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公开(公告)号：US11566394B2
公开(公告)日：2023-01-31
申请号：US17309777
申请日：2020-09-04
发明人： Kinji Takeuchi
摘要： A building foundation structure includes a ground improved body obtained by improving a surface layer ground, and foundation concrete placed on the ground improved body on site. The foundation concrete located below a building pillar has an upper part and a lower part having different shapes. The lower part has a reverse trapezoidal sectional shape in a cross section taken along a vertical plane including a horizontal direction perpendicular to a horizontal line connecting building pillars adjacent to each other. The upper part has a brim portion protruding in the first horizontal direction from a side edge at an upper end in the sectional shape of the lower part.
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公开(公告)号：US10954647B2
公开(公告)日：2021-03-23
申请号：US16627678
申请日：2018-04-17
发明人： Kinji Takeuchi
摘要： A building foundation structure includes a ground improved body obtained by improving a surface layer ground, and foundation concrete placed on the ground improved body. A bottom surface of a foundation concrete located below a building pillar has a four-or-more-sided polygonal shape smaller than the plan shape of the foundation concrete, and a part of the lower surface of the foundation concrete other than the bottom surface is a slope surface connecting the bottom surface and the plan shape. Since the stress from the foundation is transferred to the lower ground in its broader range, the stress transferred to the lower ground can be reduced. In addition, since the placing amount of the foundation concrete is reduced, the construction cost can be reduced.
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