NRJ structure is covered with steel plates in a series of zigzags on top of the profile which is contacted with the vehicle wheel. It is excellent for noise reduction thus it is applicable for continuous bridge and long span bridge that has long distance expansion.
- As it is support beam type expansion joint in accordance with the principles of the elastic, it is applicable for all type of bridges.- As it is free for expansion and contraction in all directions, it is excellent to apply for curved and angled bridges. - As NRJ is covered with steel plates in a series of zigzags on top of the steel rail, it is durable and excellent for drivability. - NRJ completely solves the noise problem that existing rail joint occurred. - As gap between diamond shape of steel plates are narrow enough, there is no problem to pass for cyclists, pedestrians and the passage of the car.
Road and bridge noise is the main cause of complaint. Noise test proved that NRJ generates noise lower than finger joint, it shows the superiority of quite device.
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