...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Construction and Building Materials >Dynamic lateral response of under-reamed vertical and batter piles
【24h】

Dynamic lateral response of under-reamed vertical and batter piles

机译：扩孔垂直和面糊桩的动态横向响应

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Dynamic lateral response of three under-ream reinforced concrete piles constructed in silty sand (vertical, P1 (beta = 0 degrees); and batter piles P2 (beta =10 degrees) and P3 (beta = 20 degrees)) having equal length of 2.5 m, shaft diameter 0.2 m and under-ream bulb of diameter 0.5 m were considered for this experimental study. Dynamic loads were generated using an oscillator motor assembly mounted on top of pile cap and the response of these piles were recorded in real time using three accelerometers placed along the depth of the pile cap. These piles were subjected to varying dynamic load by changing the eccentricity setting of the oscillator in the frequency range of 0-40 Hz. The test results show that the resonant frequency of the soil-pile system decreases; and peak lateral displacement increases with increase in the force level. The variation of rotational stiffness and the damping ratio of the soil-pile system with force level did not follow a clear trend. Thus the presence of an under-ream bulb in a batter pile does not have a significant influence on the lateral behaviour of batter piles. (C) 2017 Elsevier Ltd. All rights reserved.
机译：等长2.5的三根粉砂沙地钢筋混凝土桩（垂直，P1（β= 0度）；面糊桩P2（β= 10度）和P3（β= 20度））的动态横向响应在本实验研究中，我们考虑了轴长为0.2 m的竖井灯泡和直径为0.5 m的扩眼灯泡。使用安装在桩帽顶部的振动电机组件产生动态载荷，并使用沿桩帽深度放置的三个加速度计实时记录这些桩的响应。通过在0-40 Hz的频率范围内更改振荡器的偏心率设置，使这些桩承受了变化的动态载荷。试验结果表明，土-桩系统的共振频率降低。峰值横向位移随力水平的增加而增加。土-桩系统的转动刚度和阻尼比随力水平的变化没有明显的趋势。因此，在面糊堆中存在下部铰接球泡对面糊堆的横向性能没有重大影响。 （C）2017 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号