オイルダンパー制板壁を持つ2層木質架構の地震時応答変位の解析的再現と木造用制振壁の評価値の妥当性

摘要

The main objective of this study is to analyze a two-story wood structure consisting of shear wall with oil-damper and rrnstructural plywood wall using time history response analysis. It is important to evaluate the nonlinearity of support members rfor connecting damper and structural frame in wood structure. To evaluate the characteristic of support members, shear load rtests were conducted. The feature for time history analysis is a point taken after the model of series coupling of nonlinear rspring and nonlinear dashpot. First, shear wall with oil-damper was conducted and it was confirmed that numerical model rcorresponded to the test result. Then time history analysis was conducted and test result and numerical model agreed well. rFinally, seismic design value "Equivalent evaluation of shear wall strength" used in evaluating shear wall with dampers for rseismic retrofit in wood structure was also confirmed using Incremental Dynamic Analysis.%以上、本研究ではオイルダンパーを持つ制振壁と構造用合板の耐rn力壁から構成される2層木質架構の振動台実験の結果を追跡する解rn析手法を示し、その妥当性を検証した。さらに、本解析プログラムrnを用いて、「等価壁強さ倍率」の評価法の確からしさを確認した。検rn討の結果を以下にまとめる。