单层钢结构安装工程中,地脚螺栓(锚栓)尺寸的允许偏差为()。
A:螺栓(锚栓)露出长度+30.0mm,0.0mm
B:螺栓(锚栓)露出长度+20.0mm,0.0mm
C:螺栓(锚栓)露出长度+30.0mm,5.0mm
D:螺纹长度+30.0mm,0.0mm
E:螺纹长度+20.0mm,0.0mm
出自:建筑工程管理与实务