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Progressing of Design and Evaluation Method Considering Nonlinearity of Frame and Device Installation Member of Various Passively Controlled Structures

考虑各类被动控制结构框架及装置安装构件非线性的设计与评估方法进展

基本信息

批准号：
16360273
负责人：
KASAI Kazuhiko
金额：
$ 9.41万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360273/
关键词：
PASSIVE CONTROL SYSTEM DAMPER FRAME SUPPORTING MEMBER OF DAMPER NONLINEARITY WOODEN FRMAME STEEL FRAME RC FRAME 制御装置

项目摘要

The objective of the present research is to develop a unified methodology to design/evaluate a variety of passive control systems. The passive dampers considered are oil, viscous, viscoelastic, steel, and friction dampers. The frame materials considered are steel, wood, and concrete. The frame configurations are brace type, shear link type, and others. Numerous combinations of these exist, and the unified methodology provides the following important tools to compare the different systems on a common basis.The research has lead to proposal of seismic performance evaluation method for the passive control system combining the viscous damping and elasto-plastic damping. The method is based on linear seismic response spectra with a special linearization technique for the nonlinear system. In addition, a unique method to predict damping and stiffness as well as hysteretic behavior of the system is proposal. The method utilizes analytical/experimental results of the system without damper or with a rigid element replacing the damper and combining the results with a model of the actual damper to be inserted into the system. The accuracy of the prediction method is demonstrated through experiments on systems involving various dampers and nonlinear timber frames.

本研究的目的是开发一种统一的方法来设计/评估各种被动控制系统。考虑的被动阻尼器有油阻尼器、粘性阻尼器、粘弹性阻尼器、钢阻尼器和摩擦阻尼器。考虑的框架材料有钢、木材和混凝土。框架配置有支撑型、剪切链接型等。存在许多这些组合，统一的方法提供了以下重要的工具，以便在公共基础上比较不同的系统。通过研究，提出了粘滞阻尼和弹塑性阻尼相结合的被动控制系统抗震性能评价方法。该方法基于线性地震反应谱，对非线性系统采用特殊的线性化技术。此外，还提出了一种独特的预测系统阻尼、刚度和滞回特性的方法。该方法利用无阻尼器或用刚性元件代替阻尼器的系统的分析/实验结果，并将结果与要插入系统中的实际阻尼器的模型相结合。通过对包含各种阻尼器和非线性木结构的系统进行试验，验证了该预测方法的准确性。