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与受弯构件正截面界限相对受压区高度有关的因素是

单选题
2021-09-02 00:24
A、钢筋强度
B、混凝土强度
C、钢筋及混凝土强度
D、钢筋强度、混凝土强度及截面高度
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正确答案
C

试题解析

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截面尺寸和材料强度一定时,钢筋混凝土受弯构件正截面承载力与受拉区纵筋配筋率的关系是()。 
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