Prefabricated laminated anti-collision wall for urban viaduct and construction method thereof

Abstract

The invention relates to the technical field of bridge structures, in particular to a prefabricated laminated anti-collision wall for an urban viaduct and a construction method thereof. The anti-collision wall is formed by connecting inner and outer prefabricated concrete wall panels through a cage-shaped steel skeleton, and a cavity is formed in the middle. At the construction site, vertical connection steel bars are reserved in the surface of a bridge deck, the prefabricated laminated anti-collision wall is hoisted to a predetermined position from top to bottom, during the hoisting process,the reserved vertical connection steel bars protrude into the cavity of the prefabricated laminated anti-collision wall, to be lapped and connected with vertical ribs of the cage-shaped steel skeleton, and the prefabricated laminated anti-collision wall is integrated with the bridge deck by pouring concrete into the cavity. The prefabricated laminated anti-collision wall is prefabricated in factory, the pouring quality of the inner and outer concrete wall panels is guaranteed, the processes of on-site mould erecting and demoulding are eliminated, and most of the on-site bars operation is reduced. Compared with the traditional cast-in-place construction method, the on-site construction speed is greatly improved, the construction period is shortened, and the appearance quality and the personal safety of workers are more easily guaranteed.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to a prefabricated composite anti-collision wall for urban viaducts and a construction method thereof. Background technique [0002] At present, with the increasing number of urban vehicles, the smoothness of the main traffic roads in the city is extremely important, and the viaduct often plays a role in urban traffic, carrying a lot of traffic pressure, and its cleanliness and beauty are also important for the appearance of a city. reflect. [0003] Therefore, in the construction or expansion of urban viaducts, the construction period and construction quality are often the focus of decision-makers. However, traditional anti-collision walls on both sides of viaducts generally adopt the cast-in-place construction method, which requires complex processes such as steel bar binding, installation of pipeline embedded parts, formwork on both sides of the support, pouring concre...

AI Technical Summary

Problems solved by technology

However, traditional anti-collision walls on both sides of viaducts generally adopt the cast-in-place construction method, which requires complex processes such as steel bar binding, installation of pipeline embedded parts, formwork on both sides of the support, pouring concrete, maintenance, and formwork removal. The construction efficiency is low and the construction period is long. Causes continuous traffic congestion and restricts local economic and social development; and the anti-collision wall is narrow and wide, the quality of on-site pouring is not easy to guarantee, and the phenomenon of honeycomb pockmarks on the concrete surface often occurs, which seriously affects the aesthetics of the anti-collision wall and the durability of the later period It requires frequent maintenance and renovation, resulting in a large waste of human and financial resources; in addition, during on-site construction, workers need to install and dismantle the formwork at high altitude, which is easy to fall and cause safety accidents, and there is a great potential safety hazard

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