Development of Earthquake Response Analysis for Whole Structural System Consisting of Ground, Piles and RC Structures

由地基、桩和钢筋混凝土结构组成的整个结构系统的地震响应分析的发展

基本信息

  • 批准号:
    12555124
  • 负责人:
  • 金额:
    $ 5.63万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2000
  • 资助国家:
    日本
  • 起止时间:
    2000 至 2001
  • 项目状态:
    已结题

项目摘要

The objective of this research is to investigate experimentally and analytically the response behavior of reinforced concrete piles under ground by the static and dynamic loading tests. The model specimens of RC piles were fixed to the bottom of the soil box assuming that a real RC pile is fixed at foundations, and the soil box was filled with sand. The pile head was subjected to reversed cyclic lateral loading as seismic load. The experimental parameters were the axial force on the pile head, including the alternative axial force due to rocking behavior of footing, and the connectivity condition at the pile head. The followings are derived conclusions from the experiment and analysis.1) With the increase of the axial force on the pile head, the larger hysteresis loops were observed in the response behavior, and the equivalent damping factor also became high. Additionally, a remarkable reduction of restoring force from its maximum value after yielding of the pile was observed in the case of high axial force.2) The maximum damaged length is independent on the axial load level of the pile and dependent only on the relative stiffness between pile and surrounding soil. The response behavior of the pile with the alternative axial load is determined by the behavior under the maximum and minimum constant axial load. Therefore, the most important point is to evaluate the possible range of axial load on the pile under seismic excitation.3) In order to evaluate the seismic behavior of the whole system of concrete structures including pile foundation, the response analysis method considering the separation of pile and soil was developed, based on 3-dimensional finite element analysis. Analytical results given by the developed method have good agreement with the experimental results.
本研究的目的是借由静载与动载试验,探讨地下钢筋混凝土桩的反应特性。将RC桩模型试件固定在土箱底部,假设一根真实的RC桩固定在基础上,土箱中填充砂。桩顶承受水平反复荷载作为地震荷载。试验参数为桩顶轴力,包括基础摇摆引起的交变轴力和桩顶连通条件。通过试验和分析,得出以下结论:1)随着桩顶轴力的增大,桩的滞回曲线变大,等效阻尼因子也增大。此外,在高轴力作用下,桩身屈服后的恢复力较其最大值有明显减小。2)最大破坏长度与桩身轴力水平无关,仅与桩身与周围土体的相对刚度有关。桩在交变轴力作用下的响应特性由桩在最大和最小恒定轴力作用下的响应特性决定。因此,最重要的是评估桩在地震作用下轴力的可能范围。3)为了评估包括桩基在内的整个混凝土结构体系的抗震性能,基于三维有限元分析,建立了考虑桩土分离的反应分析方法。所发展的方法给出的分析结果与实验结果吻合良好。

项目成果

期刊论文数量(48)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
W.A.Zalar, H.Mutsuyoshi: "Control of Residual Displacement of RC Piers by Prestressing, Modeling of Inelastic Behavior of RC Structures Under Seismic Loads"ASCE. 590-604 (2001)
W.A.Zalar、H.Mutsuyoshi:“通过预应力控制 RC 桥墩的残余位移,地震荷载下 RC 结构非弹性行为的建模”ASCE。
  • DOI:
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    0
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Zatar, W., Mutsuyoshi, H., Konishi, Y., Mori, A.: "Seismic Behavior of Beams of RC Highway Frame Structure"Proceeding of the Japan Concrete Institute. Vol.23, No.3. 1249-1254 (2001)
Zatar, W.、Mutsuyoshi, H.、Konishi, Y.、Mori, A.:“RC 公路框架结构梁的抗震性能”日本混凝土协会会议录。
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    0
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W.A.Zatar, H.Mutsuyoshi, Y.Konishi, A.Mori: "Seismic Behavior of Beams of RC Highway Frame Structure"Proceeding of the Japan Concrete Institute. Vol.23,No.3. 1249-1254 (2001)
W.A.Zatar、H.Mutsuyoshi、Y.Konishi、A.Mori:“RC 公路框架结构梁的抗震性能”日本混凝土协会会议录。
  • DOI:
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    0
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  • 通讯作者:
Maki, T., Mutsuyoshi, H.: "Response Behavior of Reinforced Concrete Piles in Sand Soil, Proceedings of the ICCMC/IBST International Conference on Advanced Technologies in Design"Construction and Maintainance of Concrete Structures, Hanoi, Vietnam. 303-308
Maki, T., Mutsuyoshi, H.:“砂土中钢筋混凝土桩的响应行为,ICCMC/IB​​ST 国际先进设计技术会议论文集”混凝土结构的施工和维护,越南河内。
  • DOI:
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    0
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W.A.Zatar, H.Mutsuyoshi, Y.Konishi, A.Mori: "Seismic Behavior of Beams of RC Highway Frame Structure"Proceedings of the Japan Concrete Institute. Vol.23,No.3. 1249-1254 (2001)
W.A.Zatar、H.Mutsuyoshi、Y.Konishi、A.Mori:“RC 公路框架结构梁的抗震性能”日本混凝土学会论文集。
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MUTSUYOSHI Hiroshi其他文献

MUTSUYOSHI Hiroshi的其他文献

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{{ truncateString('MUTSUYOSHI Hiroshi', 18)}}的其他基金

Maintenance and Long Life Sustainabilty of Prestressed Concrete Bridges
预应力混凝土桥梁的维护和长寿命可持续性
  • 批准号:
    15H04029
  • 财政年份:
    2015
  • 资助金额:
    $ 5.63万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Rational design and construction method of splice considering durability
考虑耐久性的合理接头设计和施工方法
  • 批准号:
    24360176
  • 财政年份:
    2012
  • 资助金额:
    $ 5.63万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Reduction of Chloride Ion in RC Structures by Inverse Diffusion Method
反扩散法还原RC结构中的氯离子
  • 批准号:
    24656266
  • 财政年份:
    2012
  • 资助金额:
    $ 5.63万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Damage to Reinforced Concrete Piers Due To Earthquake After Strengthening
钢筋混凝土桥墩加固后地震损坏情况
  • 批准号:
    21360210
  • 财政年份:
    2009
  • 资助金额:
    $ 5.63万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Shear Cracks of Prestressed Reinforced Concrete Members
预应力钢筋混凝土构件的剪切裂缝
  • 批准号:
    19360199
  • 财政年份:
    2007
  • 资助金额:
    $ 5.63万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Earthquake Response Analysis of Whole Structural System for Reinforced Concrete Structures
钢筋混凝土结构整体结构体系地震反应分析
  • 批准号:
    16360222
  • 财政年份:
    2004
  • 资助金额:
    $ 5.63万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Mitigation of Earthquake Damage of Reinforced Concrete Structures
减轻钢筋混凝土结构的地震损伤
  • 批准号:
    14350230
  • 财政年份:
    2002
  • 资助金额:
    $ 5.63万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Shear Strengthening of RC members
RC 构件的抗剪加固
  • 批准号:
    12650458
  • 财政年份:
    2000
  • 资助金额:
    $ 5.63万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of External Prestressed Concrete with Large Eccentricities and Establishment of Its Design Method
大偏心体外预应力混凝土的研制及其设计方法的建立
  • 批准号:
    10555147
  • 财政年份:
    1998
  • 资助金额:
    $ 5.63万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Seismic Behavior of RC Structures considering the Interaction between Soil and Foundation
考虑土与地基相互作用的RC结构抗震性能
  • 批准号:
    10650447
  • 财政年份:
    1998
  • 资助金额:
    $ 5.63万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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