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

本计画旨在发展一种新的黏弹性（或黏滞）阻尼器建筑框架之交互作用设计方法。本项目取得了以下成果：1.本文提出了一种粘弹性阻尼器对剪弯结构模型的优化设计方法。一组设计反应谱协调地震被视为设计地震。该问题规定了粘弹性阻尼器的总数量，并对层间位移的上界进行了约束。层间刚度之和为目标函数。采用梯度投影法作为优化算法.结果表明，将第1项所述的简化模型的优化设计方法与框架的静力优化设计方法相结合，对粘弹性（或粘滞）阻尼器建筑框架的优化设计是有效的。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框架.对设置丙烯酸粘弹阻尼器的三层框架结构模型进行了随机振动台试验。反应控制模型建筑框架是针对谱协调设计地震而设计的。试验和数值模拟结果表明：（1）等效Voigt型模型是丙烯酸粘弹阻尼器的合适模型;（2）包含等效Voigt型模型的框架数值模型精度较高;（3）反应控制设计方法是丙烯酸粘弹阻尼器建筑框架的可靠设计方法。

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.