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 a one-way bridge site seismic sliding bearings, bridge Cross arranged entirely possible imbalance caused some tension and compression support at the problem cropped up again. That pressure is tension, based on past experience in the design, the proportion of the sliding bearing bridge across the edge of 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 not only bridge 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. Fluidity fluidity of the mortar has become consistency, refers to its own weight or external force under running performance. Mortar and water flow characteristics of the variety and amount of cementing material, sand particle gradation and fineness traits of particles, and the amount of admixture and mixing time and other factors, sliding bearing mortar flow type available Mortar consistency instrument measured by sliding bearings sank degrees, water retention, water retention mortar mortar type refers to maintain moisture performance. Water should not be isolated in the transport of mortar, standing or construction process from mortar, mortar and so maintain the necessary consistency, easy to operate, while allowing normal hydration of the cement, and the amount of slide bearings and mixing time to ensure that the body of masonry strength. Sliding bearing mortar hierarchical representation with water retention, good water retention mortar board Teflon sliding bearings, their hierarchical way of not more than 20mm slide bearing, layered greater than 20mm mortar easy segregation and Use mortar to maintain the necessary consistency, ease of operation, while cement normal spray, inconvenient construction, prone to dry cracks after hardening. Mortar intensity level is the side length of the cube test block, according to the standard curing condition to determine the compressive strength, China's transportation industry standard highway bridge design specification mortar strength level for analysis. Finished sliding bearings sliding bearings _ _ ho-ho Rubber pass 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!