Elastic damping steel bearings are based People's Republic of China Communications Industry Standard "highway bridge rubber bearing basin" (JT391-1999) and highway engineering seismic design code (JT004-89), in JQGZ (I type) Series seismic damping bearing on the basis of, the detailed statics, dynamics analysis developed from the new seismic damping steel bearing. JQGZ-II series of seismic damping bearing relatively JQGZ (I type) seismic damping bearing structure is more reasonable, more reliable performance and longer service life. Elastic damping steel bearings include fixed bearing, one-way activity, three types of two-way activity, bearing specifications are divided into 22 grades, vertical design bearing capacity, design corner, friction coefficient according to the relevant design standards. Their level of capacity, the overall strength of the vertical pulling force than ordinary bearings and bearing a substantial increase. The series bearing elastic damping element, with a clear mechanism of clear, stable structure parameters, excellent damping performance characteristics. The principle is horizontal damping force to a certain extent, the damping spring is elastically deformed to achieve start buffer. When the structure of the corner, the ball rotates core produce and release the torque generated by the upper structure. When the earthquake, rigid and flexible measures seismic damping measures at the same time play a role, in order to resist the huge earthquake input energy. In a large earthquake fluctuations, both to ensure the bridge, under construction between reasonable relative displacement amplification factor decreases seismic forces, but also to keep the structure unity. The bearings can withstand earthquakes 8-11 degrees, especially for highly seismic zone earthquake epicentral area of ??engineering structures have good shock damping effect. Elastic damping steel bearings for large-span spatial structure and large-span bridges, especially for wide bridge, curved bridge, the bridge of engineering structures especially for high-intensity earthquake zone. Elastic damping steel bearing products have been in the Ministry of Construction Research Institute of Metallurgical Engineering Structures Laboratory, Shijiazhuang Railway Institute of Engineering Structures Testing Center, Shanghai Tongji Construction Engineering Quality Inspection Station, Guangzhou University Earthquake Engineering Research Center of qualified testing. Advantages JQGZ-II series seismic damping bearing: 1, using spherical contact bearings, large contact area, low pressure, mass force uniform, small, small amount of steel. 2, universal bearing can withstand the pressure, shear forces and pull in any direction. 3, can be universal rotation, to release the bending moment in any direction. 4. Supports the use of damping spring, damping required to meet the high intensity area of ??engineering structures. 5, the force bearing parts are made of steel, in 200 years, there is no problem of aging. 6, bearing PTEE products used in its friction coefficient is small, aging resistance, low temperature up to -150 ℃, to ensure that the universal bearing rotation flexibility and application in cold northern regions. 7, bearing reaction force focused, clear and not change with the angle. 8, the role of the lower bearing structure (column, pier) by force. 9. Supports dynamic and static rigidity, ensuring the smooth operation of the vehicle. 10, low seat height, favorable structural design of the bridge. www.htgcxj.com 

palabras clave: Damping steel supports, elastic damping steel bearings, one-way elastic damping steel bearing,