Self-balancing reposition bridge damping device

Abstract

The invention discloses a self-balancing reposition bridge damping device. The self-balancing reposition bridge damping device comprises anchor blocks, high-strength cables, a fixed pulley block, high-strength springs, deflecting pulleys, connection rods and steel hoops. The anchor blocks are anchored onto the outer side faces of two sides of a main beam. The steel hoops are attached to a pile body and evenly distributed on the pile body. The fixed pulley block comprises a plurality of pulleys with different diameters. The size of the pulley in the middle is the largest, and the sizes of the pulley towards two sides are reduced gradually. The pulleys are anchored onto the steel hoops through the connection rods. The outer side face of the fixed pulley block after mounting is arc-shaped. The lower ends of the high-strength springs are anchored onto a bearing platform or a base. The deflecting pulleys are arranged on the lower portion of the pile body to enable the high-strength cables to be vertically connected with the high-strength springs. The upper ends of the high-strength cables are anchored onto the anchor blocks on the outer side of the main beam, and sequentially pass the fixed pulley block on the other side and the deflecting pulleys on the same side; the lower ends of the high-strength cables are anchored onto the high-strength springs on the same side. By the device,the problem of excessively large bending moment of the pile body is solved effectively.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a self-balancing reset bridge damping device. Background technique [0002] my country is an earthquake-prone country, and it is not uncommon for bridges to suffer structural damage after earthquake disasters, even falling beams and collapses. As a lifeline project leading to the disaster area, the safety of bridge engineering in the event of an earthquake is directly related to the smooth implementation of post-earthquake rescue and disaster relief, which will have a huge impact on the loss of people's lives and property. [0003] Under the action of the earthquake, the superstructure of the bridge will generate a huge horizontal inertial force (hereinafter referred to as the horizontal force), which will be transmitted to the top of the pier through the support, causing a relatively large relative displacement between the pier beams on the one hand, resulting in The...

AI Technical Summary

Problems solved by technology

However, from the perspective of force analysis, the angle between the stay cable and the vertical direction is relatively small, so that the horizontal restraint effect on the seismic deformation and displacement at the top of the pier is relatively limited, and the concentrated force on the top of the pier is very large, which produces a huge bending force on the lower part of the pier body. moment, the pier body is unevenly stressed, and it is still prone to bending damage

Images