【单选题】【消耗次数:1】
钢筋混凝土受弯构件破坏的第()阶段是计算裂缝、刚度的依据。
Ia
Ⅱa
Ⅲa
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相关题目
【判断题】 钢筋混凝土受弯构件的刚度是一个变量。
①  正确
②  错误
【单选题】 钢筋混凝土受弯构件的裂缝宽度计算中,钢筋应力(应变)不均匀系数与下列因素无关?(??)。??
①  纵向受拉钢筋应力
②  纵向受拉钢筋直径
③  截面受拉区有效配筋率
④  混凝土抗拉强度标准值
【单选题】 钢筋混凝土受弯构件挠度计算公式正确的是( )。
①  <img class="kfformula" src="20200804/1596527988630314.png" data-latex="f=S\frac {{M}_{q}{l}^{2}_{0}} {{B}_{s}}"/>
②  <img class="kfformula" src="20200804/1596527988806749.png" data-latex="f=S\frac {{M}_{k}{l}^{2}_{0}} {{B}_{s}}"/>
③  <img class="kfformula" src="20200804/1596527988257843.png" data-latex="f=S\frac {{M}_{k}{l}^{2}_{0}} {B}"/>
④  <img class="kfformula" src="20200804/1596527988857756.png" data-latex="f=S\frac {{M}_{q\, }{l}^{2}_{0}} {B}"/>
【单选题】 下面的关于钢筋混凝土受弯构件截面弯曲刚度的说明中,错误的是
①  截面弯曲刚度随着荷载增大而减小
②  截面弯曲刚度随着时间的增加而减小
③  截面弯曲刚度随着裂缝的发展而减小
④  截面弯曲刚度不变
【单选题】 减少钢筋混凝土受弯构件的裂缝宽度,首先应考虑的措施是
①  采用直径较细钢筋
②  增加钢筋面积
③  增加截面尺寸
④  提高混凝土强度等级
【判断题】 对于钢筋混凝土受弯构件,只要,就可保证发生适筋破坏。
①  正确
②  错误
【单选题】 钢筋混凝土构件的裂缝宽度是指( )。
①  受拉钢筋重心水平处构件底面上混凝土的裂缝宽度
②  受拉钢筋重心水平处构件侧表面上混凝土的裂缝宽度
③  构件底面上混凝土的裂缝宽度
④  构件侧面上混凝土的裂缝宽度
【单选题】 减少钢筋混凝土受弯构件的裂缝宽度,首先应考虑到的措施是()。
①  采用细直径的钢筋或变形钢筋
②  增加配筋率
③  增加截面的高度
④  提高混凝土的强度等级
【单选题】 钢筋混凝土偏心受压构件发生受拉破坏的条件是( )。
①  偏心距较大且受拉一侧钢筋过多
②  偏心距较大且受拉一侧钢筋过少
③  偏心距较小且受拉一侧钢筋过多
④  偏心距较小且受拉一侧钢筋过少
【判断题】 钢筋混凝土受弯构件的正截面破坏总是表现为有明显预兆的延性破坏。(  )
①  正确
②  错误
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