【单选题】【消耗次数:1】
无粘结预应力钢筋的张拉程序通常是:
0→102%σcon
0→103%σcon
0→105%σcon→σcon
0→104%σcon
参考答案:
复制
纠错
相关题目
【单选题】 先张法张拉程序是:0→1.03σcon→σcon锚固或0→1.05σcon锚固。
①  正确
②  错误
【单选题】 先张法张拉程序是:0→1.03σcon→σcon锚固或0→1.05σcon锚固
①  正确
②  错误
【单选题】 采用普通松弛预应力筋时,后张法预应力张拉程序根据所用夹具不同分别采用:0→1.05σcon→σcon锚固或0→1.03σcon
①  正确
②  错误
【判断题】 无粘结预应力混凝土结构通常与先张预应力工艺相结合
①  正确
②  错误
【单选题】 要删除book表中书籍(bookName)是”java”的记录,以下代码正确的是( ) String sql=”delete from book where bookName=?”; PreparedStatement pst=con.preparedStatement(sql); ______________________________ pst.execute();
①  pst.setString(1,”java”);
②  pst.setString(0,”java”);
③  pst.setInt(0,”java”);
④  以上选项都不正确
【单选题】 预应力空心楼板施工中,其预应力张拉方法通常采用:
①  先张法
②  后张自锚法
③  后张法
④  热法
【单选题】 在Java中开发JDBC应用程序时,使用DriverManager类的getConnection()方法 建立与数据源的连接语句为: Connection con = DriverManager.getConnection(“jdbc:odbc:news”); URL连接中的”n ews”表示的是( )
①  数据库中表的名称
②  数据库服务器的机器名
③  数据源的名称
④  用户名
【判断题】 预应力钢筋应力松弛与张拉控制应力大小有关,张拉控制应力越大,松弛越小
①  正确
②  错误
【单选题】 下列哪种是无粘结预应力钢筋的制作方法:
①  套塑料管
②  挤压涂层工艺
③  刷抹
④  冷拔
【单选题】 预应力钢筋应力松弛与张拉控制应力的大小有关,张拉控制应力越大,松弛越小。
①  正确
②  错误
随机题目
【多选题】 婚姻总是受到一定的条件限制,主要包括
①  血缘关系
②  民族
③  宗教信仰
④  阶级
⑤  身体
【单选题】 Areas where students have particular difficulty have been treated ____ particular care.
①  by
②  in
③  under
④  with
【单选题】 James Montgomery is famous for his army ____ posters of World Wars I and II.
①  recruited
②  recruiting
③  recruit
④  recrutation
【单选题】 His parents did not approve of his plan to go and study abroad with a girl they had never met, but he ____ and married her.
①  went against
②  went for
③  went for nothing
④  went ahead
【单选题】 They ____ that the aging population is adding 1 per cent yearly to health service costs.
①  add
②  calculate
③  add to
④  calculate on
【单选题】 Our hopes ___ and fell in the same instant.
①  aroused
②  arose
③  raised
④  rose
【单选题】 In Africa, educational costs are very low for those who are ____ enough to get into universities.
①  ambitious
②  fortunate
③  aggressive
④  substantial
【单选题】 There were some ____ flowers on the table.
①  artificial
②  unnatural
③  false
④  unreal
【单选题】 This is the nurse who ____ to me when I was ill in hospital.
①  accompanied
②  attended
③  entertained
④  shielded
【单选题】 、Although he had looked through all the reference material on the subject, he still found it hard to understand this point and her explanation only ____ to his confusion.
①  extended
②  amounted
③  added
④  turned