Concrete beam-STC combination bridge-face structure and construction method thereof

Abstract

The invention discloses a concrete beam-STC combination bridge-face structure and a construction method thereof. The technical problems that an existing structure is unreasonable, the material performance is free of high quality, the construction technology is low in efficiency, and the structure function is incomplete are mainly solved. The concrete beam-STC combination bridge-face structure and the construction method thereof in the technical scheme are characterized in that the concrete beam-STC combination bridge-face structure comprises a beam top layer (1), an STC layer (2) and bolt nails (11), wherein the two ends of the bolt nails (11) are fixedly connected with the beam top layer (1) and the STC layer (2) respectively, and a body of the beam top layer (1) is a concrete structure layer; the bolt nails (11) are implanted into the upper surface of the beam top layer (1), the upper portions of the bolt nails (11) protrude out of the upper surface of the beam top layer (1), and the height, protruding out of the upper surface of the beam top layer (1), of the upper portions of the bolt nails (11) is smaller than the thickness of the STC layer (2); the STC layer (2) is laid on the beam top layer (1) to form the whole concrete beam-STC combination bridge-face structure. The concrete beam-STC combination bridge-face structure is mainly applied to bridge engineering construction and later stage maintenance and repairing construction of bridge engineering.

Description

technical field [0001] The invention relates to a concrete beam-STC composite bridge deck structure and a construction method thereof, in particular to a bridge deck structure system formed by combining a concrete beam top panel and super-high toughness concrete (STC). Background technique [0002] At present, concrete beams are widely used on bridges with various spans, and are very important bridge structures for public transportation tasks. However, in the traffic operation of the bridge deck pavement structure of this type of beam, there have been many, very common and serious structural damage problems so far, which to a large extent have an adverse impact on public transportation and cause social and economic losses . [0003] There are currently three main types of concrete girder deck pavement structures, namely concrete structure, asphalt structure, and combined structure of concrete lower layer + asphalt upper layer. [0004] At present, there are common and seri...

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Problems solved by technology

[0006] However, due to the high cost of STC and the difficulty in construction, it is generally paved directly on the steel plate deck of a steel bridge in the form of a thin layer, and the physical and structural properties of the STC and the concrete surface are quite different, and the interaction between them Not very good, so those skilled in the art have never considered how to effectively apply STC to concrete bridge decks or pavements, there is a blank for this application, so there is basically no practice of applying STC to concrete pavements and concrete bridge decks in the prior art

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