Steel ball bearing slide installation requirements Installation requirements passenger dedicated railway bridge steel ball bearing slide as follows: (1) supporting the bearing pad stone concrete grade of not less than C40, the four corners of the top surface of the stone pad height of not more than 2mm, support pad height stone bearing for easy replacement should be considered if necessary; (2) Prefabricated simply supported box girder bearing installation, the first beam is placed on top of the pier four dynamometer jack, should ensure that each holder of Anti-reaction force and the average of four points difference of not more than 5%; position (3) Supports embedded accurate bolt hole, the hole centerline embedded bolts and angular position deviation is less than 10mm; (4) Prefabricated Simple supported box girder steel ball bearing slide installation process rules; steel ball bearings at the top slip structure, a circular steel frame column using concrete columns, beams and slabs of steel - concrete composite structure, total steel than ordinary steel have greatly reduced the amount of steel, can effectively reduce the project cost. Steel construction has the advantage of its decision will certainly have a strong vitality. Steel structure, manufacturing plant based, dry construction work, short duration, high degree of industrialization, pollution, no construction waste, in line with the development trend of the construction market. With the further development of the steel structure visible way LYQZ seismic tension and compression bearing manufacturers, steel structure worthy of use in multi-storey civil. Steel ball bearing slide member factory processing nodes bolted, high degree of automation, precision is guaranteed, dry operation, easy to control quality, reinforced concrete structure cast in situ, wet work, the quality level of a great relationship with the mechanic. Short construction period: steel factory production, on-site installation, simple process LYQZ seat tension and compression, tension and compression face large supply of multi-seat to seismic LYQZ, construction speed, reinforced concrete structure should be steel banding, formwork, pouring, shock pound, conservation and more procedures, manpower cost, long construction period. Steel ball bearing slide way gravity filling, filling the gap with the lower bearing bolt holes. The central part of the filling process should stand to the surrounding grout from around the steel until the bottom bearing gap filling material was observed with all filled up. Preliminary calculations before grouting should slurry volume required, the number of days the river perfusion practical value should not be excessive and calculation errors, missing the middle of the pulp should be prevented. When the strength of 20Mpa, dismantling steel template, check whether tainted slurry at the point of leakage pulp slurry, if necessary, make up, and then tighten the bolt under the seat, remove each bearing and lower bearing plate connecting angle and connection bolts, remove the temporary jacks, mounting bracket hoardings. Sliding steel ball bearings in order to guarantee the quality of welding, the implementation process must be strictly controlled. Such as welding materials, assembly quality, welder qualifications such as the implementation of process control. Corresponding requirements are as follows: all steel members due to deformation of the assembly and welding quality should be trimmed in a timely manner and meet the relevant technical requirements. Paint, rust, oxidation residue and dirt within the weld groove surface and the surrounding 30mm range must be cleaned, polished groove surface must use grinder. Bevel angle after assembly should be controlled within the technical scope of the drawings, the groove gap: 1.5 ~ 3.0mm universal order bearing seismic tension and compression, the amount of the wrong side of the weld interface should be controlled (t / 10 does not greater than 2mm) within the technical scope. Situ concrete continuous girder bridge with steel ball bearing slide installation process Details: steel ball bearing slide assembly at the factory should be carefully leveling, spend the next bearing webs connecting the stand into a whole; in the stand money, the site should check bearing connection status is normal, but not loose on the lower bearing bolts; carefully chiseling stone bearing pad bearing surface portion in place, remove the debris aside anchor holes, install grout template, with water bearing pad stone surface wet; multi-directional tensile and compressive bearing LYQZ | LYQZ tensile and compressive bearing | Guangrun Guangrun by Hengshui Rubber Company. 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