Damping bridge structure

Abstract

The invention discloses a damping bridge structure which comprises arc-shaped elastic steel plates and energy-dissipation dampers. The tops of the arc-shaped elastic steel plates are installed inside grooves formed in a bridge body, elastic columns and high-energy springs are alternatively connected inside the arc-shaped elastic steel plates, the upper ends of the energy-dissipation dampers are connected with the bottoms of the arc-shaped elastic steel plates, the lower ends of the energy-dissipation dampers are connected with lead core rubber blocks, the lead core rubber blocks are arranged inside limiting spaces, the limiting spaces are formed in grooves of bridge piers, limiting blocks are installed at two ends of each limiting space, steel balls are installed at the bottoms of the lead core rubber blocks and the limiting spaces, and moving cavities are reserved between the lead core rubber blocks and the limiting blocks. Part of energy produced by a bridge body of the damping bridge structure in fierce shaking when an earthquake occurs is absorbed through deformation of the arc-shaped elastic steel plates, so that bridge collapse does not occur.

Description

technical field [0001] The invention belongs to the technical field of shock absorption, and in particular relates to a shock absorption bridge structure. Background technique [0002] Earthquake, also known as ground motion and ground vibration, is a natural phenomenon in which vibration is caused by the rapid release of energy from the earth's crust, during which seismic waves are generated. The compression and collision between the plates on the earth will cause the edge of the plate and the inside of the plate to displace and break, which is the main cause of the ground vibration (that is, earthquake). The place where an earthquake begins is called the epicenter, and the ground directly above the source is called the epicenter. The place where the ground vibration of a destructive earthquake is the strongest is called the episeismic area, and the episeismic area is often the area where the epicenter is located. Earthquakes often cause serious casualties, and can cause ...

AI Technical Summary

Problems solved by technology

The functional failure of bridges often causes damage to the transportation system that is difficult to recover within the shortest time, not only brings huge losses to the national economy, but also brings many difficulties to the earthquake relief work after the earthquake

The shock absorption effect of the current shock absorbing bridge structure is not very good. Generally, rubber blocks and springs are installed between the bridge body and the bridge piers. The shock absorption effect is very limited, and the earthquake is not only a vertical energy wave, but also accompanied by Transverse energy waves, and the current shock-absorbing bridge structures rarely deal with the problem of bridge deflection caused by transverse energy waves

Images