Seismic Ball Bearing | Star Enterprise | WJKQZ type seismic ball bearings provided by Hao-engineered rubber. Seismic Ball Bearing | Star Enterprise | WJKQZ type seismic ball bearings are Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) 2014 has been newly upgraded launched less environmental conditions change in the short term, it is usually available at Daily inspections remove it. However, when the results of the comprehensive determination of periodic inspection, weather conditions, the bridge features steel truss bearing status has become necessary items. Special examination should be based on damaged condition and the nature of bridge bearings, bearing steel grid using field test equipment and other auxiliary test checks bearing steel grid to analyze the status quo, forming a conclusion. Steel truss bearing special examination report shall include the following main elements: general overview of inspection, including the basic situation of bridge bearings, the organization checks, time, Beijing and inspection processes. Steel truss bridge bearing holder to describe the current state of technology WJKQZ type seismic ball bearings, including items and methods sausage investigation, testing and inspection, testing data and analysis results and evaluation of the technical condition of the bridge bearings. Detailed description of the extent of damage and the cause of the examination site and proposed bridge bearing structural parts or the whole of repair, strengthen or suggestions motion replacement. Typical defects and diseases and diseases of photos and instructions. Defective condition of the application of professional standards describe earthquake terminology BJGQZ type ball bearings, indicating that the defect site, type, nature and scope. In order to ensure that roads and bridges destroyed during the earthquake does not guarantee or substantially maintain its functionality seismic ball bearings, prompting people to think through the bridge damping device and design methods to solve this problem, steel truss bridge seismic bearings Formula constantly advancing and bridge damages from the summary of the lessons learned, and continue to improve, exposed the lack of serious disasters in the world in terms of seismic design of bridges exist, bearing steel truss bridge damages must phenomena detailed seismic survey BLKQZ type ball bearing, deep analyzer occurrence mechanism, improve bridge seismic design methods, will it be possible to continuously improve bridge seismic levels. So bearing steel grid in 1994 State Science and Technology International Decade for Disaster Relief will be more damping clearly pointed out the history of our country have occurred in almost every province in varying degrees of damage, steel truss seat and announced A century project implementation in the next decade in our country, namely in the cities and in densely populated areas should be able to withstand earthquakes above 6 degrees. The major decisions bearing steel grid of seismic mitigation proposed specific and clear objectives, but also means that many arduous and difficult task facing our study researchers.