Energy Based Design of a System Combined of Damper and Displacement Controller for Seismically Exited Structures

地震结构阻尼器和位移控制器组合系统的基于能量的设计

• 批准号: 17360263
• 负责人: INOUE Norio
• 金额: $ 6.41万
• 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: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360263/
• 关键词: Building structure; Earthquake resistance; Response control; Shaking table test; Energy Response; Damper; Displacement controller; Hardening type hysteresis; Building structure; Earthquake resistance; Response control; Shaking table test; Energy Response; Damper; Displacement controller; Hardening type hysteresis

In this study a new device with hardening type hysteresis is proposed, combining fluid damper and displacement controller. This system is effective to control the response of buildings when it is installed in the structures. Two major objectives are described in the following.1. To develop a dual design method to improve habitability under a moderate earthquake and prevent the spread of damage under severe earthquake:In this system when subjected to a moderate earthquake, installed damper consuming energy decreases the response of buildings and improves the habitability. When subjected to a severe earthquake, the displacement controller restrains excessive story displacement while fluid damper consumes energy. This means that the building structure is change from the seismic control system with fluid damper to the normal earthquake resistant system with stiff braces. From this effect spread of structural damages are prevented. The effectiveness of this proposed system is verified by sh … More aking table tests installed in Tohoku University and furthermore investigated by analyses for reinforced concrete buildings considering various conditions.2. To develop a design method to control the response story displacement of a building under severe earthquake:In this system when subjected to severe earthquake, the displacement controller restrains excessive story displacement of the building and controls the distribution of story displacement as designed one. Using this system, unified distribution of story displacement can be obtained by restraining excessive local displacements caused by the irregularity of stiffness and / or strength distribution in a building or the contribution of higher modes. In this study the design method is proposed to calculate necessary damper quantity by energy response, equalizing input energy from earthquake and consuming energy by structures and damper at design displacement level. The effectiveness of this design method is verified by shaking table tests installed in Tohoku University and furthermore investigated by analyses for reinforced concrete buildings considering various conditions such as the distribution of stiffness and / or strength and earthquake characteristics. Less

在这项研究中，提出了一种具有硬化类型滞后的新装置，结合了流体阻尼器和位移控制器。该系统可有效控制建筑物在结构中安装时的响应。下面描述了两个主要对象1。为了开发一种双重设计方法来改善现代地质地震下的可居住性并防止在严重的地质下损害的传播：在经受现代地质地震时，安装的减震器消耗能量会降低建筑物的响应并提高可居住性。当受到严重的地震时，位移控制器会限制多余的故事位移，而流体阻尼器会消耗能量。这意味着建筑物的结构是从具有流体阻尼器的地震控制系统变为具有硬质支架的正常地球抗性系统。从这种效果传播中，可以防止结构性损害的传播。 SH验证了该提出的系统的有效性……TOHOKU University安装了更多的Aking桌子测试，此外，通过分析钢筋混凝土建筑物的分析考虑了各种条件。2。为了开发一种设计方法来控制严重地震下建筑物的响应故事位移：在遭受严重地震的情况下，位移控制器限制了建筑物的过量故事位移，并控制了设计的故事位移的分布。使用该系统，可以通过限制建筑物中刚度和 /或强度分布的不规则性或较高模式的贡献来限制统一的故事位移分布。在这项研究中，提出了设计方法来通过能量响应来计算必要的阻尼量，从而通过结构和设计位移水平的结构和阻尼器来均衡输入能量。通过在Tohoku University中安装的摇晃表测试以及通过分析考虑各种条件（例如刚度和 /或强度和地震特征）的分析，通过摇晃表测试来验证这种设计方法的有效性。较少的