A.樁總數(shù)的1‰ B.樁總數(shù)的2‰ C.樁總數(shù)的3%0 D.取芯樁數(shù)不少于2根 E.取芯樁數(shù)不少于3根
A.5~7 B.3~4 C.9~11 D.15~17
A.張拉應(yīng)力值 B.預(yù)應(yīng)力筋的伸長率 C.總張拉力 D.張拉應(yīng)力及預(yù)應(yīng)力筋伸長值雙控