Load transmission device

Abstract

The present invention relates to bars for load transmission, which if anchored in concrete slabs create a support between them, forming semi-rigid joints and accompanying the differential settlements of the foundation bed, as a result of the rotation in the vertical direction about the joint axis, and transmitting the load from a slab to the other, ensuring a perfect leveling of the surface thereof when occurring elastic movements of the foundations, and allowing the possibility of removing the slabs at any time and reuse them again, due to the telescopic effect of the bars. The telescopic function of the bar which allows its support between slabs created a new possibility of obtaining prefabricated floorings of easy manufacture and assembly in situ, creating a new concept in the construction of roads, ports, airports, railways, industrial areas, etc., which distinguishes the present invention from the closest state of the art.

1 . Telescopic bar for load transmission ( 1 ) anchored in concrete slabs that create a support between them, forming semi-rigid joints, characterized in that it the bar ( 1 ) is pre fixed in an acceptance slab, and the extension of the same is inserted in a sheath ( 2 ) which is screwed to a rigid base, anchored in the adjoining slab and comprises a transmission system from rotary motion into rectilinear motion actionable from the surface of the slab, which system moves the bar ( 1 ) from back to front. 
     
     
         2 . Telescopic bar for load transmission ( 1 ) according to  claim 1 , characterized in that the bar ( 1 ) is placed laterally along the slab thickness. 
     
     
         3 . Use of telescopic bars ( 1 ) as described in  claim 1  in prefabricated concrete slabs, characterized in that said telescopic bars for load transmission are anchored or casted in cement concrete slabs and execute the load transmission from a slab to the adjacent slabs. 
     
     
         4 . Use of telescopic bars ( 1 ) as described in  claim 2  in prefabricated concrete slabs, characterized in that said telescopic bars for load transmission are anchored or casted in cement concrete slabs and execute the load transmission from a slab to the adjacent slabs.