Hao-engineered rubber, steel truss sliding bearings, sliding bearings grid provided by Hao-engineering rubber. We are Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) located at: Hebei Hengshui specializes in: grid bearings, bridge expansion joints, water stop, bridge bearings, rubber bearings, spherical steel bearing in order to ensure The basic function of bearing, the bearing design should first be based on functional requirements, predict its function was reduced by the yearly changes in the extent possible, the management must maintain a minimum function of a standard set of regulations and standards in order to ensure the maintenance of this Check the frequency and content, and to restore the function of the management plan has been reduced in advance to have a perfect overall maintenance management planning. Secondly, although the self-made according to the degree of change and development of deformation, to predict lower bearing function, a single judge and selected the exact repair methods and implementation time, etc. In fact, not only depends on bearing itself changes, must also full-bridge design, construction and related data maintenance and management of the past has been cracking and master, which is to ignore the important part. Meanwhile, on the methods used to record and save data. Should also be included in the overall maintenance plan and have clearly defined particularly important. In particular bearing maintenance and management, in addition to bearing after processing must be confirmed by a variety of experiments carried out to meet the energy requirements of parts of the car, bearing in use regularly in testing and maintenance, for laminated rubber bearings The main check there are no rubber bearing cracks, bearing the phenomenon of displacement and void if it is found should take timely and effective measures to deal with. Form the lower part of the bridge structure, bridge bearing repair or replacement unidirectional sliding bearing grid, using the pre-liter methods and construction scaffolding, should be based on the form of the lower part of the bridge structure is concrete or steel structure, seat targeted research. When jacking construction, construction steel truss bearing repair slip bearing, on many occasions to consider the beam from the top grid sliding bearings, then you must pay attention to the local bearing stress jacking equipment location, Soldiers should take a different approach to strengthen the structure of different materials. To be from the top of the main beam in bear parts should check their jack whether to allow the top, measures must be taken to strengthen the time. Jacking operations are generally due to the lower construction height between the main beam and are relatively small. It should be based on the actual need to select the appropriate jack type. If the original design of the bridge is not considered a placeholder placed jacks, construction scaffolding erection is usually considered to achieve. If you were using the side jacking beam damping grid slip bearing, should also end composite beam for safety checking to avoid the destruction of concrete edge beam end, when performing lifting operations, you must top up amount analysis of comparative study, as much as possible so that the bridge does not appear cracks and adversely affect the bridge superstructure, has reached a reasonable value, to meet the requirements of the construction.