Simple reinforcement of the foundation of plastic greenhouses to prevent wind damage (1)

摘要

For a low-cost and a resource-saving design of a plastic greenhouse, a simple pile foundation to prevent wind damage was examined. The horizontal tension test was carried out for a small square steel pipe with a width of 45 mm, which is generally used for part of the structure material of a plastic greenhouse. The results showed that the analysis method of the beam on a semi-infinite, ideal elastic medium is applicable to the calculation for a horizontal subgrade reaction of the small pile width. Moreover, we examined the pulling resistance of the pile, which is reinforced by a small steel pipe arranged in parallel crosses. This result suggests that this pile structure is useful for the method of a simple and low-cost reinforcement of the greenhouse foundation.