RESPONSE PREDICTION OF REINFORCED CONCRETE STRUCTURES CONTROLLED BY ENERGY DISSIPATING DEVICES AND EVALUATION OF NECESSARY AMOUNT OF DEVICES

耗能装置控制的钢筋混凝土结构响应预测及所需装置数量的评估

• 批准号: 14350292
• 负责人: INOUE Norio
• 金额: $ 4.67万
• 依托单位: TOHOKU UNIVERSITY
• 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 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350292/
• 关键词: Energy Dissipating Device; Viscoelastic Damper; Damage Control; Shaking Table Test; Reinforced Concrete Structure; Performance Based Design; Response Prediction; Energy Response; 応答椎定; 鉄筋コンクリート; 性能規定型; Energy Dissipating Device; Viscoelastic Damper; Damage Control; Shaking Table Test; Reinforced Concrete Structure; Performance Based Design; Response Prediction; Energy Response; 応答椎定; 鉄筋コンクリート; 性能規定型

In this study, response prediction procedure was proposed based on concept of energy response by the studies on earthquake response behaviors of reinforced concrete structures controlled by energy dissipating devices. And then, the evaluation method to calculate the amount of devices to limit the earthquake responses within acceptable damages, was proposed. Following results were obtained.A simple prediction method of maximum response of structure by corresponding the earthquake input energy to the structural dissipated energy, was proposed. And by extending this ideas, application to the structures controlled by viscous dampers was shown. In this procedure, damaging properties of earthquakes can be taken into the input energy, and structural properties (damping, hysteresis and so on) can be taken into the dissipated energy, therefore, this response prediction method will be used for various earthquakes and structures.To investigate the dynamic response behaviors and effect of dampers, … More shaking table test was performed to the steel frame specimen with viscoelastic damper. In this specimen, supporting members were applied to investigate the influence of stiffness of supporting braces to damper. And by the simulation analysis of test results, it is found that the four elements dashpot-spring model can simulate the frequency depending characteristics of viscoelastic dampers, and that applied analysis model considering supporting members are appropriate.Proposed response prediction procedure is applied to reinforced concrete structures with viscoelastic damper and multi story reinforced concrete structures with viscous damper, and response displacement can be predicted almost suitably. By the investigation of response velocity, that affects to energy dissipating capacity of viscous or viscoelastic damper, it is found that response velocity can be estimated by response period that is actual vibration period, and that response period relates to the displacement response spectrum of earthquakes. Less

在这项研究中，基于能量反应的概念提出了响应预测程序，这是通过对通过耗散装置控制的钢筋混凝土结构的地震反应行为的研究。然后，提出了计算可接受损害内地震响应的设备量的评估方法。提出了通过将地震输入能量与结构耗散能量相对应相应的最大结构响应的简单预测方法。通过扩展此想法，显示了应用于由粘性阻尼器控制的结构。在此过程中，可以将地震的破坏特性吸收到输入能量中，结构特性（阻尼，滞后等）可以将其吸收到耗散的能量中，因此，该响应预测方法将用于各种地震和结构。用于研究压抑仪的动态响应和效果，……摇桌测试的尺寸更大，对钢板进行了较高的尺寸。在此标本中，使用辅助成员来研究支撑支架对阻尼器的刚度的影响。通过对测试结果的模拟分析，发现四个要素仪表仪模型可以模拟依赖于粘弹性阻尼器的特征的频率，并且应用分析模型认为支持成员的支持响应预测过程适用于耐加固的粘弹性降低和多重响应的混合式粘合性和粘膜结构，将其应用于强化的混凝土结构，并将其用于粘稠的结构。通过研究响应速度的研究，影响粘性或粘弹性阻尼器的能量消散能力，发现响应速度可以通过实际振动周期来估算响应速度，以及对地震位移响应响应范围的响应周期关系。较少的