| 摘要 |
The bearing which can be subjected to high loading and is intended for bridges and other structures comprises an upper and a lower slab (2, 3) and an elastomeric cushion (4) which receives the load and is located between the slabs. The cushion (4) has a constricted portion on its periphery. The bearing is provided with means which prevent a translatory movement between the upper and lower slabs (2, 3), but permit a tilting movement between them. The invention provides a device (15, 16) to delimit or to prevent a lateral expansion of the base and top surfaces of the cushion (4) without preventing its periphery from bulging outwards. A bearing of this type permits, with the same dimensions, greater loading and ensures better stability. <IMAGE> |
