COMPOSITE STRUCTURE POWER TRANSMISSION STEEL TOWER AND ASSEMBLING METHOD BY RAISING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a steel tower capable of making wind pressure load of the steel tower smaller to reduce foundation stress by using a power transmission single column steel tower section having small wind force coefficient on the upper part and a power transmission angle steel tower section having a low manufacturing cost of the steel tower on the lower part.

SOLUTION: A power transmission steel pipe single column steel tower section 2 having cross arms 3 with a plurality of stages is connected to the upper part of the power transmission angle steel tower section 1 having a foundation, these connections are so made that horizontal plates are respectively laid between upper or lower main column materials set at an interval between both up and down positions in the upper part of the power transmission angle steel tower section 1 and that the lower part of the steel pipe single column steel tower section 2 passes through a hole bored in the upper horizontal plate 5 to fix them by mounting the lower end thereof on the lower horizontal plate 4.

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