Product overview Energy absorption function reduces impact force during earthquake Features and specifications High energy absorption performance due to plastic deformation Installation situation Steel pipe with slit Strong shackle performance is ensured. Patent No. 4964205 NEXCO East Japan Engineering Co., Ltd. Other road companies: 66 Public bodies, etc.: 85 Private companies, etc.: 206 ) Image maintenance/repair/materials/mechanical energy absorption type chain-type bridge fall prevention device installed by Kawakin Coretech (sales/installation/installation) Effects of kinetic energy during large-scale earthquakes due to plastic deformation of slit-processed steel pipes effectively absorb. ● Since movement in all directions can be followed, the movement function of the bearing is not impaired. ● It has the same durability as superstructure. ● Visual inspection is possible. ● Even after a large-scale earthquake, it is easy to determine whether or not the product can be used continuously, and replacement work is also easy. ● It has a simple structure consisting only of steel parts. ● Cost reduction is achieved by adopting a very common steel pipe (STK M 13A). ● It has high energy absorption performance due to plastic deformation of steel. Since movement in all directions can be followed, the movement function of the bearing is not impaired. ● The chain has play (margin) so that the impact force is not transmitted directly to the structure. The load generated in the chain is transmitted to the steel pipe through the bolt, and the steel pipe begins to undergo plastic deformation.
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