸由玻璃加工厂按普通门窗中空玻璃的胶缝尺寸确定。隐框幕墙的玻璃板块由A公司下属加工厂制作,玻璃与铝合金框采用双组份硅酮结构密封胶粘结;半隐框玻璃幕墙采用单片镀膜玻璃,其玻璃面板上墙安装就位后,直接在现场注胶,玻璃的镀膜面朝向室外一侧。  隐框玻璃幕墙的玻璃板块制作时间是2004年10月10日至10月15日,安装时间是同年10月30日至11月10日,板块制作中,按规定做了剥离试验,均合格。  在幕墙构件制作安装前,A公司对隐框和半隐框玻璃幕墙分别制作了试样,委托有资质的检验单位检测三项主要物理性能。根据设计图纸,隐框幕墙立柱跨度有3200mm、3400mm和3600mm三种规格;幕墙除分格高度根据立柱跨度不同按比例有所增减外,其所用主材型号、品种、胶缝尺寸以及作用于幕墙单位面积上的力均相同。A公司的试样是按立柱跨度3400mm制作的。  问题

指出隐框玻璃幕墙所用的中空玻璃加工中的错误,并说明理由和正确的做法。

答案

参考答案:(本小题7分)  (1)隐框玻璃幕墙用的中空玻璃的第二道密封用聚硫密封胶是错误的(2分),因为隐框玻1幕墙的玻璃边暴露在外,而聚硫密封胶耐紫外线能力差(1分)。正确的做法是采用硅酮结构密封胶(1分)。  (2)中空玻璃的胶缝尺寸按普通门窗玻璃胶缝尺寸确定是错误的(1分),因为隐框玻璃幕墙用中空玻璃胶缝是受力结构,不能按普通门窗的胶缝尺寸(1分),正确的尺寸应根据幕墙受力计算确定(1分)。

完形填空
完形填空

    Although it was autumn, the snow was already beginning to fall in Tibet (西藏). Our legs were so
heavy and cold that   1   felt like big pieces of ice. Have you   2   seen snowmen ride bicylces? That's
what we looked like! Along the way children who were   3   long wool coats stopped to look at us.
In the late   4   we found it was so cold that our water bottles froze (结冰). However, the lakes   5  
 like glass in the setting sun and loooked wonderful.
    Wang Wei rode in front of me as usual. She was in high spirt and I knew I didn't need to   6   her.
To climb the mountains was hard work but as we   7   us, we were surprised by the view. We seemed
to be able to see for miles, and we were so high that we found ourselves cycling through clouds. After
a while, we began going   8   the mountains. It was great fun especially as it slowly became much   9  .
At the foot of the mountains, colourful butterflies flew around us and we saw many sheep eating green
grass. Then we had to  10 . Our caps, gloves and trousers for T-shirts and shorts.
    In the early evening we stopped to  11 . We put up our tent and then we ate. Afte supper Wang Wei
went to sleep but I stayed  12 . At midnight the sky became clearer and  13  and the stars grew brighter.
As I  14  below the stars I thought about how far we had already travelled.
    We will reach Dali in Yunan Province soon, where our cousins will join us. We  15  hardly wait to see
them!

( )1. A.we       
( )2. A.never   
( )3. A.dressed in
( )4. A.morning  
( )5. A.shine  
( )6. A.follow  
( )7. A.looked at 
( )8. A.up    
( )9. A.colder  
( )10. A.charge 
( )11. A.make beds
( )12. A.alive   
( )13. A.cloudy   
( )14. A.lie    
( )15. A.may    
B.you            
B.ever       
B.put on      
B.afternoon    
B.shining     
B.encourage    
B.looked after  
B.down       
B.drier       
B.check       
B.make friends  
B.alone       
B.foggy       
B.lied       
B.can        
C.they       
C.even    
C.taken off  
C.evening   
C.shines   
C.remind  
C.looked for
C.around   
C.warmer   
C.chase    
C.make camp   
C.away    
C.noisy    
C.lay     
C.must    
D.it             
D.yet          
D.dressed up     
D.night        
D.shone        
D.discover     
D.looked around           
D.into         
D.wetter         
D.change       
D.make money     
D.awake          
D.quiet          
D.laid           
D.shall        
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