Large-span recessed fish-belly type combined reinforced truss structure and installation method thereof

Abstract

The invention relates to a large-span recessed fish-belly type combined reinforced truss structure and an installation method thereof. The large-span recessed fish-bellied type combined reinforced truss structure is a special large-span truss, and comprises positioning latticed columns, arched main trusses, modeled main trusses, reinforced-modeled secondary trusses, light modeled secondary trusses, cantilever main trusses and truss connecting rods arranged among the trusses. The large-span recessed fish-bellied type combined reinforced truss structure has the beneficial effects that more large-span recessed fish-bellied type combined light truss structures can be connected in parallel to form a large-area roof with two thick-heavy ends and a light-thin middle part, and the structure is complex and more stable than a fish-belly type truss with a large middle part and two small ends; the recessed fish-bellied modeling of the whole trusses can be controlled according to triangular trussesat two ends of the secondary trusses and the size and the length of middle single chord rods; every two trusses share one main truss, and connecting rods are crossingly connected, so that the whole roof truss forms a whole body with reasonable stressing and attractive modeling; the large-span recessed fish-belly type combined light truss structure and the existing fish-belly type truss structureare similar in structure, but different in modeling, and on the basis of the shared main trusses, the secondary trusses are crossingly connected by upper-chord and lower-chord connecting rods, so thatall the main and secondary trusses form a whole body.

Description

technical field [0001] The invention relates to the technical field of large-scale roof trusses, in particular to a large-span sunken fish-belly combined reinforced truss structure and an installation method thereof. Background technique [0002] With the continuous development of the domestic economy, flyovers, corridors, and large exhibition halls continue to emerge, and long-span roof trusses of various shapes emerge in endlessly; It is related to the safety and comfort of the pedestrians it carries. The traditional fish-belly truss has a relatively simple shape, and the middle part of the truss is relatively heavy. At the same time, when forming a long-span roof truss, the amount of steel used is large, which is uneconomical. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a large-span sunken fish-belly composite reinforced truss structure and its installation method. Above, the secondary tru...

AI Technical Summary

Problems solved by technology

The traditional fish-belly truss has a relatively simple shape, and the middle part of the truss is relatively heavy. At the same time, when forming a long-span roof truss, the amount of steel used is large, which is uneconomical.

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