Anti-seismic device with overturn-preventing function for road bridge

Abstract

The invention belongs to the technical field of bridges and discloses an anti-seismic device with an overturn-preventing function for a road bridge. The anti-seismic device comprises a bridge body. Anupper bridge pier is inserted in the bottom of the bridge body; an inner cavity of the bridge body is filled with an elastic filling layer; an inner cavity of the elastic filling layer is provided with a seismic-reduction combined plate; the seismic-reduction combined plate is installed at the top end of the upper bridge pier; a transverse seismic-reduction mechanism is arranged at the bottom ofthe bridge body and connected to the outer wall of the upper bridge pier in a sleeving mode; a connecting pier plate is arranged at the bottom of the upper bridge pier; a lower bridge pier is arrangedat the bottom of the connecting pier plate; a base is arranged at the bottom of the lower bridge pier; and overturn-preventing mechanisms are arranged between the bridge body and the connecting pierplate as well as between the connecting pier plate and the base correspondingly. The good protecting effect on the road bridge is achieved; the phenomenon that the bridge body is inclined due to unbalanced force bearing can be also prevented effectively even during an earthquake; the structure is simple, the anti-seismic effect of the road bridge is strengthened greatly, and the service life of the road bridge is prolonged greatly.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to an anti-seismic device for highway bridges with an anti-overturning function. Background technique [0002] As an important transportation hub, the bridge project damaged in the earthquake will seriously block the lifeline leading to the disaster-stricken area, affect the timeliness of disaster relief, and bring great inconvenience to disaster relief and post-disaster reconstruction. At the same time, with the continuous development of the current social economy, people's living standards are also constantly improving, and the pursuit of quality of life is also getting higher and higher. Bridges are also infrastructure in daily life, with a wide distribution and strong publicity. , Applicability and safety are the prerequisites for ensuring the convenience it provides to people. As one of the countries with frequent earthquakes, my country's seismic performance of bridges has be...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of anti-seismic device with anti-overturning function for highway bridges, to solve the problem in the above-mentioned background technology that when an earthquake occurs, the bridge not only produces a large vertical force but also a horizontal force, which makes the prefabricated bridge The horizontal displacement and vertical displacement of the slab, when the displacement exceeds the laying width of the prefabricated bridge slab on the pier, and the bridge at this time does not have an anti-overturning device, it is easy to cause an overturning accident. Not only the bridge is damaged, but also the bridge above and below the bridge of pedestrians and vehicles will have major safety accidents

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