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A platform for research: civil engineering, architecture and urbanism
STRUCTURE SHAKING TENDENCY EVALUATION METHOD
PROBLEM TO BE SOLVED: To provide an evaluation method for shaking tendency of a structure capable of distinguishing a structure easy-to-get damaged from a structure hard-to-get damaged at earthquake.SOLUTION: The shaking tendency evaluation method includes the steps of: modeling a structure to a vibration model which has a natural period and an attenuation coefficient (J1); calculating a response index of vibration when an earthquake wave for evaluation, in which the ratio of acceleration amplitude is variable, is given to the vibration model (for example, SI value representing spectrum strength) (J2); calculating the ratio of the acceleration amplitude when the response index reaches a predetermined limit value (J3); and acquiring a value of the predetermined vibration parameter which represents the magnitude of the earthquake wave to which the calculated ratio is applied (J4). The evaluation value of the shaking tendency of the structure is determined based on the acquired predetermined vibration parameter value.SELECTED DRAWING: Figure 3
【課題】地震の発生時に被害が生じやすい構造物と被害が生じにくい構造物とを区別可能な、構造物の揺れやすさ評価方法を提供することを目的とする。【解決手段】この揺れやすさ評価方法は、構造物を固有周期と減衰係数とを有する振動モデルにモデル化する工程（Ｊ１）と、加速度振幅の比率を可変にした評価用の地震波を振動モデルに与えたときの揺れの応答指標（例えばスペクトル強度を表わすＳＩ値）を計算する工程（Ｊ２）と、応答指標が予め定められた制限値に達するときの加速度振幅の比率を求め、求められた比率が適用された地震波の強さを表わす所定の振動パラメータの値を取得する工程（Ｊ３、Ｊ４）とを有し、取得された所定の振動パラメータの値に基づいて構造物の揺れやすさの評価値を決定する。【選択図】図３
STRUCTURE SHAKING TENDENCY EVALUATION METHOD
PROBLEM TO BE SOLVED: To provide an evaluation method for shaking tendency of a structure capable of distinguishing a structure easy-to-get damaged from a structure hard-to-get damaged at earthquake.SOLUTION: The shaking tendency evaluation method includes the steps of: modeling a structure to a vibration model which has a natural period and an attenuation coefficient (J1); calculating a response index of vibration when an earthquake wave for evaluation, in which the ratio of acceleration amplitude is variable, is given to the vibration model (for example, SI value representing spectrum strength) (J2); calculating the ratio of the acceleration amplitude when the response index reaches a predetermined limit value (J3); and acquiring a value of the predetermined vibration parameter which represents the magnitude of the earthquake wave to which the calculated ratio is applied (J4). The evaluation value of the shaking tendency of the structure is determined based on the acquired predetermined vibration parameter value.SELECTED DRAWING: Figure 3
【課題】地震の発生時に被害が生じやすい構造物と被害が生じにくい構造物とを区別可能な、構造物の揺れやすさ評価方法を提供することを目的とする。【解決手段】この揺れやすさ評価方法は、構造物を固有周期と減衰係数とを有する振動モデルにモデル化する工程（Ｊ１）と、加速度振幅の比率を可変にした評価用の地震波を振動モデルに与えたときの揺れの応答指標（例えばスペクトル強度を表わすＳＩ値）を計算する工程（Ｊ２）と、応答指標が予め定められた制限値に達するときの加速度振幅の比率を求め、求められた比率が適用された地震波の強さを表わす所定の振動パラメータの値を取得する工程（Ｊ３、Ｊ４）とを有し、取得された所定の振動パラメータの値に基づいて構造物の揺れやすさの評価値を決定する。【選択図】図３
STRUCTURE SHAKING TENDENCY EVALUATION METHOD
構造物の揺れやすさ評価方法
KOBAYASHI KAORU (author)
2018-02-22
Patent
Electronic Resource
Japanese
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