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 two-way bridge site displacement sliding bearings, bridge span There may be arranged entirely unbalanced, causing some tension and compression support at the problem cropped up again. That pressure is tension, based on past experience in the design sliding bearings, sliding bearings proportion sides 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 bearing, not only that bridge, sliding bearing some large venues between roof trusses supporting column will appear the same situation. In order to overcome the pull force some balance weights structure using a simple way to steel sliding bearings, but multi-use set of skills under pressure and can withstand the tension mount form to apply, therefore, called the twelfth structure appears in the engineering business production and sales of bearings in the form of produce. Materials used sand, stone shall be subject to screening, may not contain Nick map and other debris. Particle size distribution needs to be strictly controlled by the test results, mix, mix the materials used should be determined by testing according to the strength of the design requirements. Single US cubic meters of concrete cement shall not be less than 350kg, sliding bearings when the mortar does not require high strength, cement, and what is available in a weight ratio of 1: 2, the other, sliding bearing blocks are in accordance with other aspects of cement and high strength Portland cement used method of construction, pouring concrete requirements for connecting nodes. Materials, sand pouring cement mortar used spherical sliding bearings, in what should be screened and may not contain other impurities cement base. Mix, pouring cement mortar mix materials, sliding bearings should be handled in accordance with the design requirements, in general, can be 1: 1, this mix mortar, the temperature at around 20 degrees Celsius, in the supermarket environment conservation type, sliding bearings Its compressive strength to the left 20mpa. High temperatures, the intensity increases are counted, press formulated mortar mix, the strength should not be less than 50. The spherical plain bearings sliding bearings _ _ finished sliding bearings factory direct HaoTong provided by Hengshui 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!