【单选题】【消耗次数:1】
关于钢筋冷拉的说法错误的是()
可以控制钢筋冷拉应力对钢筋进行冷拉
可以控制钢筋冷拉率对钢筋进行冷拉
用冷拉应力控制钢筋冷拉,冷拉后,钢筋长短不一,对要求等长或定长的预应力筋难以满足要求
用冷拉应力控制钢筋冷拉,冷拉后屈服点不稳定
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相关题目
【单选题】 冷拉钢筋只能做( )。
①  没有限制
②  受压钢筋
③  受拉钢筋
④  架立筋
【单选题】 钢筋经冷拉后( )。
①  屈服强度提高但塑性降低
②  屈服强度提高但塑性不变
③  屈服强度提高且塑性也提高
④  强度与塑性均降低
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①  正确
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①  应提高抽样试验时的冷拉控制应力
②  视该批钢筋为不合格
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①  正确
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①  正确
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