Connection method of viscous damper for achieving earthquake resistance of long-span bridge
A viscous damper and large-span technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of increased construction cost and difficult installation, and achieve the goals of prolonging service life, low installation cost and reducing installation size Effect
Active Publication Date: 2014-05-21
中铁桥研科技有限公司 +2
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[0009] (2) The hooks, pulley mechanism and balance counterweight for lifting the outer cylinder liner of the damper are set on the pier tower column. It is necessary to preset the installation point in the case of high-altitude operations, and the installation is difficult. At the same time, the pulley mechanism And the setting of balance counterweight increases the construction cost
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[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0034] see figure 1 , figure 2 , image 3 with Figure 4 As shown, the connection mode of the viscous damper used for anti-seismic of long-span bridge provided by the embodiment of the present invention includes viscous damper 2 , left mounting plate 6 , right mounting plate 7 and liftable platform 3 . The viscous damper 2 includes a piston rod 1 and a cylinder 4 with a piston 11 inside. One end of the piston rod 1 is provided with a left hinged seat 14, and the other end is provided with a right hinged seat 15. The opposite sides of the cylinder 4 are respectively A left end cap 10 and a right end cap 13 are provided, and the piston rod 1 passes through the left end cap 10 , the piston 11 and the right end cap 13 . A left seal 9 is provided between the piston rod 1 and the left end cover 10 , and a right seal 12 is provided between the p...
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The invention discloses a connection method of a viscous damper for achieving earthquake resistance of a long-span bridge and relates to the technical field of earthquake resistance of engineering structures. The viscous damper, a left installation plate, a right installation plate and a liftable pedestal are included. The connection method includes the steps that the left installation plate is arranged at a corresponding position of a girder through embedded parts, the right installation plate is arranged at a corresponding position of the girder through embedded parts, and the liftable pedestal is arranged at a corresponding position of a tower pier column through embedded parts; the viscous damper is fixedly connected with the liftable pedestal through hoops, and the height of the liftable pedestal is adjusted so that the viscous damper can be driven by the liftable pedestal to ascend or descend to be adjusted to a connection position; one end of a piston rod is connected with the left installation plate through a left hinged support, and the other end of the piston rod is connected with the right installation plate through a right hinged support. According to the connection method, installation is easy, installation cost is low, the problem that a sealing element is unilaterally stressed is solved, the service life of the viscous damper is prolonged, installation dimensions are small, and earthquake resistance is good.
Description
technical field [0001] The invention relates to the field of anti-seismic technology of engineering structures, in particular to a connection mode of viscous dampers used for anti-seismic of long-span bridges. Background technique [0002] With the frequent outbreak of natural disasters such as earthquakes, bridge anti-seismic disaster prevention devices have attracted the attention of the industry. There are many types of existing bridge anti-seismic devices, such as metal dampers, friction dampers, viscous dampers, viscoelastic Damper etc. The viscous damper is a speed-dependent damping device, which has the advantages of high damping efficiency, low static stiffness, and strong energy dissipation capacity. Viscous dampers are widely used in long-span bridges. [0003] At this stage, the span of the bridge is increasing continuously. In order to ensure that the long-span bridge has sufficient seismic capacity, the stroke, tonnage and weight of the viscous damper installed...
Claims
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Inventor 汪正兴王波王天亮汪双炎刘鹏飞吴志勇李荣庆李东超柴小鹏王翔张奇兵宋长兵
Owner 中铁桥研科技有限公司