架構隅柱の軸力変動に見られる地動の3次元性の重畳効果(前篇)

概要

論文の詳細を見る
With a view to obtaining better insights into the earthquake-resistant ductility design of moderately highrise buildings, studied is the nature of multiple super-position in the varying axial force produced at their corner columns under the action of 3-dimensional ground shakings. The examination makes use of a macroscopic and statically determinate replacement of dynamic and yielding frames without getting involved into their member-by-member analyses. Focusing upon the axial force of corner columns at base story, the current formulation is composed of an equivalent 1-dof storywise deflation combined with a time-invariant spanwise extraction of axial force along the two axes of longitudinal and transverse directions. In spite of its bare simplicity, this can be rendered reliable enough to be used for practical purposes, and allows a clear-cut understanding of the role of governing structural parameters. Then a self-contained set of quantitative discussions follows by use of an example of 15-storied reinforced concrete building and its like. Evolution of the magnitude of varying axial force is examined therein with relation to the increasingly larger ductility factor attained in longitudinal direction. Single-component evaluations along each of longitudinal and transverse directions are compared to their two-component superposition on the horizontal plane as well as to the three-component superposition which includes additionally the action of vertical ground shaking. The results highlight an outstanding growth of the varying axial force under the horizontal two-component superposition, while contribution of the vertical component of ground acceleration is shown to remain far less noticeable.
一般社団法人日本建築学会の論文
1989-03-10

著者

滝澤春男
北海道大学

架構隅柱の軸力変動に見られる地動の3次元性の重畳効果(前篇)

スポンサーリンク

概要

著者

関連論文

スポンサーリンク