【判断题】【消耗次数:1】
若要使结构构件的裂缝达到一级或二级要求,必须对其施加预应力,将结构或构件做成预应力混凝土结构构件。
正确
错误
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相关题目
【单选题】 预应力混凝土是在结构或构件的( )预先施加压应力而成。
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②  受拉区
③  中心线处
④  中性轴处
【单选题】 预应力混凝土结构可以避免构件裂缝的过早出现。
①  正确
②  错误
【判断题】 预应力混凝土结构可以避免构件裂缝的过早出现( )。
①  正确
②  错误
【单选题】 预应力混凝土结构可以避免构件裂缝的过早出现( )。
①  正确
②  错误
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①  正确
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【单选题】 先张法预应力混凝土构件是利用( )使混凝土建立预应力的。
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②  张拉钢筋
③  通过端部锚具
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【单选题】 全预应力混凝土构件在使用条件下,构件截面混凝土()。
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②  允许出现拉应力
③  不出现压应力
④  允许出现压应力
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②  允许出现拉应力
③  不出现压应力
④  允许出现压应力
【判断题】 预应力混凝土构件的水泥用量越多,其收缩和徐变引起的预应力损失将越小。
①  正确
②  错误
【单选题】 《混凝土结构设计规范》规定,预应力混凝土构件的混凝土强度等级不应低于()。
①  C30
②  C35
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