Construction method of skew spoke type cable truss structure

Abstract

The invention discloses a construction method of a skew spoke type cable truss structure. The construction method sequentially comprises the following construction steps: laying an upper ring cable; a radial lower-layer cable system, a lower-layer cable system, an upper-layer cable system and an additional cable are sequentially laid; the upper ring rope is lifted; laying and lifting a lower ring cable; the supporting rod is installed between the upper ring cable and the lower ring cable; supporting rods between the radial lower-layer cable system and the oblique crossing type upper-layer cable system are installed in batches; the oblique crossing type upper layer cable system is connected with the outer ring beam; and mounting and tensioning the radial lower-layer cable system. The construction forming method of assembling the inner ring cable through the supporting frame, lifting the radial cable in groups and tensioning the lower radial cable is adopted, the construction measure of erecting an all-round scaffold in a large-span space structure is avoided, the construction progress is accelerated, and the construction cost is reduced; the inner ring cable and the cable system are lifted in batches, the single lifting weight is reduced, the requirement for lifting equipment is lowered, and the stability and safety of structure installation are improved.

Description

technical field [0001] The invention belongs to the technical field of prestressed space structure construction, and particularly relates to a construction method of a skewed wheel-spoke cable truss structure. Background technique [0002] The skewed spoke type cable truss is a very special prestressed space structure system. It is formed by the middle inner ring cable through the diagonal upper cable system, the radial lower cable system and the outer ring beam tension to form a whole structure. The upper-layer cable system includes cross-arranged upper-layer cable system and lower-layer cable system. Different from the conventional cable truss structure, the skewed cable system in the skewed spoked cable truss structure enables the structure to obtain better lateral stiffness and is more conducive to the stability of the structure. However, the oblique upper-layer cable system and the radial lower-layer cable system of the skewed spoke-type cable truss structure are not a...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a construction method for a skewed spoke-type cable truss structure to solve the complex construction operation of the skewed spoke-type cable truss structure in the above-mentioned background technology, high requirements for lifting equipment, difficulty in controlling the stability of the installation process, and affecting construction quality issues

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