BUILDING FOUNDATION STRUCTURE

• Main Authors: HAMAGUCHI YOSHIO, UEDA RYO, FUNATSU MASASHI, SASAKI NORIKO
• Format: Patent
• Language: English; Japanese
• Published: 11.10.2023
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

To provide a building foundation structure capable of making the number of piles fewer.SOLUTION: A building foundation structure 1 of the present invention is provided with a flat plate 2 of a first floor in which slave reinforcements are buried, and which is supported with a plurality of piles 3 and is in direct contact with the ground. A first shearing reinforcement area 8 is formed on a flat plate 2 from an outer peripheral surface of a footing 4 in a circumferential direction of the footing 4 at a predetermined width dimension, and a second shearing reinforcement area 9 is formed in a strip shape from a boundary of the first shearing reinforcement area 8 to a predetermined length dimension by arranging higher rigid slab reinforcements 23 than circumferential slab reinforcements 21 from a pile 3 toward an adjacent pile 3, and a plurality of shearing reinforcements 25 arranged in the first shearing reinforcement area 8 and the second shearing reinforcement area 9 is formed in an almost U-shape having a hook part 25c engaging one end reinforcement of one side in a vertical direction of the higher rigid slab reinforcements and a flat part 25b hooked on the other end reinforcement of the other side in the vertical direction of the higher rigid slab reinforcements.SELECTED DRAWING: Figure 4 【課題】杭の本数を少なくすることができる建物基礎構造を提供する。【解決手段】本発明の建物基礎構造１は、スラブ筋が埋設され、複数の杭３で支持され、地面に直接接する１階のフラットプレート２を備える。フラットプレート２に、フーチング４の周方向に沿ってフーチング４の外周面から所定幅寸法で第１せん断補強領域８を形成するとともに、杭３より隣接する他の杭３に向けて、周辺のスラブ筋２１よりも高剛性のスラブ筋２３を配筋し、かつ第１せん断補強領域８の境界から所定長さ寸法まで帯状の第２せん断補強領域９を形成し、第１せん断補強領域８および第２せん断補強領域９に配筋される複数のせん断補強筋２５が、高剛性のスラブ筋の上下方向の一方側の一方端筋に係合するフック部２５ｃと、高剛性のスラブ筋の上下方向の他方側の他方端筋に掛けられる平坦部２５ｂと、を有するほぼコ字状に形成されている。【選択図】図４