![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
梁体混凝土强度达到设计强度的()以上,且能保证构件棱角完整时方可拆模
A.50%
B.60%
C.80%
D.100%
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、60%
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.50%
B.60%
C.80%
D.100%
B、60%
A.吊装就位时,混凝土强度为梁体设计强度的70%
B.吊移板式构件时,不用考虑其哪一面朝上
C.吊绳与起吊构件的交角小于60度时,应设置吊架或吊装扁担
D.预应力混凝土梁构件待孔道压浆强度达到20MPa是才能吊装
A.低强度,750mm
B.高强度,750mm
C.低强度,500mm
D.高强度,500mm