In the choice of ball bearing, should also be noted, as long as the beam end bearing deformation turn to meet the requirements, the more favorable the thickness of the thinner seat, and then the whole bridge structure to withstand the horizontal forces due to bearing bearing shear deformation does not depend on the completion of the design, but also give full consideration to fixing ball bearing steel ball bearing professional manufacturer of seismic activity in the form of curved bridge bearings and bearing parts of the structure and reasonable layout. In our country has always been a bridge and culvert specifications and industry standards, design and construction of ball bearings and acceptance requirements must be made in both the beam end bearing, bearing, snug contact with the pier and down, so that the ball bearing force uniform shall appear void phenomenon, rubber bearings in the best force uniform, with no void phenomenon, to ensure the ball bearing in the best stress state, when the beam has a longitudinal, should be leveling processing. Currently, the world bridge normative standards such as the US AASHTO-LRFD Highway Bridge Design Code (2004) EN1337-3 European standards (2005) and others require, when at the annual average temperature and all the dead load, the relative level of beam bottom consult more than 0.01 When rad, ball bearing steel must be used to make bridges corner wedge zero level to ensure that the force bearing bearing steel truss seismic steel ball bearing, so the bearing of bridge design specifications and industry standards are clearly defined when the beam must be leveling process is bottom longitudinal greater than 1%, and when the two longitudinal slope of less than 1%, when selecting the ball bearing deformation regulations will take into account, this can not be ignored. In the design, the general requirements to use ball bearing at least 30 years or more actual foreign demanding, ball bearings, such as the use of substandard products, not in three to five years, ten years, we will be problems, when in the long run, will reduce the life of rubber bearings, and the emergence of early bearing damage, economic losses caused by ball bearings, which is currently one of the main problems existing in ball bearings, Project Hope the use of units, not only as the main basis cheap to buy support. Installation and maintenance, the ball bearing installation and maintenance, but also affect the laminated rubber bearings use of effects and the key to life, ball bearings so the newly revised industry standards, increasing the number of requirements in this regard. If you install two-way active seismic unreasonable steel ball bearings, not the construction process, the construction process mishandled or branched cushion stone bearing beam bottom center of the plate and receiving seat centerline do not coincide and so on. After the ball bearing girder installation is complete, you may have a bearing bias goods appeared not meet the requirements of the initial shear deformation, which are a direct impact on the life of rubber bearings use of effects and, therefore, the construction must be ensure close contact with the two bearings, ball bearings and piers between, so bearing force uniform, does not allow partial pressure and the Void phenomenon. Ball bearings sometimes encounter after construction is completed, the construction of temporary taken to prevent the displacement of fixed setting, no timely removal, in addition, the construction process because the laminated rubber bearing considerable amount of installation work. Seismic activity unidirectional ball bearing steel, good quality Which? Hengshui Hao-seismic steel ball bearings provided by the Engineering Rubber Co., Ltd. Hengshui HaoTong. Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) in the field of construction materials at the site devoted boundless enthusiasm and passion, Hao-engineering rubber has been customer-centric, the concept of creating value for customers, quality, service to win the market, and sincerely hope to cooperate with the community to create a successful, create brilliant. Related businesses welcomed the inquiry, Contact: Liu.