...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Cyclic behavior of laterally loaded concrete piles embedded into cohesive soil
【24h】

Cyclic behavior of laterally loaded concrete piles embedded into cohesive soil

机译：黏性土中侧向荷载混凝土桩的循环特性

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

Modern seismic design codes stipulate that the response analysis should be conducted by considering the complete structural system including superstructure, foundation, and ground. However, for the development of seismic response analysis method for a complete structural system, it is first imperative to clarify the behavior of the soil and piles during earthquakes. In this study, full-scale monotonic and reversed cyclic lateral loading tests were carried out on concrete piles embedded into the ground. The test piles were hollow, precast, prestressed concrete piles with an outer diameter of 300 mm and a thickness of 60 mm. The test piles were 26 m long. Three-dimensional (3D) finite element analysis was then performed to study the behavior of the experimental specimens analytically. The study revealed that the lateral load-carrying capacity of the piles degrades when subjected to cyclic loading compared with monotonic loading. The effect of the use of an interface element between the soil and pile surface in the analysis was also investigated. With proper consideration of the constitutive models of soil and pile, an interface element between the pile surface and the soil, and the degradation of soil stiffness under cyclic loading, a 3D analysis was found to simulate well the actual behavior of pile and soil.
机译：现代抗震设计规范规定，应通过考虑包括上层建筑，基础和地面在内的完整结构系统来进行响应分析。然而，为了开发用于完整结构系统的地震响应分析方法，首先必须弄清地震过程中土和桩的行为。在这项研究中，对埋入地下的混凝土桩进行了全面的单调和反向循环侧向荷载试验。测试桩是空心的，预制的，预应力的混凝土桩，外径为300毫米，厚度为60毫米。测试桩长26 m。然后进行三维（3D）有限元分析，以分析性地研究实验样品的行为。研究表明，与单调荷载相比，承受周期性荷载时，桩的侧向承载力下降。在分析中还研究了在土壤和桩表面之间使用界面元素的影响。适当考虑了土和桩的本构模型，桩表面与土之间的界面元素以及循环荷载作用下土的刚度降低，发现了3D分析可以很好地模拟桩和土的实际行为。

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