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【多选题】
如图,求图中负筋水平长度及根数(设筋直径为20,其中,混凝土强度为C30保护层为15,支座宽300,居中布置,定尺长度9000,连接绑扎。求:水平分布筋的长度及根数。A.
9170
B.
8970
C.
34
D.
32
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