Intelligent repair device and construction method for bridge expansion joint with shock absorbing effect

The invention discloses an intelligent repair device and a construction method for a bridge expansion joint with a shock absorbing effect. The repair device comprises a first concrete block, a rubbershell, a first connecting mechanism, a second connecting mechanism, a second concrete block, a supporting plate and a driving plate, wherein the first concrete block is arranged in the rubber shell; the first connecting mechanism comprises a connecting shaft, a connecting spring, a bushing and a first connecting hinge; the connecting shaft is arranged in the rubber shell, the connecting spring isarranged between the connecting shaft and the rubber shell, the bushing is arranged out of the connecting spring in a sleeving manner, and the first connecting hinge stretches out of the rubber shellthrough a through hole; the second connecting mechanism comprises an anchor rod and a second connecting hinge, and the second connecting hinge is connected to a preserved groove through the anchor rod; the supporting plate is a