Steel and ultra-high performance concrete combined bridge deck structure

Abstract

The invention relates to a bridge deck structure of a steel bridge, in particular to a steel and ultra-high performance concrete combined bridge deck structure, comprising a steel bridge deck, an ultra-high performance concrete layer is coated above the steel bridge deck, a bridge deck pavement layer is coated above the ultra-high performance concrete layer, and the ultra-high performance concrete layer is internally provided with reinforced bars. The steel and ultra-high performance concrete combined bridge deck structure has the advantages of small construction height, large stiffness, good binding performance between combined layers, good durability, good fatigue resistance, little vehicle impact and the like.

Description

technical field [0001] The invention relates to a construction detail of a bridge structure, in particular to a deck structure of a steel bridge. Background technique [0002] The orthotropic steel deck was first adopted in Germany in 1948. Over the past 60 years, this light steel deck has become the preferred deck type of steel bridges (especially super-large bridges). After decades of engineering construction practice, the current orthotropic steel bridge deck pavement schemes are mainly developed into the following four categories, namely: (1) hot-mix asphalt concrete or modified dense-graded asphalt concrete scheme; (2) high-temperature mixing Pouring asphalt concrete scheme; (3) asphalt mastic concrete scheme; (4) epoxy resin asphalt concrete scheme. The existing conventional steel bridge deck structure forms are as follows: figure 1 As shown, the existing four types of asphalt concrete bridge deck pavements of steel bridge decks are expensive, and at the same time ha...

AI Technical Summary

Problems solved by technology

This idea focuses on improving the working state of the bridge deck by increasing the structural size. Although it can achieve a certain effect, it cannot fundamentally solve the problem of fatigue damage at the weld between the deck and the longitudinal ribs, and the cost is relatively high. , increasing the thickness of the bridge deck can not fundamentally solve the problem that the pavement layer is easily damaged

Images