Double-curved arc-shaped large-span steel truss and manufacturing method thereof

Abstract

The invention relates to a double-curved arc-shaped large-span steel truss and a manufacturing method thereof, and belongs to the technical field of construction steel structures. The double-curved arc-shaped large-span steel truss comprises two landing section Y-shaped columns, a first truss body and a second truss body, the vertical faces where the two landing section Y-shaped columns are located serve as symmetrical faces, and the first truss body and the second truss body are symmetrically arranged along the symmetrical faces; and the ends of the same sides of the first truss body and thesecond truss body are connected with the landing section Y-shaped columns on the same sides correspondingly, the first truss body and the second truss body each comprise a single-curved truss, a double-curved truss and a transition section bending and twisting box, and the two ends of the single-curved trusses are outwards sequentially connected with the double-curved trusses and the transition section bending and twisting boxes. The butt-joint mode of welding or combination of bolting and welding is adopted, and thus the mounting difficulty is lowered; through the idea of division group welding and then general assembling, welding deformation is effectively controlled, and the dimension precision of components is improved; and a simulation pre-assembling method is used after joint inspection of physical pre-assembling and simulation pre-assembling, the manufacturing and assembling precision is effectively ensured, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a hyperbolic arc long-span steel truss and a manufacturing method thereof, belonging to the technical field of building steel structures. Background technique [0002] For large-span buildings, such as airport terminals, gymnasiums, and exhibition venues, the roof is often composed of multiple parallel trusses, purlins, or secondary arches, and the common roof trusses are inverted triangular tube trusses or vertical plane tube trusses, and Most of them are plane arches, and the whole truss is supported by multiple steel columns. However, for the architectural design of the terminal building where the roof and the facade need to be coherent to form an overall curved appearance, the above structure cannot be handled well at the intersection of the roof and the facade. The upper chord of the traditional truss is a circular tube, which intersects with the roof steel beam or the secondary arch, and the connection node processing is...

AI Technical Summary

Problems solved by technology

However, for the architectural design of the terminal building where the roof and the facade need to be coherent to form an overall curved appearance, the above structure cannot be handled well at the intersection of the roof and the facade

The upper chord of the traditional truss is a circular tube, which intersects with the roof steel beam or the secondary arch, and the connection node processing is more cumbersome

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