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A platform for research: civil engineering, architecture and urbanism
BRIDGE DISPLACEMENT RESTRICTION DEVICE
PROBLEM TO BE SOLVED: To provide a displacement restriction device capable of easily executing return work in a short time after a displacement restriction structure is ruptured.SOLUTION: A displacement restriction device comprises an upper shoe 11 fixed to an undersurface of an upper structure 1, a lower shoe 12 fixed to an upper surface of a lower structure 2 and a shear key 13 arranged between these upper shoe 11 and lower shoe 12, and the under surface of the upper shoe 11 is formed with an upper side fitting groove 16 extending along the horizontal direction at a right angle to the displacement restriction direction of the upper structure 1, and the upper surface of the lower shoe 12 is formed with a lower side fitting groove 20 extending along the horizontal direction at a right angle to the displacement restriction direction of the upper structure 1, and the shear key 13 is composed of an upper side fitting part 21 slidably fitted to the upper side fitting groove 16, a lower side fitting part 22 slidably fitted to the lower side fitting groove 20 and a notch part 23 for rupturing when a predetermined or more of restriction directional load is applied to the upper structure 1 by connecting between the upper side fitting part 21 and the lower side fitting part 22.SELECTED DRAWING: Figure 2
【課題】変位制限構造が破断した後、復帰作業を容易に短時間で行うことができる変位制限装置を提供する。【解決手段】上部構造１の下面に固定される上沓１１と、下部構造２の上面に固定される下沓１２と、これら上沓１１及び下沓１２間に配置されるせん断キー１３とを備え、上沓１１の下面には上部構造１の変位制限方向と直角な水平方向に沿って延びる上側嵌合溝１６が形成され、下沓１２の上面には上部構造１の変位制限方向と直角な水平方向に沿って延びる下側嵌合溝２０が形成され、せん断キー１３は、上側嵌合溝１６にスライド嵌合される上側嵌合部２１と、下側嵌合溝２０にスライド嵌合される下側嵌合部２２と、上側嵌合部２１と下側嵌合部２２との間を連結し、上部構造１に所定以上の制限方向の荷重が加わったとき破断するノッチ部２３とからなる。【選択図】図２
BRIDGE DISPLACEMENT RESTRICTION DEVICE
PROBLEM TO BE SOLVED: To provide a displacement restriction device capable of easily executing return work in a short time after a displacement restriction structure is ruptured.SOLUTION: A displacement restriction device comprises an upper shoe 11 fixed to an undersurface of an upper structure 1, a lower shoe 12 fixed to an upper surface of a lower structure 2 and a shear key 13 arranged between these upper shoe 11 and lower shoe 12, and the under surface of the upper shoe 11 is formed with an upper side fitting groove 16 extending along the horizontal direction at a right angle to the displacement restriction direction of the upper structure 1, and the upper surface of the lower shoe 12 is formed with a lower side fitting groove 20 extending along the horizontal direction at a right angle to the displacement restriction direction of the upper structure 1, and the shear key 13 is composed of an upper side fitting part 21 slidably fitted to the upper side fitting groove 16, a lower side fitting part 22 slidably fitted to the lower side fitting groove 20 and a notch part 23 for rupturing when a predetermined or more of restriction directional load is applied to the upper structure 1 by connecting between the upper side fitting part 21 and the lower side fitting part 22.SELECTED DRAWING: Figure 2
【課題】変位制限構造が破断した後、復帰作業を容易に短時間で行うことができる変位制限装置を提供する。【解決手段】上部構造１の下面に固定される上沓１１と、下部構造２の上面に固定される下沓１２と、これら上沓１１及び下沓１２間に配置されるせん断キー１３とを備え、上沓１１の下面には上部構造１の変位制限方向と直角な水平方向に沿って延びる上側嵌合溝１６が形成され、下沓１２の上面には上部構造１の変位制限方向と直角な水平方向に沿って延びる下側嵌合溝２０が形成され、せん断キー１３は、上側嵌合溝１６にスライド嵌合される上側嵌合部２１と、下側嵌合溝２０にスライド嵌合される下側嵌合部２２と、上側嵌合部２１と下側嵌合部２２との間を連結し、上部構造１に所定以上の制限方向の荷重が加わったとき破断するノッチ部２３とからなる。【選択図】図２
BRIDGE DISPLACEMENT RESTRICTION DEVICE
橋梁の変位制限装置
YAMAZAKI MIKIO (author) / UENO MAKOTO (author) / MIYAMOTO MASAAKI (author) / KAWAURA JUNICHI (author) / KATO JUNICHI (author) / HISHIJIMA YASUHISA (author) / HONMA KEIICHI (author)
2016-12-08
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
| European Patent Office | 2021