Expansion joint bridging device

An expansion-gap bridging device (1) in the form of a multi-plate roadway expansion joint (2), which bridges over an expansion gap (4), which is disposed between two structure parts (3) of a traffic-carrying structure, wherein:

• the expansion gap (4) is spanned by at least two crossbeams (5), which are braced in load-bearing relationship on two structure parts (3), wherein at least one of the load-bearing bracing points (6) permits a displacement movement of the respective crossbeam (5) relative to the structure part (3) in question;
• one chord plate (11) disposed above the crossbeams (5) is braced on the crossbeams (5) in such a way that it can be displaced relative to the crossbeams (5);
• one overload-safety device (17), which is not firmly joined to any of the structure parts (3), is provided in a relationship at least substantially parallel to the chord plate (11);
• the overload-safety device (17) comprises two bracing profiles (18) spaced apart from one another and braced on the crossbeams (5) as well as one filler profile (32) bridging the gap (S) between the bracing profiles (18);
• at least one fixation device (31, 49) that clamps the position of the two bracing profiles (18) relative to one another acts between the two bracing profiles;
• when the force acting in the sense of approach of the two bracing profiles (18) toward one another exceeds a threshold value, the fixation device (31, 49) acts to release the position clamp in such a way that the two bracing profiles (18) can be moved toward one another while forcing the filler profile (32) upward out of the gap (S).

An expansion-gap bridging device (1) in the form of an overload-safety device (17), which bridges over an expansion gap (4), which is disposed between two structure parts (3) of a traffic-carrying structure, with the following features:

• the expansion gap (4) is spanned by at least two crossbeams (5), which are braced in load-bearing relationship on two structure parts (3), wherein at least one of the load-bearing bracing points (6) permits a displacement movement of the respective crossbeam (5) relative to the structure part (3) in question;
• the overload-safety device (17), which is not firmly joined to any of the structure parts (3), comprises two bracing profiles (18) spaced apart from one another and braced on the crossbeams (5) as well as one filler profile (32) bridging the gap (S) between the bracing profiles (18);
• at least one fixation device (31, 49) that clamps the position of the two bracing profiles (18) relative to one another acts between the two bracing profiles;
• when the force acting in the sense of approach of the two bracing profiles (18) toward one another exceeds a threshold value, the fixation device (31, 49) acts to release the position clamp in such a way that the two bracing profiles (18) can be moved toward one another while forcing the filler profile (32) upward out of the gap (S).