A.0.1%
B.0.2%
C.0.3%
D.0.4%
A.0.1%
B.0.2%
C.0.3%
D.0.4%
A.增加构件的重量
B.提高施工难度
C.防止发生少筋破坏
D.增加构件的造价
A.160mm2
B.180mm2
C.200mm2
D.220mm2
A.0.2%
B.45ft/fy
C.0.2%和45ft/fy的最大值
D.0.2%和45ft/fy的最小值
A.0.005
B.0.01
C.0.015
D.0.02
A.30mm至400mm
B.50mm至350mm
C.60mm至340mm
D.70mm至300mm
A.提高结构刚度
B.防止开裂
C.确保结构稳定性
D.增加构件尺寸
A.5000mm²
B.3000mm²
C.4000mm²
D.6000mm²
A.1000mm²
B.1206mm²
C.1404mm²
D.1608mm²