Steel structure steel box of bridge preventing vibration

摘要

The present invention relates to a bridge made of steel structure, in particular, in the bridge using the steel structure 60 connected to each other and the steel box 10 and the support 50 of the bridge 40, the steel box 10 An insertion hole 12 penetrating through one side of the inner and outer sides thereof; An air injection member (20) inserted into the through hole (12) and installed in the steel box (10) and filling air with the inlet (22) to absorb vibration of the steel box (10); The fixing bolts 40 inserted into the screw holes 32 are fastened to the plurality of fastening holes 14 formed on the outer circumferential surface of the insertion hole 12 of the steel box 10 to insert the holes 12 of the steel box 10. Bar steel structure of the bridge prevents vibration consisting of the blocking plate 30 to block the bar, even if vibration or impact is applied to the steel structure of the bridge cracks in the steel box because it efficiently absorbs vibration from the air injection member This is a very useful and effective design to prevent the occurrence and breakage.