Ball bearing damping _ processing manufacturers _GJQZ ball bearing type bidirectional activities damping provided by Hao Tong Engineering Rubber Co., Ltd. Hengshui. Ball bearing damping _ processing manufacturers _GJQZ bidirectional activity ball bearing damping is Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) launched this new upgrade, above pictures for reference only, please Dial telephone or pictures on this page, for the latest information, contact: Liu. When the bridge completed and delivered, due to various reasons really a bridge maintenance is not timely GJQZ type fixed damping ball bearing, is not complete, the conservation technique emperor, especially for steel truss bridge abutment portion is paid insufficient attention to conservation After years of using checks bearing steel grid can be found awareness seat itself is damaged, the majority of bridges using early Felt like the outside has been replaced, and laminated rubber bearing steel grid appear rubber aging, deterioration, so beam loss of freedom scalability, a direct result of the beam end or pier caps, concrete rupture, causing off angle, gnawing edge phenomenon, steel truss bearing plate displacement will cause serious damage to the deck telescopic device, steel loose bearing fixed grid system, dislocation, cylinder pots exposed parts rust, dust cover rupture. Second, steel truss bearing plate fracture GJQZ damage tilt damping ball bearing type one-way activity, crushed stone concrete support cushions stripped off angle and other diseases. The main cause of damage to the bridge is roughly, one bearing steel grid itself substandard quality, low-intensity, lack of capacity, but in terms of design, bridge bearing selection form, layout unreasonable, bearing edge set aside enough width, steel truss support cushion stone concrete strength is low or insufficient support cushion stone to strengthen steel, fixing bolts. Nuts strong enough, etc. Third, the construction aspect, in terms of installation and construction support cushion stone, beams or pad the bottom surface is not flat stone roof surface is not level, the mortar filling is not dense, inner pad stone embedded steel is not strong, with steel grid Supports connection is not strong, steel bearing corrosion, rust treatment quality is not high. At 5:46 on January 17, 1995 Kobe earthquake occurred in Japan, steel truss bearing hypocenter location latitude 34'34 Hanshin earthquake is a shallow epicentral earthquake, earthquake formation fracture along Osaka Kobe area extended reached 8km, crack width 0.2m, this earthquake has the following characteristics. Bearing steel grid near field level to get the maximum acceleration reached 600-800cm, vertical acceleration peak reached 300cm, the duration of the earthquake was near-field two-way active damping 10-15s GJQZ ball bearings, excellent cycle Due to space varies, affected by significant terrain, steel truss bearing the Great Hanshin earthquake in Kobe modernization has brought great disaster, steel truss bearing due to the new route, highway, elevated railway, subway, viaduct collapse, chips and serious break will ah, ports, terminals sinking tilt, causing traffic in addition to almost all aviation outside off, resulting in 5,466 deaths and economic losses of about $ 100 billion, the Japanese destroyed most since 1923 Great Kanto Earthquake severe earthquake.