Assembled type reinforced concrete bridge construction technology

Abstract

An assembled type reinforced concrete bridge construction technology is characterized by comprising the steps that A, a plurality of reinforced concrete transverse block bodies (1), a plurality of reinforced concrete longitudinal block bodies (5), a plurality of reinforcing steel bars (8) with the two ends being provided with threads in a tapping mode, nuts matched with the threads, a capping beam (16) with holes (13), a rubber support (17), a bridge deck slab (11), cement, sand stone, a gabion box (15), heavy wires, plain round bars, soilbags (14), tapping screws and a steel wire mesh (18) are prepared; B, ground treatment is carried out; C, bridge pier and abutments (12) are assembled; D, the capping beam (16) is moved onto the bridge pier and abutments (12) by the adoption of a derrick mast method; E, the bridge deck slab (11) is moved onto the rubber support (17) of the capping beam (16) by the adoption of a derrick mast method; F, cement mortar is poured into gaps among block bodies of the bridge pier and abutments (12) and gaps between the reinforcing steel bars (8) and the block bodies; G, the steel wire mesh (18) is nailed on the surfaces of the bridge pier and abutments (12), and a fine aggregate concrete layer is further sprayed.

Description

1. Technical field [0001] The invention belongs to building structure technology, and specifically relates to a reinforced concrete bridge mainly used for small and medium spans composed of a rapid prototyping foundation, an assembled prefabricated concrete block bridge abutment, an assembled cover beam and a bridge deck. 2. Background technology [0002] During the 2008 Wenchuan Earthquake, the 2013 Sichuan Lushan County Earthquake, and other major earthquakes, due to the lack of steel connections between the blocks, most of the bridges built with blocks were seriously damaged, and the bridge piers and girders failed more often. To resume traffic, it is urgent to repair or quickly rebuild in a very short period of time. Most of my country is in an earthquake-resistant fortified area, so the bridge should have better seismic performance after completion; the flood in the three northeastern provinces and Sichuan Province in the summer of 2013 damaged the bridge The failure of p...

AI Technical Summary

Problems solved by technology

[0003] The prefabricated construction method can save a lot of formwork support wood, reduce labor intensity, shorten the construction period, and significantly speed up the construction of the bridge. The bridge piers are built by masonry, which greatly affects the construction speed of the bridge and increases the construction cost

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