Roads and bridges should be arranged within the support cushion stone steel mesh, bar diameter of not less than 8mm, spacing appropriate for the 50mm * 50mm, should be connected to the vertical steel reinforcement inside the piers, stone pad for pouring concrete strength not less than C40, at the same time, the top surface of the concrete pad stone should be pre-calibrated with a spirit level, and strive to smooth rather than smooth, and ensure that the surface is clean, dry, sand and other fluorine-free. Highway bridge bearing pad stone top surface elevation should strive bearing pad stone top surface will be the same elevation level, this top must be strictly controlled. The same highway bridge support cushion stone height should be less than 0.5mm, its relative height should not exceed 1.5mm fixed spherical bearing, in order to avoid bias, the initial shear deformation and appear uneven force phenomenon. Roads and bridges now pouring into every branch of installation is relatively simple, highway bridge bearing construction sequence, cleaning and sorting support cushion stone, the first branch before receiving seat cushion top surface of the stone bridge pier or remove loose sand table keep the pad stone top surface clean and free of oil, if the elevation deviation stone piers support cushion is too large, use a dry hard cement mortar to adjust. Ensure flatness and precision elevation pad stone. Highway bridge bearings hysteresis curve area surrounded by small, energy-intensive and sent shock absorption capacity, on the contrary, lead pin diameter is large, the lead pin meals will change form spherical, can not provide a good level of restoring force. According to the experimental structure of observation and foreign engineering practice supports, height ratio of the diameter of the highway bridge bearings and bearing roughly in the following range, when a lead pin can not meet the formula provided in the design of the rubber bearing in Highway bridge bearings can be used along the vertical and horizontal axis bearing more symmetrical arrangement with lead solder pins sliding bearings, single point energy damping capacity of the highway bridge bearings have the same cross-sectional area than a single lead pins Yao flute universal ball bearing hinges, must be designed to attract attention. In order to ensure a good highway bridge bearings, stable performance and quality, lead marketing system designed to produce a live call that should make the necessary bearing performance testing, has confirmed LRB static and dynamic nature and stability requirements, static characteristics of highway bridge support should include, durability, vertical bearing capacity, creep compression, temperature stability, and usually horizontal load resistance. Ball bearing hinges | Lhasa bearing | manufacturers 13,833,855,982 by Hengshui HaoTong Rubber Company. Hengshui Hao-Engineering Rubber Co. (www.htgcxj.com) strong, credible, Hebei Hengshui site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement through innovative ideas will lead Hao engineered rubber and you hand in hand into the brilliant, for a better future!