Simultaneous Design Method for Frame-Damper Systems of Building Frames with Energy Absorbing Dampers

吸能阻尼器建筑框架框架-阻尼系统同步设计方法

基本信息

批准号：
11450206
负责人：
UETANI Koji
金额：
$ 3.33万
依托单位：
KYOTO 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 2000
项目状态：
已结题

项目摘要

The purpose of this project is to develop a new interactive design method of building frames with visco-elastic (or viscous) dampers. The following results have been obtained in this project.1. An optimal design method has been proposed for shear-flexural building models with visco-elastic dampers. A set of design response spectrum-compatible earthquakes is treated as the design earthquake. The total amount of visco-elastic dampers is specified and the upper bounds of the seismic interstory drifts are constrained in the problem. The sum of the story stiffnesses is the objective function. The gradient projection method has been employed as the optimization algorithm.2. It has been shown that combination of the optimal design method stated in item 1 for reduced models with the static optimal design method for frames is effective in optimally designing building frames with visco-elastic (or viscous) dampers. This method is computationally efficient and enables designers to design passive-damper frames via an interactive designer-computer system.3. A random shaking table experiment has been conducted for the response-controlled three-story model building frame with acrylic visco-elastic dampers. The response-controlled model building frame is designed for the spectrum-compatible design earthquakes. The experiment and the corresponding numerical simulation demonstrate that (1) an equivalent Voigt-type model is a suitable model of the acrylic visco-elastic damper, (2) the accuracy of the numerical model of a frame including such equivalent Voigt-type model is high and (3) the response-controlled design method is a reliable design method for the building frames with acrylic visco-elastic dampers.

该项目的目的是开发一种新的带有粘弹性（或粘性）阻尼器的建筑框架的交互式设计方法。本课题取得了以下成果： 1．提出了带有粘弹性阻尼器的剪切弯曲建筑模型的优化设计方法。一组与设计反应谱兼容的地震被视为设计地震。问题中指定了粘弹性阻尼器的总量，并约束了地震层间位移的上限。故事刚度的总和是目标函数。采用梯度投影法作为优化算法； 2．事实证明，将第 1 项中所述的简化模型的优化设计方法与框架的静态优化设计方法相结合，可以有效地优化设计带有粘弹性（或粘性）阻尼器的建筑框架。该方法计算效率高，使设计人员能够通过交互式设计计算机系统设计被动阻尼器框架。3．对带有丙烯酸粘弹性阻尼器的响应控制三层模型建筑框架进行了随机振动台实验。响应控制模型建筑框架是为频谱兼容设计地震而设计的。实验和相应的数值模拟表明：（1）等效Voigt型模型是丙烯酸粘弹性阻尼器的合适模型，（2）包含这种等效Voigt型模型的框架数值模型的精度为(3)响应控制设计方法是丙烯酸粘弹性阻尼器建筑框架的可靠设计方法。