CONSTRUCTION METHOD OF SPREAD FOUNDATION STRUCTURE, AND SPREAD FOUNDATION STRUCTURE

To improve workability when fixing a base plate of a steel column to a spread foundation via an anchor bolt.SOLUTION: A construction method of a spread foundation structure comprises: a steel column erection process of erecting a steel column 40 which has a base plate 50 at its lower end and to whic...

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Main Authors TOKUMARU MASAHIRO, YOSHIDA RYOICHI, HARA YASUMUNE, ISHIDE ICHIRO, MOJI YOJIRO
Format Patent
LanguageEnglish
Japanese
Published 29.03.2024
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:To improve workability when fixing a base plate of a steel column to a spread foundation via an anchor bolt.SOLUTION: A construction method of a spread foundation structure comprises: a steel column erection process of erecting a steel column 40 which has a base plate 50 at its lower end and to which a steel foundation beam 60 is joined on an upper surface 20U of leveling concrete 20 via an erection column 30; and a spread foundation construction process of installing concrete around the erection column 30 with anchor bolts 52 attached to the base plate 50 to form a footing 70 in which the erection column 30 and the anchor bolts 52 are embedded.SELECTED DRAWING: Figure 1 【課題】鉄骨柱のベースプレートを、アンカーボルトを介して直接基礎に固定する際の施工性を向上することを目的とする。【解決手段】直接基礎構造の施工方法は、下端部にベースプレート５０を有するとともに鉄骨基礎梁６０が接合される鉄骨柱４０を、建て方用柱３０を介して捨てコンクリート２０の上面２０Ｕ上に建て方する鉄骨柱建て方工程と、ベースプレート５０にアンカーボルト５２を取り付けた状態で、建て方用柱３０の周囲にコンクリートを打設し、該建て方用柱３０及びアンカーボルト５２が埋設されたフーチング７０を形成する直接基礎施工工程と、を備える。【選択図】図１
Bibliography:Application Number: JP20220148536