| 圆钢管超高强混凝土应力-应变关系研究 |
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| 引用本文： | 谢小松,林震宇,徐伟.圆钢管超高强混凝土应力-应变关系研究[J].建筑材料学报,2007,10(4):402-406. |
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| 作者姓名： | 谢小松 林震宇 徐伟 |
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| 作者单位： | 同济大学,土木工程学院,上海,200092;同济大学,土木工程学院,上海,200092;同济大学,土木工程学院,上海,200092 |
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| 摘 要： | 在40根圆钢管超高强混凝土短柱轴压试验研究的基础上,将钢管超高强混凝土视为一新型组合材料,建立其应力-应变关系曲线的理论特征参数(极限强度、平台强度以及峰值应变)计算方法.通过比较发现,现有钢管混凝土的相应计算公式不适用于圆钢管超高强混凝土.最后,推导建立了圆钢管超高强混凝土短柱轴压应力-应变关系的三段式曲线方程,并验证了该方程理论曲线与试验曲线吻合良好.
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| 关 键 词： | 圆钢管 超高强混凝土 应力-应变关系 |
| 文章编号： | 1007-9629（2007）04-0402-05 |
| 收稿时间： | 2006-11-02 |
| 修稿时间： | 2006-11-022006-12-01 |
Study on Stress-Strain Relationship of Super High-Strength Concrete Filled in Circular Steel Tube |
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| XIE Xiao-song,LIN Zhen-yu,XU Wei.Study on Stress-Strain Relationship of Super High-Strength Concrete Filled in Circular Steel Tube[J].Journal of Building Materials,2007,10(4):402-406. |
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| Authors: | XIE Xiao-song LIN Zhen-yu XU Wei |
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| Affiliation: | College of Civil Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | Based on axial compression test of 40 super high-strength concrete filled in circular steel tube,super high-strength concrete with circular steel tube as a composite material was studied.The calculation formulas for theoretical parameters(ultimate strength,plateau strength and peak strain) for super high-strength concrete with circular steel tube are establishad.Through comparing,it is pointed out that the existing calculation formula does not fit to the super high-strength concrete with circular steel tube.A tri-curve equation for stress-strain curves of the super high-strength concrete with circular steel tube is presented and it is in good agreement with the curve obtained from measurements. |
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| Keywords: | circular steel tube super high-strength concrete stress-strain relationship |
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