斜拉桥采用混凝土索塔时,对索塔全高竖直度的质量控制目标是( )
A.≤H/1500, 且 ≤15mm B.≤H/1500, 且 ≤30mm C.≤H/3000, 且 ≤15mm D.≤H/3000, 且 ≤30mm正确答案D
斜拉桥采用混凝土索塔时,对索塔全高竖直度的质量控制目标是( )
A.≤H/1500, 且 ≤15mm B.≤H/1500, 且 ≤30mm C.≤H/3000, 且 ≤15mm D.≤H/3000, 且 ≤30mm正确答案D
