常時微動から求めた建物の伝達関数が風の影響で見かけ上変化するメカニズムの検討

概要

論文の詳細を見る
System identification using a transfer function obtained from the spectral ratio for buildings during microtremors and with soil-structure interaction has advantages and disadvantages. The advantages are that the vibration modes and dynamic characteristics of the buildings themselves can be obtained under small wind velocity conditions. A disadvantage is that the wind force deforms the spectral ratio. This paper describes a study of this phenomena. Three factors were studied: the existence of upper input forces, simultaneous upper and lower input situation, and relation (dependence or independence) between two input forces. Furthermore, it was explained mathematically that the relative magnitudes of base movements due to the upper and lower input forces control this phenomena.
社団法人日本建築学会の論文
1997-07-30