Prefabricated asphalt concrete steel bridge deck pavement structure and method

Abstract

The invention discloses a prefabricated asphalt concrete steel bridge deck pavement structure. The prefabricated asphalt concrete steel bridge deck pavement structure is characterized in that the structure comprises an anti-corrosion layer painted on a steel bridge deck, a waterproof layer painted on the anti-corrosion layer, a first bonding layer sprayed on the waterproof layer, an asphalt concrete lower surface layer laid on the first bonding layer, a second bonding layer sprayed on the asphalt concrete lower surface layer and a prefabricated asphalt concrete upper surface layer laid on the second bonding layer. Prefabricated and prehensile asphalt concrete is used as a main pavement layer, the concrete is made to have good deformation compliance, so that cracks are avoided, and the prefabricated asphalt concrete steel bridge deck pavement structure has good rutting resistance and waterproof performance.

Description

technical field [0001] The invention relates to the technical field of roads and bridges, in particular to a prefabricated asphalt concrete structure used for paving a steel bridge deck and a paving method thereof. Background technique [0002] The steel bridge deck pavement is different from the general road asphalt concrete pavement, it is directly laid on the orthotropic steel bridge deck. Due to the large flexibility of the orthotropic steel bridge deck, and under the joint influence of driving load, temperature, wind load, earthquake and other natural factors, its force and deformation are more complicated than that of highway pavement or airport pavement, especially under the action of heavy vehicle load The local deformation of the steel bridge deck is larger. There will be obvious stress concentration at the welding points of longitudinal stiffeners, longitudinal diaphragms, transverse ribs (or transverse diaphragms) and bridge decks of the bridge deck, which makes ...

AI Technical Summary

Problems solved by technology

The problem of interlayer bonding between SMA concrete and steel plates cannot be ideally solved. Ordinary modified asphalt has a low viscosity, resulting in insufficient shear resistance of concrete and prone to slippage.

SMA concrete needs vibration rolling at the same time, and it is very easy to cause insufficient compaction under the condition of bridge deck resonance, which will cause early diseases.

Images