Mitigation of Earthquake Damage of Reinforced Concrete Structures
减轻钢筋混凝土结构的地震损伤
基本信息
- 批准号:14350230
- 负责人:
- 金额:$ 5.89万
- 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:2002
- 资助国家:日本
- 起止时间:2002 至 2003
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
It is well known that a large amount of shear reinforcement enhances the shear capacity and ductility of RC members. Excessive use of reinforcements, however, can become counterproductive in terms of both constructability and economy. The main objective of this study is to examine how controlling the bond of the longitudinal reinforcements can improve seismic performance, such as shear strength and ductility of RC structures. An extensive experimental and analytical investigation was carried out in this study. The experimental study employed fifteen 300 x 300 mm square RC columns tested under reversed cyclic loading. The columns were of six different bond conditions, varying from the perfect bond with the use of ordinary deformed bars, to the perfect unbond. The other test variables included the shear span to depth ratio, the shear to flexural strength ratio, and the length of unbonded region. The results of the experiment revealed that the failure mode at the ultimate state could be changed from shear to flexure by reducing the bond strength of the longitudinal bars. The test results also showed that RC columns reinforced with bond controlled bars had significantly better shear strength and ductility than RC columns reinforced with ordinary bars. Three Dimensional nonlinear finite element analysis was also carried out to verify the enhancement of seismic performance of reinforced concrete bridge piers by controlling bond of longitudinal reinforcement. Proposed analytical method was found to model the global hysteretic behavior and failure mode of unbonded RC piers producing an excellent correlation with that of the experimental results.
大量的抗剪钢筋可以提高钢筋混凝土构件的抗剪承载力和延性。然而,过度使用钢筋会在可施工性和经济性方面产生反作用。本研究的主要目的是探讨如何控制纵向钢筋的粘结可以提高抗震性能,如剪切强度和延性的钢筋混凝土结构。在这项研究中进行了广泛的实验和分析调查。实验研究采用了15个300 × 300 mm方形RC柱,在反复循环荷载下进行试验。柱有六种不同的粘结条件,从使用普通变形钢筋的完美粘结到完美未粘结。其他测试变量包括剪跨深度比,剪切弯曲强度比,和非粘结区的长度。试验结果表明,通过降低纵筋的粘结强度,可以使极限状态下的破坏模式由剪切破坏转变为弯曲破坏。试验结果还表明,与普通钢筋混凝土柱相比,粘结控制钢筋混凝土柱具有更好的抗剪强度和延性。通过三维非线性有限元分析,验证了控制纵筋粘结对钢筋混凝土桥墩抗震性能的提高。提出的分析方法被发现,以模拟整体滞回性能和破坏模式的无粘结钢筋混凝土桥墩产生良好的相关性与试验结果。
项目成果
期刊论文数量(64)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Wael A.Zatar, Hiroshi Mutsuyoshi: "Logical on-line hybrid computer actuator and quasi-static testing schemes of PC columns"International Journal of IT in Architecture Engineering and Construction. Vol.1 Issue 3. 209-224 (2003)
Wael A.Zatar、Hiroshi Mutsuyoshi:“逻辑在线混合计算机执行器和 PC 柱的准静态测试方案”国际建筑工程与施工 IT 杂志。
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Govinda Raj Pandey, Hiroshi Mutsuyoshi, Kiyotaka Sugita, Hiroki Uchibori: "Mitigation of Earthquake Damage of RC Structures by Controlling Bond of Reinforcement"Proceedings of the Japan Concrete Institute. Vol.25,No.2. 1441-1446 (2003)
Govinda Raj Pandey、Hiroshi Mutsuyoshi、Kiyotaka Sugita、Hiroki Uchibori:“通过控制钢筋粘结来减轻 RC 结构的地震损坏”日本混凝土协会论文集。
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Takeshi Maki, Hiroshi Mutsuyoshi: "Seismic Behavior of Reinforced Concrete Piles under Ground"Advanced Concrete Technology. Vol.2 No.1. 49-64 (2004)
Takeshi Maki、Hiroshi Mutsuyoshi:“地下钢筋混凝土桩的抗震性能”先进混凝土技术。
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牧 剛史, 佐々木満範, 睦好宏史, 沖津充紀: "RC杭の復元力特性に及ぼす杭体-地盤間の界面挙動の影響"コンクリート工学年次論文集. Vol.2, No.2. 1129-1134 (2002)
Takeshi Maki、Mitsunori Sasaki、Hiroshi Mutsuyoshi、Mitsunori Okitsu:“桩体与地面之间的界面行为对 RC 桩恢复力特性的影响”《混凝土工程年刊》第 2 卷,第 2 期,第 1129 期。 1134 (2002)
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Wael Zatar, Hiroshi Mutsuyoshi, Yoshito Konishi, Atsushi Mori: "Seismic Behavior of Beams of Reinforced Concrete Highway Frame Structure"Transactions of the Japan Concrete Institute. Vol.23. 207-214 (2002)
Wael Zatar、Hiroshi Mutsuyoshi、Yoshito Konishi、Atsushi Mori:“钢筋混凝土公路框架结构梁的抗震性能”日本混凝土协会汇刊。
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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:
$ 5.89万 - 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:
$ 5.89万 - 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:
$ 5.89万 - 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:
$ 5.89万 - 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:
$ 5.89万 - 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:
$ 5.89万 - 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:
$ 5.89万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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
- 批准号:
12555124 - 财政年份:2000
- 资助金额:
$ 5.89万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
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:
$ 5.89万 - 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:
$ 5.89万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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