Gatling - Gatling

Japanese: ガタ - がた
Gatling - Gatling

…There is no record of a five-story pagoda ever collapsing in an earthquake. Its earthquake resistance is due to, first, the central pillar that penetrates from top to bottom, forcing the five stories to deform in the same way, preventing any story from collapsing locally, and at the same time lengthening the period, and second, the pillars, ridgepole beams, and other members that make up the pagoda are loosely connected to each other, absorbing energy through what is called "backlash." In other words, it can be said to be a structure with a long period and high elasticity (or, more accurately, damping). …

*Some of the terminology explanations that mention "gata" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… 五重塔は古来地震で倒れたという記録がない。その耐震性は第1に,心柱が上から下まで貫通していて,五つの層に同じような変形を強制し,どこかの層が局部的に倒壊するのを防止しており,同時に周期を長くしていること,第2に塔を構成している柱,なげし,斗肘木(ますひじき)などの部材が相互に緩く結合されていて,いわゆる〈ガタ〉によってエネルギーを吸収していることと考えられる。つまり長周期であり,かつ粘り(この場合正確には減衰)も大きい構造物であるといえる。…

※「ガタ」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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