Concrete filled steel tube lattice type wind power tower based on corrugated steel web box girder

Abstract

The invention discloses a concrete filled steel tube lattice type wind power tower based on a corrugated steel web box girder, and relates to the technical field of land wind power generation. The system comprises a fan, an upper steel tower cylinder, an annular steel-concrete combined box girder, a lattice type tower and a foundation. The lower portion of each limb piece of the lattice type toweris directly anchored in the foundation, and the uppermost portion of the lattice type tower is connected with the upper steel tower cylinder through the annular steel-concrete combined box girder. Each limb piece of the tower is a prestress steel tube constraint concrete column, and a post-tensioning method is adopted to ensure that each limb piece only bears pressure, so that the compression resistance of concrete and the tensile property of steel are fully utilized; the limb pieces can be segmented according to length of the limb pieces, and each segmented splicing part is provided with ananti-shearing short steel tube; each gusset piece is the corrugated steel web box girder, whether the concrete is poured is selected according to the stress demand, the gusset pieces are connected with the limb pieces through bolts, the structural system adopts wholly an assembly consturction mode, the construction efficiency can be remarkably improved, the construction quality is guaranteed, andthe construction measure cost is reduced.

Description

technical field [0001] The invention relates to the technical field of land wind power generation. Background technique [0002] Wind power is a clean and renewable energy, and more and more countries are vigorously promoting the development of wind power. Wind turbine towers are classified according to their structural forms, and can be divided into lattice towers and cone towers. The main advantages of the lattice tower are low cost, simple manufacture, and convenient transportation, but its disadvantages are large area, long construction period on site, and poor maintenance safety. Due to its simple and beautiful appearance, clear force transmission, simple structure, small footprint and convenient maintenance, the conical tower is the most commonly used structural form for large and medium-sized wind turbines in today's international wind power market. [0003] With the development of wind power, in the era of low wind speed and high towers, more and more wind power to...

AI Technical Summary

Problems solved by technology

As the height of the tower increases, the disadvantages of traditional steel towers are gradually reflected: economical decline; easy resonance; difficult transportation, etc.

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