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# 7.1 轴心受拉构件 - PowerPoint PPT Presentation

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7.1 轴心受拉构件

7.1 轴心受拉构件

7.1 轴心受拉构件

N为轴向拉力的设计值；

fy为钢筋抗拉强度设计值；

As为全部受拉钢筋的截面面积，

7.1 轴心受拉构件

7.2 偏心受拉构件

7.2 偏心受拉构件

7.2 偏心受拉构件

7.2 偏心受拉构件

As和A's应分别≥rminbh，rmin=0.45ft/fy。

7.2 偏心受拉构件

x ≤xb

x≥2a'

7.2 偏心受拉构件

Nu-Mu相关关系

CD段为偏心受拉，其Nu-Mu相关关系基本接近直线。

7.2 偏心受拉构件

7.2 偏心受拉构件

，即斜裂缝贯通全截面，

7.3 偏心受拉构件斜截面受剪承载力计算

7.3 偏心受拉构件斜截面受剪承载力