[Grid] it should also be noted holder: flat pressure bearing construction method now commonly used not effectively guarantee freedom in the horizontal direction. In addition, the grid is generally supported on beams, columns or frame, the grid with its lower support structure should be working together, they are part of a continuous coordination deformation, internal forces, support reactions and stiffness distribution of distribution are concerned. The simple and effective method is the elastic stiffness of the equivalent stiffness constraint lower support structure as a grid corresponding bearing, direct use of space truss displacement method the nodal displacements and member forces. [Grid] When bearing span larger size complex grid (shell) structure, often depending on the structure (including the lower support structure), using a variety of differences in the force flow bearing forms, such as in the same project can be fixed, always bound and dichroic constraint (sliding bearings); vertical and horizontal seat bearing combined. [Grid] designers can combine the characteristics of bearing structure and optimization, flexible use bearing types and boundary conditions consistent with the actual structure. [Seat] through a large grid project case study, the grid (net shell) structure design is safe, affordable, high-ball grid bearing money., The most critical factor is that the selected first supporting structure, bearing type and Boundary conditions are reasonable for this specific design, we try to avoid the upper grid (net shell) structure and the lower support system separate analysis, design, especially when bearing with respect to the displacement of the lower part of the grid structure is difficult by an elastic restraint When the method of simulation, it should be supported by the structure and the upper grid (net shell) together with the whole modeling, computational analysis, high damping grid bearing assured purchase! so that the calculated result is more realistic. [Grid] grid bearing acceptance: 1) Acceptance grid divided into two steps, the first grid is still lifting the state of acceptance; the second step is independent grid load handling charge acceptance after hanging. 2) Check the grid weld appearance quality should meet the design requirements and specification standards. 3) Four frontier fortress rod (tube that is closed when welding), 24h after welding ultrasonic inspection reports, and repair records. 4) Check the grid bearing weld quality. 5) steel truss lifting equipment unloading. [Grid bearing grid observe the deformation of. Unloading grid lifting part should be slow, simultaneously, to prevent local deformation grid. 6) various down chain close with separately removed, grid supports, steel truss restore the natural state. 7) Check the grid for each seat by the force of circumstances; check the grid of camber or camber degrees. 8) Check the overall size of the grid. [Grid] quality standards [grid bearing holder] (1) ensure that the project shall meet the following requirements: 1) High Altitude in Bulk installation grid structure, node parts and bars, should meet the design requirements and current national standards regulations. Deformed parts and rod must be corrected. Inspection method: observe the inspection and quality inspection certificates, factory certificate or test report. [Seat] grid) reference axis position, capitals surface elevation and concrete strength, it must meet the design requirements and current national standards. Inspection method: check retest records and test reports. Grid bearing | ball bearings cost-effective grid |. Damping ball bearings provided by the Hengshui-Engineering Rubber Co., Ltd.. Hengshui-Engineering Rubber Co., Ltd. (www.grgcxj.cn) (www.grgcxj.cn) is specialized in "earthquake spherical steel bearing, one-way two-way sliding spherical steel bearings, ball joints fixed elastic damping bearings," the enterprises, companies adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Wang.