下列关于先张法预应力筋张拉程序的选项中,适用于钢筋的是()。A:0→初应力→1.03σcon(锚固)B:0→初应力→1.05σcon→0.9σcon→...

作者: rantiku 人气: - 评论: 0
问题 下列关于先张法预应力筋张拉程序的选项中,适用于钢筋的是()。
选项 A:0→初应力→1.03σcon(锚固) B:0→初应力→1.05σcon→0.9σcon→σcon(锚固) C:0→初应力→σcon(持荷2min锚固) D:0→初应力→1.05σcon(持荷2min)→0→σcon(锚固)
答案 B
解析

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