Steel-wood mixed crossed string arch structure

Abstract

The invention discloses a steel-wood mixed crossed string arch structure which comprises an upper string single-layer wood arch shell and a lower string inhaul cable assembly. The upper string single-layer wood arch shell is formed by intersecting two sets of wood arches which are obliquely arranged in parallel in a crossed manner, and the two ends of each wood arch are connected with frame beamsrespectively. The lower string inhaul cable assembly comprises a plurality of lower string inhaul cables and supporting rods, the lower string inhaul cables are arranged below the upper string single-layer wood arch shell, the two ends of each lower string inhaul cable are connected with the frame beams respectively, the lower string inhaul cables and cross arches of the upper string single-layerwood arch shell are arranged in a staggered manner, the supporting rods are arranged between the lower string inhaul cables and the corresponding wood arches and arranged at intervals along the lowerstring inhaul cables, and the lower string inhaul cables, the supporting rods and the corresponding wood arches are matched to form a space three-dimensional truss structure. According to the structure, the horizontal thrust at an arch shell support can be effectively reduced, so that the purpose of reducing the size of a lower supporting component is achieved, meanwhile, the stress level of the arches can be reduced through the arrangement of the inhaul cables, the stress of the upper string arch is more uniform, and the overall structural stability of the upper string arch is better.

Description

technical field [0001] The invention belongs to the technical field of building structure engineering, and in particular relates to a novel long-span steel-wood hybrid cross-string arch structure. Background technique [0002] The steel-wood mixed string beam / arch refers to a hybrid member in which the upper chord is made of wooden beams / arch, the lower chord is made of tensioned steel cables, and the struts can be made of wood or steel rods. The roof structure system composed of multiple parallel steel-wood string beams / archs has been used in many swimming pools in China, such as Guizhou Rongjiang Swimming Pool and Changchun National Fitness Center Swimming Pool. [0003] The steel-wood stringed arch structures that have been built at present are usually arranged in parallel arrays of multiple planar stringed steel-wood arches. When the column distance is large, the existing parallel arrayed planar stringed steel-wood arches need to arrange large cross-section support purli...

AI Technical Summary

Problems solved by technology

[0003] The steel-wood stringed arch structures that have been built at present are usually arranged in parallel arrays of multiple planar stringed steel-wood arches. When the column distance is large, the existing parallel arrayed planar stringed steel-wood arches need to arrange large cross-section support purlins to maintain its stability. It will cause waste of materials and cause the scale mismatch between primary and secondary components

The steel-wood tension arch structure that has been built so far has many intersection nodes on the upper arch, and the construction is more complicated, and the lower string cables are arranged in parallel with the upper string arch, so the cable layout is relatively messy visually.

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