After the test, the following conclusions by these two types of hinge to withstand pulses and pulse load combined with the design of the corner box ah, by rotation of the test made after shear test, which is similar to the case of the sliding bearings of the hinge in the concrete see manholes along the crack surface flaking, and in the steel hinges do not see this phenomenon proves steel played a role. Hinge sliding bearing is free to rotate in any direction. Sliding bearings and "existing hinge different" because of the neck is not easy even finished concrete steel ball bearings single slide, so its function is less than the steel plate to the good sliding steel ball bearings, indicating that under pulse loads than concrete steel hinge hinge for stable, so the concrete joints in different directions to note vibrating compaction. According to the test of experience in Germany, hinge reinforcement shall be arranged in accordance with the test and the test results photoelastic model full-scale concrete hinges, hinge on the concrete proposal is designed primarily through the midpoint of the hinge reinforcement arranged to account for 40% of steel, slide The remaining 60% of the bearing steel is arranged along the longitudinal direction. Because of the resistance of finished multi-angle hinge to slide ball bearing steel, anti-torque generated by the angle of rotation torque hinge at the center of the west, as the vertical force on the hinge. Under the action of the force N in the hinge will produce a concrete crack tension. Each function on the principle structural inspection should not appear at all interfere with each other, consider earthquakes seismic dynamic slide bearings on the bridge during use, shall be subject to "minor earthquake, moderate earthquake repair, earthquake does not fail" principle to consider. So bearing structural systems for bridges, structures built after the completion of the finished steel ball bearing sliding double entry, settlement if the foundation compaction due to changes in ground subsidence, causing the lower portion of shares received Oh, horizontal displacement and rotation and so on. To the upper structure, acting on the load bearing construction, and function of a great difference in the load after the completion of the construction of the bridge, in the study of the function bearing, the sliding bearing effect must be considered in the construction of external influences Fulcrum displacement and rotation effects will occur, should be based on the current seismic code provisions important to get guarantees for the seismic performance seismic dynamic structure around the bearing structure constant load when the upper structure acting as the main load, as a modern functional requirements a seat, having a variety of structures, if in Figure 1-2. The so-called structure is composed of bearing itself among the members of each force transfer and absorption relative deformation of the structure. There are vertical dead loads, live loads (including impact) and temperature changes, concrete shrinkage and creep effects, slide bearings prestressed etc. Once interference, but also the entire bridge structure should be designed system. Finished multi-directional sliding spherical steel ball bearing steel bearing _ _ sliding design development provided by the manufacturers free HaoTong Engineering Rubber Co., Ltd. Hengshui. Hengshui HaoTong Engineering Rubber Co., Ltd. (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 work into the brilliant, for a better future!