慣性接続要素による構造物の風応答制御に関する基礎的研究

摘要

構造物の耐震性向上のためにDynamic Mass Damper（減衰ごまなどとも呼ばれている）の研究が行われている。Dynamic Mass Damperは，慣性接続要素を有し，構造物に対し慣性効果と減衰効果の両効果を与える応答制御装置である。Dynamic Mass Damperに関する既往の研究は，慣性接続要素の地震応答制御に関する基本特性を1質点系モデルで調べたものから，Dynamic Mass Damperを適用した高さ200mを超える超々高層建築物を対象とした試設計にまで及ぶ。%This paper describes fundamental characteristics of wind response control of structures using the inertial mass. The change of mass, damping parameter, natural period, Scruton number are defined using the inertia mass ratio γ. Using a condensation single-degree-of-freedom model of a super high rise building, the response is simulated under white noise and external wind force. From the results, reduced effect of the acceleration response is found. The aerodynamic stability of structures by the inertia mass is investigated by means of modified hybrid vibration technique. It is found out that the inertial mass has effect of aerodynamic stability of structures.