预应力张拉程序正确的是（） -题库考试答案搜索网

预应力张拉程序正确的是（）

单选题

2021-12-26 01:11

A、0→1.05σcon
B、0→1.03σcon
C、0→σcon
D、0→1.08σcon（持荷2分钟）→σcon

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正确答案

B

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标签：设备安装工程施工员建筑八大员

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