Bridging Device

Abstract

A bridging device for an expansion joint arranged between an abutment and an overhang in a traveling construction. The abutment and overhang are provided with recesses adjacent to the expansion joint, the recesses being filled with polymer concrete, and wherein a retaining section of a metallic edge profile is respectively embedded therein. An elastic sealing profile extends between the two edge profiles and is sealingly connected to the two edge profiles. A toothed profile is connected to each edge profile on the surface thereof, wherein the surface thereof terminates with the surface of the polymer concrete and the lining of the roadway and whose teeth engage with the other respective toothed profile.

1 . A bridging device for an expansion joint that is arranged between an abutment and an overhang in a roadbed or structure used by vehicle traffic and having an operating range, the bridging device comprising: 
 a) recesses provided in the abutment and overhang adjacent to the expansion joint that are filled with polymer concrete, in which, respectively, a retaining section of a metal edge profile is embedded;    b) an elastic sealing profile extending between the metal edge profiles of the abutment and overhang, which is sealingly connected to both metal edge profiles; and    c) an upper side of each metal edge profile being connected to a toothed profile, the toothed profile comprising a surface that is essentially flush with a surface of the polymer concrete and the roadbed, the teeth of each toothed profile meshing with the teeth of the other toothed profile.    
     
     
         2 . A bridging device according to  claim 1 , wherein the operating range is greater than 80 mm (3.1496 inches).  
     
     
         3 . A bridging device according to  claim 2 , wherein the operating range is greater than 100 mm (3.937 inches).  
     
     
         4 . A bridging device according to  claim 1 , wherein a width of the recesses of the roadbed is between 2.4 times and 4.0 times the value of the operating range.  
     
     
         5 . A bridging device according to  claim 1 , wherein the width of the recesses of the roadbed is between 2.8 times and 3.3 times the value of the operating range.  
     
     
         6 . A bridging device according to  claim 1 , wherein the retaining sections of the edge profiles have apertures that are filled with polymer concrete.  
     
     
         7 . A bridging device according to  claim 6 , wherein an area of the apertures is at least 180 cm 2  (27.9 in 2 ).  
     
     
         8 . A bridging device according to  claim 6 , wherein an area of the apertures is at least 120 cm 2  (18.6 in 2 ).  
     
     
         9 . A bridging device according to  claim 6 , wherein an area of the apertures of each retaining section is between 0.8 times and 2.0 times the value of the area of the expansion joint at its mean width.  
     
     
         10 . A bridging device according to  claim 6 , wherein the apertures are rectangular, and their extension in the longitudinal direction of the expansion joint is between 1.4 times and 3.0 times the value of the width of the strip remaining between two adjacent apertures.  
     
     
         11 . A bridging device according to  claim 1 , wherein the width of the metal edge profile and its retaining sections is a value that is more than 0.8 times the width of the recesses.  
     
     
         12 . A bridging device according to  claim 11 , wherein the width of the metal edge profiles and their retaining sections is more than 0.85 times the value of the width of the recesses.  
     
     
         13 . A bridging device according to  claim 1 , wherein each of the edge profiles comprises a fastening bar that is welded to a foundation bar that comprises the retaining section, the assigned toothed profile being welded to the fastening bar.  
     
     
         14 . A bridging device according to  claim 13 , wherein the toothed profile is screwed to the fastening bar.  
     
     
         15 . A bridging device according to  claim 13 , wherein the elastic sealing profile is configured as a humped hollow profile, the humped section extending into the space defined from the side by the two fastening bars and from above by the two toothed profiles.  
     
     
         16 . A bridging device according to  claim 1 , wherein the metal edge profile is not directly anchored on a load-carrying system of the abutment or the overhang.  
     
     
         17 . A bridging device according to  claim 1 , wherein the metal edge profile is anchored at certain points on a load-carrying system of the abutment or the overhang.  
     
     
         18 . A bridging device according to  claim 1 , wherein a hot application of joint sealant is provided in a transition area between the abutment and the overhang respectively and the area of polymer concrete in the area of the roadbed.