Front seat can be installed out of the box to check the packing list, including parts lists, copies of inspection reports, bearing product certification secretary install conservation rules, the construction unit shall be arbitrarily rotated after unpacking coupling bolts, and one shall be arbitrarily disassemble bearing, Supports mounting height should meet the design requirements, to ensure that the level and smooth bearing plane. Supports four hinge bearing surface height difference should not be greater than 2mm. Installation and precautions ball bearing. Concrete grade beam bridge and part of the field should not be less than tons C40, special circumstances require approval by the design unit. When installing bearings, bearing plate should be in the next four weeks to adjust the bearing steel template level, and lower bearing plate above the pier top surface of the bottom surface mount 20-50mm identify the location of vertical and horizontal lines, to conform to the design requirements. Filled with epoxy mortar seat cushion underside, foreign general seismic steel truss bearing installation method, commonly used epoxy mortar mix. After hardening epoxy mortar grid damping bearings, bearing corners eradicate temporary steel wedges and fill with epoxy mortar is drawn wedge position. After the installation is complete beam bottom, or in-situ concrete beams formed and after reaching the overall design strength before tensioned prestressed beam, the removal, under the seat plate to prevent the normal rotation of the beam constraint. To this end, in December 1996 by the Xi'an Jiaotong University to study road highway bridge design damping device and method to carry out the research work for the title, the October 2000 General Seismic Design of Highway Bridges, roads and bridges damping design methods, dynamic analysis damping device design verification highway bridge, highway bridges, roads and bridges during the performance damping structure detail, damping device recognized aspects of methods proposed study achieved a pity research. Some of the world's developed countries to hide earthquake, earthquake from bitter proxy fight, and since the 1970s has gradually developed a damping device of the bridge to reduce the impact of earthquakes on the bridge structure, and gradually improve the bridge structure French aircraft designer damping bearings, so far, New Zealand to 1996 has built more than 50 seats brochures device using the bridge, the United States has more than 30 seats, there are more than 150 seats in Italy, Japan and in 1989 began to build the provincial civil Research of system development, to 1996 has built more than 30 seats damping device using a sliding truss bridge bearings, January 17, 1995, the Great Hanshin Earthquake in Japan not only tested the bridge has been built shock damping effect, also found many problems to be further studied. Hao-card holder grid show | shock grid bearing | bearing grid provided by Hao-engineering rubber. Search for "grid bearings, bridge expansion joints, water stop, bridge bearings, rubber bearings, spherical steel bearing" fly suppliers, network operators choose to have a full alliance Certified: Engineering Rubber Co., Ltd. Hengshui HaoTong (www.htgcxj.com), trustworthiness and reliability, "business alliance customer service" on page now click on live chat with us now!