Construction Method of Composite Strong Bridge Deck Pavement

Abstract

The invention relates to a construction method for composite strong bridge deck pavement, which includes steps: step 1: measure and set out the line, and carry out pre-embedded bolt sleeve construction in the beam body; step 2: adjust the gap between two sliding formworks by moving the fixing nut on the adjusting screw rod left and right step 3: pour concrete into the hopper; step 4: install the channel steel track; step 5: do roughening and cleaning on the top of the beams on the bridge deck; step 6: pour concrete between adjacent beams to form wet joints ; Step 7: install the vibrating beam on the channel steel track; Step 8: remove the channel steel; The SBS modified asphalt mixture is paved and rolled to form the asphalt surface layer. The beneficial effects of the present invention are: the bottom plate of the pre-embedded bolt sleeve of the present invention is connected with the fixed steel bar of the beam body, and the top is connected with the upper layer of the beam body steel bar, so that the precise positioning of the pre-embedded bolt sleeve can be realized.

Description

technical field [0001] The invention relates to the technical field of bridge deck pavement construction, in particular to a construction method for composite strong bridge deck pavement. Background technique [0002] In recent years, with the rapid development of expressway construction in my country, the expressway has rapidly extended to mountainous areas with complex terrain and geological conditions, and bridges account for an increasing proportion of the total length of the route. With the continuous increase in traffic volume and severe weather, the bridge deck pavement that directly bears the wheel load is facing severe challenges. [0003] Existing high-grade highway bridge deck pavement generally adopts cement concrete with steel mesh sheets as the lower layer of bridge deck pavement, and asphalt concrete is used as the upper layer of bridge deck pavement. However, the reinforced mesh of this kind of traditional bridge deck pavement is easy to "sink to the bottom"...

AI Technical Summary

Problems solved by technology

However, the reinforced mesh of this kind of traditional bridge deck pavement is easy to "sink to the bottom", and the quality is difficult to control. Due to various unfavorable factors such as construction and environment, it will cause cracks, local potholes and other diseases in a short period of time, and even worse. However, due to the backwardness of concrete mix ratio design, concrete mixing, pouring and maintenance technology, a large number of cracks appeared in the early stage after concrete pouring. These diseases seriously affected driving comfort, structural safety and traffic capacity, and caused safety hazards

[0004] Therefore, it is very important to seek a construction method of composite strong bridge deck pavement that can solve the problems of more defects and shorter service life of this traditional bridge deck pavement.

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