| 摘要 |
PURPOSE: A one-way movable type lead rubber bearing is provided to cope with wind load and seismic load without exceeding the tolerable limit although the lead rubber bearing is installed at both end sections to which moving rate is applied larger than the intermediate section of a bridge structure. CONSTITUTION: A one-way movable type lead rubber bearing is composed of an elastic body(10), upper and lower connecting steel plates(3), a lower plate(4), and an upper plate(5). An elastic rubber layer(12) having a hollow(11) and a reinforcement plate(13) are formed in the elastic body to be laminated alternately. A lead bar(14) is inserted in the hollow. The upper and lower connecting steel plates are formed at the upper and lower ends of the elastic body. The lower plate is connected to the lower connecting steel plate by bolting. The upper plate is formed to the upper connecting steel plate to be movable freely. A plate body is formed in the upper plate. The plate body includes a guide device and wedges(52,52A). |
