对于所用的后张法预应力混凝土框架梁及连续梁,需考虑内力重分布,为节约材料,减低造价,支座截面弯矩必须调幅。
查看答案
全预应力混凝土指的是在混凝土构件中受力钢筋全部采用预应力钢筋,非预应力钢筋只起到构造要求或不需配置的构件。
A. 对
B. 错
Have you _____ my shirt?
A. ironing
B. ironed
C. been ironed
D. been ironing
The movie cast and ______ have done a great job.
A. faculty
B. people
C. crew
D. decorator
When I am on the train, I read books to _____.
A. pass the time
B. pass time
C. spend time
D. good time
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