Externally-wrapped lower chord member and propeller strut web member fabricated truss

Abstract

The invention relates to an externally-wrapped lower chord member and propeller strut web member fabricated truss. The externally-wrapped lower chord member and propeller strut web member fabricated truss comprises an upper chord member, a propeller strut web member and an externally-wrapped lower chord member, the propeller strut web member is arranged above the externally-wrapped lower chord member, the tail end of a propeller strut is arranged in a rod body of the externally-wrapped lower chord member and connected with the lower chord member, the upper chord member is flatly laid above the propeller strut web member and is connected with the propeller strut web member, and the propeller strut web member comprises at least two prefabricated propeller struts and is fabricated by taking a single propeller strut as a basic unit. According to the externally-wrapped lower chord member and propeller strut web member fabricated truss, a method of split prefabrication and on-site fabrication is adopted, transportation and storage yard storage are facilitated, cost is saved, convenience is improved, the construction period is greatly shortened, economic benefits are brought, the externally-wrapped lower chord member and propeller strut web member fabricated truss has wide application prospects, and the development of fabricated buildings is greatly promoted.

Description

technical field [0001] The invention relates to the technical field of concrete structures in civil engineering, in particular to an assembled truss, in particular to an outsourced lower chord herringbone web assembled truss. Background technique [0002] Prefabricated structure is an emerging technology in the construction industry. The production and production of prefabricated components are its important core content. Truss is a commonly used structural form. Prefabricated concrete trusses have been used in engineering as buildings, roof structures and bridge structures. Extensive use. However, the overall prefabricated concrete truss not only takes up a lot of space due to its huge external dimensions, but is often produced on site due to transportation restrictions, and the storage space required for the overall prefabrication of the truss, as well as the complex reinforcement of the truss and the complex mold system Both the cost and the high cost make this process f...

AI Technical Summary

Problems solved by technology

However, the overall prefabricated concrete truss not only takes up a lot of space due to its huge external dimensions, but is often produced on site due to transportation restrictions, and the storage space required for the overall prefabrication of the truss, as well as the complex reinforcement of the truss and the complex mold system And the high cost makes this process flawed, and even compared with the solid beam, the saving of truss material is offset by the cumbersomeness brought by mold cost and complex reinforcement.

In addition, when the span of the truss is large, the on-site open-air cast-in-place production is also affected by factors such as typhoon, heavy rain, and low temperature weather, which also affect the progress

Practice has proved that as a traditional construction method of overall prefabrication, trusses are a bottleneck that seriously restricts the construction period, often resulting in a multiplied construction period, which does not reflect the advantages of prefabricated structures

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