Zero-interference large-span photovoltaic support structure based on prestressed cable truss

Abstract

The invention discloses a zero-interference large-span photovoltaic support structure based on a prestressed cable truss, which comprises columns and a cable system, wherein the columns are arranged in a matrix; the cable system comprises transverse and longitudinal cables; the transverse and longitudinal cables are connected with the columns; two layers of transverse cables and two layers of longitudinal cables are achieved, and the cables are arranged vertically; and prestress is applied to upper transverse cables and lower longitudinal cables. The deformation magnitude of the photovoltaic support structure when a dead load condition is changed to a wind and snow load condition can be controlled, the rigidity of the photovoltaic support structure is improved, and the obstacle is removedfor normal safe use of a photovoltaic module.

Description

technical field [0001] The invention relates to the field of photovoltaic power generation, in particular to a zero-disturbance large-span photovoltaic support structure based on prestressed cable trusses. Background technique [0002] With the vigorous development of the photovoltaic industry, in order to adapt to various complex installation environments such as mountains, water surfaces, and roofs, flexible brackets have gained more and more widespread use due to their advantages such as large spans, high utilization efficiency of mechanical properties of materials, and low cost. Follow and apply. [0003] Photovoltaic modules bear gravity loads, wind loads and snow loads, and transmit them to the cable structure. Most of the existing flexible support schemes are a combination of single-layer cable structure system and rigid frame / truss. Although they can better withstand the vertical gravity load and snow load of the components, they are limited by the structural form o...

AI Technical Summary

Problems solved by technology

[0008] 3. It is impossible to apply prestress, and the initial stress is only generated by its own weight; under the action of wind and snow loads, the structural deformation is large, and it is easy to cause damage such as component falling off, cracking, and hidden cracking;

[0009] 4. The economic span in the north-south direction is limited;

[0010] 5. The mid-span deflection is large, compared with the traditional rigid support scheme, resulting in poor overall project perception

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