冷拉热轧钢筋中()级钢筋强度较高,可用做预应力混凝土结构的预应力筋A.Ⅱ B.Ⅲ C.Ⅳ D.Ⅰ

作者: rantiku 人气: - 评论: 0
问题 冷拉热轧钢筋中()级钢筋强度较高,可用做预应力混凝土结构的预应力筋
选项 A.Ⅱ B.Ⅲ C.Ⅳ D.Ⅰ
答案 ABC
解析 冷拉热轧钢筋中冷拉Ⅰ级钢筋适用于非预应力受拉钢筋,冷拉Ⅱ、Ⅲ、Ⅳ级钢筋强度较高,可用做预应力混凝土结构的预应力筋

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