![](https://lstatic.shangxueba.com/jiandati/pc/images/pc_jdt_tittleico.png)
某建筑物第一层现浇楼面有Ll梁,其钢筋保护层厚度定为20mm,断面图及各钢筋(HPB300)的下料情况如下
A.4190mm
B.4238mm
C.4365mm
D.4980mm
(3)编号为②弯起钢筋的下料长度为()。
A.4490mm
B.4654mm
C.4698mm
D.4850mm
(5)编号为④钢筋(135°/135°式)的下料长度为()。(量外包,按箍筋下料调整值计算)A.1090mm
B.1138mm
C.1300mm
D.1480mm
(4)编号为③钢筋的下料长度为()。
A.4390mm
B.4490mm
C.4560m
D.4650mm
(2)编号为②弯起钢筋的量度差合计为(
A.40mm
B.80mm
C.120mm
D.160mm
请帮忙给出每个问题的正确答案和分析,谢谢!
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_panel_vip.png)