To prevent the lowering of the vibration absorption function of an elastic body and the stop of the function of a structure when excessive horizontal displacement occurs during the occurrence of an earthquake, in structure to support a structural body, such as a structural object and a machine device, through an elastic body.
The end parts in the direction of a bridge axis of a bridge girder 1 are elastically supported at an abutment 2 through laminated rubber bodies 3 and a pair of horizontal displacement control devices 4 are provided to generate a frictional force increased with the increase of the horizontal displacement of the bridge girder 1. A horizontal displacement control device 4 comprises an elastic member 10, protrusion body 11, and a cam body 12. A conical surface is formed on the cam surface of the cam body 12 and when the bridge girder 1 is horizontally displaced in either direction during the occurrence of an earthquake, the protrusion body 11 is forced into frictional contact with the cam surface to generate a frictional force and suppress the occurrence of horizontal displacement.
OGAWA KAZUSHI
SAITO TOSHIO
FURUIKE HARUTAKA
HATABE JIYUNICHI
TAMAKI TOSHIHIRO
DOI YOSHINORI
KOBAYASHI HIDEKAZU
| JPS61130640A | 1986-06-18 | |||
| JPH0514382B2 | 1993-02-24 |
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