EARTHQUAKE-PROOF ELASTIC SHOE BEARING FOR BRIDGE AND INSTALLATION METHOD THEREOF

摘要

PURPOSE: An earthquake-proof elastic bearing for a bridge is provided to secure the safety of a bridge structure against earthquakes and natural disasters to the maximum by enhancing the fixed state by anchors on the upper part of a pier and to protect human lives and properties from earthquakes and natural disasters with a stable function. CONSTITUTION: An earthquake-proof elastic shoe bearing comprises a lower plate(1) comprising many anchors(11) for fastening to the lower part by laying to the top of a pier and many anchor holes(12) bored on the right and left to be inserted into the bridge anchor, an elastic pad(3) buffing against the vertical reaction force of an upper bridge structure affecting to an upper plate(4) between an upper plate and a lower plate, a pair of upper supports located to the upper part of the anchor hole of the lower plate and having a key groove(23) for inserting a key(42) of the upper plate, and the upper plate comprising an anchor(41) laid to a bridge upper structure attached on the upper side and many keys(42) inserted into the key groove of the upper supports on the right and left sides.