Neck section sliding bearing hinge generally be made of concrete circular or octagonal, neck diameter is smaller than the root of the concrete hinge Nanjing map size, splitting tensile stress usually made of concrete reinforced to withstand the bolt, the bolt arrangement of tendons minimum height of about 0.7d, sliding bearing spiral bar area can be estimated, the axial force acting on the hinge and screw diameter bars, bridge structure design is often due to various factors such as the bridge site, across the bridge may be completely arranged balance, causing some tension and compression support at the problem cropped up again. That pressure is tension, based on past experience in the design pot rubber sliding bearings, sliding bearings proportion side of the bridge across the hungry should be controlled at 0.52-0.62, when using the side span span of 0.5 or more hours. To set the general tension in the transition pier abutment, so only one-way bridge seismic sliding bearings, sliding bearing some large venues between roof trusses supporting column will appear the same situation. In order to overcome the pull force structure using some balance weights approach, but multi-use set of skills under pressure and can withstand the tension mount form to apply, therefore, bearing structure in the form known as the twelfth generation appeared in works to produce sales. Sliding bearing design parameters for the design of vertical bearing capacity 0.8-80mn design level greater than the design capacity was 30% of the design of vertical bearing capacity of vertical uplift force is greater than 50% of the vertical bearing capacity design horizontal displacement angle is 0.02rad for 15mm-500mm sliding coefficient of sliding friction bearing design sliding 0.02 main technical characteristics of the product quality bearings used, can consume a large amount of seismic energy steel sliding bearing, with good energy dissipation capacity of sliding bearings with low coefficient of sliding friction, in normal use state can effectively release temperature stress structural acceptable longitudinal horizontal force, and has good resistance to pulling capacity. Has good durability. Replaceable and has good service. Unidirectional seismic sliding bearing | sliding bearings | manufacturer specializing in the design provided by Hengshui Hengshui Hao-Hao Tong Rubber Co. project. 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!