THREE-DIMENSIONAL MARKING-OFF DEVICE FOR DISPLACEMENT TRAJECTORY RECORDING OF STRUCTURE

PROBLEM TO BE SOLVED: To concurrently record a horizontal relative displacement and a vertical relative displacement when a structure generates vibrations at the time of the earthquake and the like and an upper structure relatively displaces to a lower structure in horizontal and vertical directions...

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Bibliographic Details
Main Authors OTOHATA TETSUYA, HIRANO NAOTO, FURUHATA SEIICHI, FURUHATA YUSAKU
Format Patent
LanguageEnglish
Japanese
Published 16.05.2016
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:PROBLEM TO BE SOLVED: To concurrently record a horizontal relative displacement and a vertical relative displacement when a structure generates vibrations at the time of the earthquake and the like and an upper structure relatively displaces to a lower structure in horizontal and vertical directions.SOLUTION: A marking-off device 1 includes: a holding member 2 fixed to either one of an upper structure 8 and a lower structure 9 capable of generating a relative displacement at least either in a horizontal or vertical direction when the structure vibrates; a supporting member 3 fixed to the other structure; a vertical marking-off plate 4 held by having a vertical surface and the like in the holding member 2; a horizontal marking-off plate 5 held by having a horizontal surface and the like in the holding member 2; a vertical marking-off tool 6 supported in a state that the top end is capable of contacting the surface of the vertical marking-off plate 4 in such a manner as to freely protrude/recede in an axial direction from/into the supporting member 3 while facing the horizontal direction and the like; and a horizontal marking-off tool 7 supported in a state that the top end is capable of contacting the surface of the horizontal marking-off plate 5 in such a manner as to freely protrude/recede in the axial direction from/into the supporting member 3 while facing the vertical direction and the like.SELECTED DRAWING: Figure 1 【課題】地震時等、構造物が振動を生じ、上部構造が下部構造に対して水平方向と鉛直方向に相対変位したときに水平方向の相対変位と鉛直方向の相対変位を同時に記録する。【解決手段】構造物の振動時に水平方向と鉛直方向の少なくともいずれかに相対変位を生じ得る上部構造８と下部構造９のいずれか一方に固定される保持部材２と、他方に固定される支持部材３と、保持部材３に表面が鉛直面等をなして保持される鉛直罫書き板４と、保持部材２に表面が水平面等をなして保持される水平罫書き板５と、支持部材３に水平方向等を向いて軸方向に出没自在に、先端が鉛直罫書き板４の表面に接触し得る状態で支持される鉛直罫書き具６と、支持部材３に鉛直方向等を向いて軸方向に出没自在に、先端が水平罫書き板５の表面に接触し得る状態で支持される水平罫書き具７とから罫書き装置１を構成する。【選択図】図１
Bibliography:Application Number: JP20140210888