1results about How to "Prevent transverse cracking" patented technology

This utility model discloses a reinforcement structure for cracking of segmental joints in long-span continuous concrete box girders. It includes an inner reinforcement component located inside the box girder and an outer reinforcement component located outside the box girder. The inner reinforcement component includes multiple sets of first longitudinal narrow steel plates fixed at intervals along the bridge direction on the inner bottom plate, and straight wide steel plates fixed at the front and rear ends of the inner bottom plate along the transverse bridge direction, covering the segmental joint area. The outer reinforcement component includes multiple sets of second longitudinal narrow steel plates fixed at intervals along the bridge direction at the bottom of the outer bottom plate, and U-shaped wide steel plates located at both ends of the outer side of the box girder, covering the segmental joint area. In this reinforcement structure, all steel plates are anchored with anchor bolts, ensuring full contact between the steel plates and the box girder, resulting in stability and reliability. This effectively improves the bending and torsional bearing capacity, crack resistance, and dynamic stiffness of the segmental joints in the box girder.