Abstract: The present application belongs to the technical field of bridge engineering, and particularly relates to a structure for relieving cracking of a steel bridge deck. The structure for relieving cracking of a steel bridge deck comprises a steel bridge deck and a plurality of U-ribs welded and fixed to a bottom of the steel bridge deck, and further inventions an iron-based shape memory alloy (Fe-SMA) fixing unit, a filling unit, a structural layer, and a test wire. A Fe-SMA having a restoration capability in the case of heating is used and formed into a honeycomb structure to greatly reduce an amplitude of fatigue stress and an influence of fatigue cracking of a welding part on the bridge deck.

Abstract: The present invention relates to the technical field of bridges, and specifically discloses a bridge sling based on electrochemical detection on steel wire corrosion. By means of winding a steel wire bundle with a wrapping tape, and coating the wrapping tape with a shielding coating, the steel wire bundle and the shielding coating are electrically connected with positive and negative electrodes of a voltage test assembly respectively, so that simple and accurate detection on corrosion in the sling during service is realized, and the safety of the sling during the service is ensured.

Abstract: The present invention provides a high-pressure bearable scale type bridge rubber bearing, comprising spring rubber vibration reduction pad assemblies, a flexible steel plate assembly and a rubber bearing body. The rubber bearing body comprises an outer rubber portion and an inner rubber portion; the outer rubber portion is wrapped around the outside of the spring rubber vibration reduction pad assemblies and the flexible steel plate assembly; the spring rubber vibration reduction pad assemblies are arranged on the upper side and the lower side of the inner rubber portion; and the flexible steel plate assembly is fixedly mounted between the spring rubber vibration reduction pad assemblies. The rubber bearing of the present invention has a relatively large elastic deformation after being loaded and can effectively conduct vibration reduction and earthquake resistance during use.