| 摘要 |
A bridge bearing having a negative reaction resistant elastic member is provided to bear large negative reaction and to use for installing a track of a monorail. A bridge bearing(100) having a negative reaction resistant elastic member includes a lower member(110) fixed to a pier of a monorail structure and provided with an elastic body receiving groove(111) to receive an elastic body made of polyurethane, an upper member(130) installed at the bottom of an upper structure and provided with hanging portion(131) projected to two sides and an intermediate member receiving groove wider than the intermediate member to allow the relative horizontal movement of the intermediate member, an intermediate support(140a) installed between the lower and the upper members to support them at a certain interval and to support load of the upper structure and composed of an elastic body(120) only or an intermediate member(140) only, a negative reaction resistant elastic member(160) placed between the hanging portion and a compressing portion(151) of a hanging portion restraint member(150) to keep the distance between the hanging portion and the compressing portion elastically when negative reaction acts between the upper and the lower members, and the hanging portion restraint member compressing the hanging portion through the negative reaction resistant elastic member and resisting negative reaction acting on the upper member. |
