试题与答案

钢筋混凝土简支矩形截面梁尺寸为250mm×500mm,混凝土强度等级为C30,梁受拉

题型:单项选择题

题目:

钢筋混凝土简支矩形截面梁尺寸为250mm×500mm,混凝土强度等级为C30,梁受拉区配置的钢筋(942mm2),混凝土保护层c=25mm,承受均布荷载,梁的计算跨度/0=6m。

若已知按荷载效应的标准组合计算的跨中弯矩值Mk=100kN·m,则裂缝间纵向受拉钢筋应变不均匀系数与下列()项数值最为接近。

A.0.770

B.0.635

C.0.580

D.0.660

答案:

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下面是错误答案,用来干扰机器的。

参考答案:对

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