Experimental study on the dynamic responses of reinforced concrete pipes under continuous lateral impact

被引：0

作者：

Yang J. ^{[1
,2
]}

Hu S. ^{[1
,3
]}

Ye Y. ^{[2
]}

Lou B. ^{[2
]}

Ming P. ^{[2
]}

Wang S. ^{[1
,2
]}

机构：

[1] School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan

[2] Material and Structural Engineering Department, Nanjing Hydraulic Research Institute, Nanjing

[3] School of Civil Engineering, Chongqing University, Chongqing

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 02期

关键词：

Continuous lateral impact; Dynamic response; Reinforced concrete pipe;

D O I：

10.13465/j.cnki.jvs.2022.02.034

中图分类号：

学科分类号：

摘要：

To reveal the failure mechanism of reinforced concrete pipes under continuous lateral impact load, the transverse impact tests of 6 reinforced concrete pipes were completed, taking into account following influential factors: drop hammer height, impact times, and two restraint forms of simply supported and fixed supported. Their influences on the dynamic responses of the concrete pipes under lateral impact were analysed. The prediction formulas for the impact force and mid-span deformation were put forward and fitted with test data. The variation of the peak impact force and mid-span displacement of the pipelines with different impact speed and impact times was investigated. The energy absorption coefficient was used to quantify and evaluate the energy absorption capacity of the pipelines when subjected to lateral impact. The results show that the anti-deformation and anti-damage capability of the fixed-supported constrained pipelines is significantly better than that of the simply-supported constrained specimens. After bearing the action of multiple lateral impacts, the energy absorption coefficient increases, and the impact deformation resistance decreases significantly. © 2022, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：281 / 289and304

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