Soft soil foundation bridgehead bumping eliminating device

Abstract

The invention discloses a device for eliminating bumping at a bridgehead of a soft soil foundation. The device comprises a bridge abutment, a soil retaining platform, a tower plate and a stress bracket, the tower plate is arranged between the bridge abutment and the top of the soil retaining platform; the stress support comprises a cross table, a first supporting component and a second supporting component. The cross-shaped table is fixedly connected with the butt strap, one end of the first supporting component and one end of the second supporting component are rotationally connected with the two sides of the cross-shaped table respectively, the other end of the first supporting component and the other end of the second supporting component are rotationally connected with sliding seats, the stress support is in sliding connection with the sliding grooves through the sliding seats, and elastic pieces are further arranged in the sliding grooves. The elastic piece abuts against the end of the sliding base. By the adoption of the design, the stress support is arranged between the approach slab and the soil retaining platform, impact force acting on the approach slab is counteracted through the stress support, the phenomenon that the baffle settles and forms slab staggering with an embankment is avoided, meanwhile, the spherical support is arranged between the bridge abutment and the approach slab, impact force acting on the connecting position of the approach slab and the bridge abutment is reduced, slab staggering is avoided, and the safety of the embankment is improved. The driving safety is influenced.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a device for eliminating vehicle jumping at the bridge head on soft soil foundation. Background technique [0002] The road-bridge transition section is a cancer that restricts the overall rapid development of road traffic, and vehicle jumping at the bridge head has become a worldwide problem. The main factors causing the vehicle jump at the bridge head are: uneven settlement, sudden change in stiffness, vehicle speed and the anti-vibration performance of the vehicle itself. As far as urban road conditions are concerned, it is mainly caused by uneven settlement at the junction between flexible roads and rigid structures due to different stiffnesses, resulting in staggered platforms. There are differences in the composition materials, stiffness, strength, and expansion and contraction of bridges and subgrade pavement, and concentrated stress is easy to form when the br...

AI Technical Summary

Problems solved by technology

For example, the installed bridge head will break with the settlement of the embankment, and then lose the proper height transition and bearing capacity, endangering driving safety

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