Experimental and Analytical Studies on Damaging Properties of Ground Motions and Maximum Response Prediction of Reinforced Concrete Structures

地震动破坏特性及钢筋混凝土结构最大响应预测的实验与分析研究

• 批准号: 11450202
• 负责人: INOUE Norio
• 金额: $ 3.9万
• 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: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11450202/
• 关键词: Ground Motion; Damaging Property; Reinforced Concrete; Prediction of Response; Performance Based Design; Pseudodynamic Test; Shaking Table Test; 疑似動的実験; Ground Motion; Damaging Property; Reinforced Concrete; Prediction of Response; Performance Based Design; Pseudodynamic Test; Shaking Table Test; 疑似動的実験

In the performance based earthquake resistant design, the concept is to evaluate appropriately seismic demand and resistant capacity of structures, and to design with considering the performance of buildings. In this study, damaging properties of ground motions and response behavior of buildings are investigated in the viewpoint of energy response. The purpose of this study is to propose the damage evaluation method that can contribute to the performance based design.1. By studies of energy response behavior during earthquakes, it is found that energy based indices such as total input energy, intensity of input energy, duration time of energy input, can evaluate and classify the damaging properties of each ground motion, because energy response is related closely with the damages of buildings.2. A procedure to predict inelastic response displacement of structures by corresponding earthquake input energy to structural dissipated damping and hysteretic energy during a half cycle of response, is proposed. In this procedure, inelastic response displacement can be predicted from elastic response spectrum without inelastic response analysis. Because these energy values are related damaging properties of ground motions and structural properties of buildings, such properties can be taken into prediction procedures or earthquake resistant design more generally by more precise assumptions.3. From the studies of pseudodynamic loading test and shaking table test of reinforced concrete structure specimens subjected to ground motions with different time duration, the differences of damaging properties of ground motion are evaluated by the inelastic response behavior of specimens, such as maximum response displacement, numbers of cyclic response, energy dissipating behavior. And it is found that proposed procedure is considered to be almost suitable as simple prediction method of maximum response displacement.

在基于性能的抗震设计中，概念是评估适当的地震需求和结构的耐药能力，并考虑建筑物的性能。在这项研究中，在能量反应的角度研究了地面运动的破坏性和建筑物的反应行为。这项研究的目的是提出可能有助于基于绩效设计的损坏评估方法1。通过对地震期间能量反应行为的研究，发现基于能量的指标，例如总输入能量，输入能量的强度，能源输入的持续时间，可以评估和分类每个地面运动的损害性能，因为能量响应与建筑物的损害紧密相关。2。提出了一种通过将地震输入能量与结构耗散阻尼和滞后能在半半周期中进行相应的地震输入能量来预测结构无弹性响应位移的程序。在此过程中，无弹性响应频谱可以预测非弹性响应位移，而无需非弹性响应分析。由于这些能量值是地面运动和建筑物的结构特性的相关损害特性，因此可以通过更精确的假设将这些特性更普遍地将其用于预测程序或抗震设计。3。通过研究伪动力载荷测试和摇晃表测试的钢筋混凝土结构标本，受到持续时间不同的地面运动的研究，地面运动的破坏性特性的差异通过标本的无弹性响应行为（例如最大响应移位，循环反应的数量，能量消散行为）来评估。并发现建议的程序被认为几乎是最大响应位移的简单预测方法。