CONSTRUCTION METHOD OF ANCHOR FOR CONCRETE

• Main Authors: JOGAN MASAHIKO, KUBOTA YOICHI
• Format: Patent
• Language: English; Japanese
• Published: 17.06.2021
• Subjects: BLASTING; BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; CEILINGS; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; FLOORS; FORMS; GENERAL BUILDING CONSTRUCTIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HANDLING BUILDING MATERIALS ON THE SITE; HEATING; INSULATION OR OTHER PROTECTION OF BUILDINGS; LIGHTING; MECHANICAL ENGINEERING; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; ROOFS; SCAFFOLDING; SHUTTERING; THERMAL INSULATION IN GENERAL; WALLS, e.g. PARTITIONS; WEAPONS

To provide a construction method of an anchor for concrete which is excellent in construction efficiency, minimizes a load applied to a concrete skeleton, and surely maintains strength and durability required for the concrete skeleton.SOLUTION: A construction method of an anchor for concrete comprises: a first step of extracting an existing original anchor 50 from an existing hole 101 of a concrete skeleton 100; a second step of drilling a new hole 102 concentrically with the existing hole 101 with a drilling diameter larger than a diameter of the existing hole 101, preferably with a drilling depth deeper than a depth of the existing hole 101; and a third step of placing a new renewal anchor 10 in the new hole 102.SELECTED DRAWING: Figure 3 【課題】施工効率に優れると共に、コンクリート躯体にかかる負荷を最小限に留め、コンクリート躯体に必要とされる強度や耐久性を確実に維持することができるコンクリート用アンカーの施工方法を提供する。【解決手段】コンクリート躯体１００の既設穴１０１から既存の元アンカー５０を抜き取る第１工程と、既設穴１０１と同心状に、既設穴１０１より径が大きい削孔径で、好適には既設穴１０１より深さが深い削孔深さで、新設穴１０２を削孔する第２工程と、新設穴１０２に新たな更新アンカー１０を打設する第３工程を備えるコンクリート用アンカーの施工方法。【選択図】図３