| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing structure of a bridge which does not cause fatigue of bolts or the like for a long period and in which rubber bodies and the upper and lower steel plates can be easily exchanged. SOLUTION: The lower side base plate 5 is fixed to the base seat 1a of a bridge pier 1 and the lower steel plate 11 of a rubber body 10 is detachably fixed to the lower side base plate 5. And the upper side sole plate 7 is fixed to a bridge girder 2 and the upper steel plate 12 of the rubber body 10 is detachably fixed to the upper side sole plate 7. Shearing keys are projected from the upper and lower steel plates 11, 12 and grooves 26, 27 are formed on the upper and lower sole plates 7, 5 so as to cross the plates. And auxiliary plates 28 divided into two portions are fixed in the grooves 26, 27 and a recess fitting to the half-peripheral face of the shearing key is formed at the inside face of respective auxiliary plates 28. |
