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Experimental study on damage evaluation of stainless steel–reinforced concrete piers under lateral impact
Advances in Mechanical Engineering ( IF 1.9 ) Pub Date : 2020-05-25 , DOI: 10.1177/1687814020924886
Bo Wu 1 , Shixiang Xu 1
Affiliation  

Horizontal impact tests of stainless steel–reinforced concrete piers with different reinforcement ratios at different impact velocities were carried out by using the ultra-high drop weight impact test system. Degree of piers damage after impact was comprehensively analyzed by measuring the acceleration of the impact body, the displacement of the top of the pier specimens, the strain of the steel bars, the rotation of the pier bottom, and the crack development of concrete. The test results showed that under the same impact velocity, with the decrease in reinforcement ratio, the peak acceleration of the impact body, the displacement of the top of pier specimens, the strain of steel bars, and the pier bottom rotation all increase. To a certain extent, increasing the reinforcement ratio of bridge piers can effectively reduce impact damage.



中文翻译:

侧向冲击下不锈钢钢筋混凝土墩柱损伤评估的试验研究

通过使用超高落锤冲击试验系统,对具有不同配筋率的不同强度的不锈钢钢筋混凝土墩进行了水平冲击试验。通过测量冲击体的加速度,桥墩试件顶部的位移,钢筋的应变,桥墩底的旋转以及混凝土的裂缝发展,对冲击后桥墩的损坏程度进行了综合分析。试验结果表明,在相同的冲击速度下,随着配筋率的降低,冲击体的峰值加速度,墩墩试样顶部的位移,钢筋的应变以及墩墩的底部旋转都增加。在一定程度上,提高桥墩的配筋率可以有效减少冲击破坏。

更新日期:2020-05-25
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