Study on Shear Design of Underground Concrete Structures

地下混凝土结构抗剪设计研究

基本信息

  • 批准号:
    02650329
  • 负责人:
  • 金额:
    $ 1.41万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
  • 财政年份:
    1990
  • 资助国家:
    日本
  • 起止时间:
    1990 至 1991
  • 项目状态:
    已结题

项目摘要

Although many underground concrete structures have been constructed till now, the design of such structures was based on the results of research on the structures on earth. However, it is considered that the underground structures subjected to distributed loads due to earth pressure have more profitable property than the structures with concentrated loads. As the underground structures generally consist of plane members, it is desired that the required strength and ductility will be obtained without shear reinforcement. Furthermore, restraint action of the earth may be expected at the ultimate limit state of the structures. The purpose of this study was to establish reasonable design method for shear of underground concrete structures. To achieve this purpose experiments of reinforced concrete beams with contraflexure point and reinforced concrete slabs were made.The principal results obtained in this study are as follows. 1)Modes of shear failure of reinforced concrete members with contraflexure point can be classified into three types ; (a)diagonal tension failure by a single diagonal crack, (b)diagonal tension failure by two diagonal cracks, and(c)compression failure of concrete in the direction connecting load point and support point. 2)Ultimate strength for failure mode(a)can be calculated by using corresponding shear span. 3)Ultimate strength for mode(b)can be calculated as the larger of the calculated values for each shear span bordering contraflexure point. 4)Contraflexure point has little effect on the ultimate strength for mode(c). 5)Ultimate strength of the member with contraflexure point subjected to distributed or multiple loads can be calculated on the basis of the cumulative damage by each component of shearing forces. 6)The effect of shear reinforcement in plane members varies with the arrangement of the reinforcement.
虽然迄今为止已经建造了许多地下混凝土结构,但这些结构的设计都是基于对地面结构的研究成果。但一般认为,地下结构在土压力作用下承受分布荷载比承受集中荷载更有利。由于地下结构通常由平面构件组成,因此希望在没有抗剪钢筋的情况下获得所需的强度和延性。此外,在结构的极限状态下,可以预期土的约束作用。本研究旨在建立合理的地下混凝土结构抗剪设计方法。为实现这一目的,进行了钢筋混凝土反弯点梁和钢筋混凝土板的试验研究。1)钢筋混凝土反弯点构件的剪切破坏模式可分为三种:(a)单斜裂缝斜拉破坏,(B)双斜裂缝斜拉破坏,(c)荷载点与支承点连接方向的混凝土受压破坏。2)破坏模式(a)的极限强度可通过相应的剪跨计算。3)模式(B)的极限强度可以计算为反弯点边界的每个剪跨的计算值中的较大值。4)反弯点对模式(c)的极限强度影响不大。5)具有反弯点的构件在均布荷载或多重荷载作用下的极限承载力可按各剪力分量的累积损伤计算。6)平面构件中抗剪钢筋的作用随钢筋布置方式的不同而不同。

项目成果

期刊论文数量(15)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Yoshihiro Takahashi: "Effect of Shear Reinforcement in Reinforced Concrete Plane Members" Transactions of JCI. 13. 541-546 (1991)
Yoshihiro Takahashi:“钢筋混凝土平面构件中剪力增强的效应”JCI 交易。
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    0
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高橋 義裕: "RC画部材の厚さ中間部載荷におけるせん断補強効果について" コンクリ-ト工学年次論文報告集. 13巻2号. 221-224 (1991)
Yoshihiro Takahashi:“关于 RC 拉伸构件的中厚度荷载的剪力加固效应”,《混凝土工程年论文集》,第 13 卷,第 221-224 期(1991 年)。
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    0
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Hitoshi Furuuchi: "Shear Strength of Reinforced Concrete Beams with Contraflexure Points" Transactions of JCI. Vol.13. 535-540 (1991)
Hitoshi Furuuchi:“带有反弯点的钢筋混凝土梁的剪切强度”JCI 交易。
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    0
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Yoshihiro Takahashi: "Effect of Shear Reinforcement in Reinforced Concrete Plane Members" Transactions of JCI. Vol.13. 541-546 (1991)
Yoshihiro Takahashi:“钢筋混凝土平面构件中剪力增强的效应”JCI 交易。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
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Hitoshi Furuuchi: "Shear Strength of Reinforced Concrete Beams with Contraflexure Points" Proceedings of JCI. 13, No. 2. 185-190 (1991)
Hitoshi Furuuchi:“带有反弯点的钢筋混凝土梁的抗剪强度”JCI 论文集。
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KAKUTA Yoshio其他文献

KAKUTA Yoshio的其他文献

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{{ truncateString('KAKUTA Yoshio', 18)}}的其他基金

Research on Simply Connection of Members for Mixed Structure
混合结构杆件简单连接研究
  • 批准号:
    14350229
  • 财政年份:
    2002
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Study on FE analysis of damage process due to fatigue loading and shear fatigue strength of RC members in water
钢筋混凝土构件水中疲劳荷载损伤过程及剪切疲劳强度有限元分析研究
  • 批准号:
    11450166
  • 财政年份:
    1999
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B).
Study on Fretting Fatigue of Prestressing Cable at, Deviator
偏向器预应力索微动疲劳研究
  • 批准号:
    10555145
  • 财政年份:
    1998
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Calculational Unified Theory for Calculation of Shear Strength of Linear and Planar Members
线性和平面构件抗剪强度计算的计算统一理论
  • 批准号:
    08455203
  • 财政年份:
    1996
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
DEVELOPMENT OF DESIGN PROCEDURES FOR SUBMERGED FLOATING TUNNELS
水下浮动隧道设计程序的开发
  • 批准号:
    06555128
  • 财政年份:
    1994
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Design Proceduers of Concrete Structures Reinforced with Continuous Fiber Reinforcing Materials
连续纤维增强材料混凝土结构设计规程
  • 批准号:
    04302040
  • 财政年份:
    1992
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Co-operative Research (A)
Clarification of Out-plane Shear Resisting Mechanism of Planer Member and Design
平面构件抗平面剪力机理的阐明及设计
  • 批准号:
    04650414
  • 财政年份:
    1992
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Pull-out Shear Strength of Planar Reinforced Concrete Members
平面钢筋混凝土构件的拉拔剪切强度
  • 批准号:
    63550345
  • 财政年份:
    1988
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

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  • 批准号:
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