Prestress aluminum-concrete combined truss beam and construction method thereof

Abstract

A prestress aluminum-concrete combined truss beam is characterized in that at least one truss beam body of the prestress aluminum-concrete combined truss beam adopts a prestress aluminum alloy-concrete combined truss beam body; preferably, concrete is poured in a pressed upper main truss of the prestress aluminum-concrete combined truss beam, prestress ribs are arranged in the inner spaces of a lower main truss and oblique rods, and prestress anchorage points are arranged at the nodes of the upper main truss; and preferably, the prestress aluminum-concrete combined truss beam comprises a force bearing panel system, the longitudinal prestress aluminum alloy-concrete combined truss beam bodies, transverse supports and a prestress rib anchoring system, and the upper main truss and the lower main truss are arranged to be double-layer or single-layer panel structure systems. According to the prestress aluminum-concrete combined truss beam, under the condition that the prestress aluminum-concrete combined truss beam is the same as a traditional truss beam in bearing work condition, the self-weight of the prestress aluminum-concrete combined truss beam is decreased obviously, the service life is prolonged obviously, the manufacturing cost of the prestress aluminum-concrete combined truss beam is reduced, the mounting period is shortened, and the maintenance cost is reduced greatly.

Description

technical field [0001] The invention relates to a prestressed aluminum-concrete composite truss beam and a construction method thereof, which are used for building girder bridges or building structures, especially a novel bearing structure of aluminum alloy-concrete composite truss bridges, belonging to bridge engineering and construction engineering field. [0002] The prestressed aluminum-concrete composite truss beam according to the present invention can be a prefabricated part, or can be welded or assembled on site, can be a composite truss, or can be a multi-frame composite truss connected by cross braces, and its structure is suitable for All bridges and building structures bearing structures have nothing to do with the site selection of the bridge construction, the geological structure of the bridge construction site, the topography of the bridge construction site, and the hydrological environment of the bridge construction site. [0003] In other words, the present i...

AI Technical Summary

Problems solved by technology

[0007] However, in the prior art, there has never been a bridge bearing truss with a prestressed aluminum-concrete structure as a member element

In fact, in the existing technology, those skilled in the art have formed the inertia of traditional thinking such as steel truss or steel-concrete composite structure, and it is difficult to overcome the prejudice of traditional technology, and it is even more difficult to think of prestressed aluminum-concrete composite structure as The main body of the bridge bearing truss

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