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| 混凝土的弹性模量混凝土的应力应变关系并非是线性关系,只有在应力很小时，才接近于直线。因此，混凝土的弹性模量并非是一个常数。为了简化计算,通常取应力-应变曲线图中过原点的曲线的斜率为混凝土的弹性模量，也称原点弹性模量 | |||
| elastic modulus of concrete: 5 phrases in 1 subject |
| Bridge construction | 5 |
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