Composite material assembled type pedestrian bridge

Abstract

The invention provides a composite material assembled type pedestrian bridge which is composed of longitudinal beams, cross beams, inclined struts, a bridge deck and railings, wherein the longitudinalbeams, the cross beams and the inclined struts from a main framework of the pedestrian bridge, the longitudinal beams serve as a stressed main body, a layer of bridge deck is laid on the main framework, and the railings are mounted on the side surfaces of the main framework so as to protect the safety of pedestrians. The composite material assembled type pedestrian bridge meets all performance indexes of a common pedestrian bridge, also has the advantages of light weight, high strength, corrosion resistance and the like, can reduce the structural dead weight, reduce loads borne by lower structures as well as resist to corrosion of harmful substances in severe environments, and has a simple structural form. Construction processes are as follows: all components are prefabricated in factories and are assembled into a whole bridge, and then, the whole bridge is transported to a construction site and hoisted to a specified bridge position, so that the construction time is saved, the construction is convenient, and the site traffic is not affected. The composite material assembled type pedestrian bridge is mainly convenient for pedestrians to pass through, is suitable for serving as a small-span urban overpass or landscape bridge, and can also be erected in severe environments.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a composite material assembled pedestrian bridge. Background technique [0002] With the rapid development of the economy and the ever-changing changes in building materials, the safety, applicability, durability and other properties of buildings have been paid more and more attention. Steel and concrete, the two most widely used building materials in the field of civil engineering, have obvious disadvantages while making important contributions to engineering construction. On the one hand, the structures made of these two materials have a large dead weight and a long construction period; on the other hand, the structures under harsh conditions, due to the corrosion of steel bars, will significantly shorten the service life, and the cost of repairing and replacing reinforced concrete structures Very high, which will bring a series of security and economic problems. [0003...

AI Technical Summary

Problems solved by technology

On the one hand, the structures made of these two materials have a large dead weight and a long construction period; on the other hand, the structures under harsh conditions, due to the corrosion of steel bars, will significantly shorten the service life, and the cost of repairing and replacing reinforced concrete structures Very high, which will bring a series of security and economic problems

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