time dilation and multi-directional seismic for road bridges and similar

摘要

the gasket is made up of a series of steel components assembled to form a single body, which is fixed to the insole by threaded rods and nuts c.a self locking.the gasket is formed by supporting lower (010).cages (020) containing elements (030) which is sliding and support higher (040), which ensures the continuity between the two ends of the bridge or between the two parties to collegare. the time also is composed of two carter (050) also in steel, but lined neoprene.by changing properly some elements and by varying the number and the arrangement of rollers and / or spheres of flow (030) it is possible to make joints for various application fields and divasdifferent sizes of opening.