JP3223646U

JP3223646U - Hooks for connection with post-installed steel pipe piles, etc.

Info

Publication number: JP3223646U
Application number: JP2019003081U
Authority: JP
Inventors: 俊則山口
Original assignee: ウッドリッチ有限会社
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2019-10-24
Anticipated expiration: 2029-07-29

Abstract

【課題】基礎のそれ以上の沈下を防止するために、沈下した基礎周囲の敷地に杭打ち作業スペースさえあれば、簡単な敷地の掘方で、鋼管杭と連結させるためのボルトなどを通すＵ字型金物をＬ型金物に溶接した基礎への引掛け用金物を提供する。【解決手段】傾いた建物に、後施工の沈下防止用杭打ち鋼管と基礎を一体化させる基礎沈下防止構造に於いて、先端を直角に曲げたボルトａを、板状Ｌ型金物の山折部にまたいで溶接し、且つＬ型金物の引張側には、基礎固定締結用の貫通穴が複数ヶ所設けてある。【選択図】図１To prevent further subsidence of a foundation, if there is a pile driving space on the site around the subsidized foundation, a bolt for connecting with a steel pipe pile can be passed through a simple method of excavating the site. Provided is a hardware for hooking a base on which a letter-shaped hardware is welded to an L-shaped hardware. In a foundation subsidence prevention structure in which a piled steel pipe and a foundation for post-settlement prevention are integrated in a tilted building, a bolt a having a bent tip at a right angle is formed into a mountain fold portion of a plate-shaped L-shaped hardware. In addition, a plurality of through holes for fastening the base are provided on the tension side of the L-shaped metal piece. [Selection] Figure 1

Description

本考案は、図２のような基礎を有する建物や工作物における、沈下防止用鋼管杭打ちを後から施工する場合、基礎との連結に必要な金物に関するものである。 The present invention relates to hardware necessary for connection with a foundation when a steel pipe pile driving for preventing settlement is to be performed later in a building or workpiece having a foundation as shown in FIG.

従来から、傾いた建物の沈下を防止するために後から鋼管杭を施工し、基礎との結合を、Ｈ型鋼を杭に溶接しさらに、コンクリート基礎とＨ型鋼を結合するためにコンクリートで一体にしていた。これは、Ｈ型鋼を溶接する為と、基礎の下にＨ型鋼を差し込めるほどの余裕ある地盤の掘り込み作業が必要であり、そのための敷地作業スペースが必要である。 Conventionally, steel pipe piles are constructed afterwards in order to prevent the sinking of a tilted building, and the foundation is joined to the foundation by welding the H-shaped steel to the pile, and then connecting the concrete foundation and the H-shaped steel together. It was. This requires welding work for the H-shaped steel and excavating the ground enough to insert the H-shaped steel under the foundation, and a work space for the site is required.

図２は基礎を後施工の鋼管杭と連結構成部材で保持した例であり、基礎の端部へ係合させる金物と、杭頭部へ係合させる金物と、それらを連結する棒状連結材（以下ボルト等と表現）を、連結構成材として組み合わせてあり、基礎端部用係合金物は先端を直角に曲げたボルトを、Ｌ型金物の山折り部にまたがって溶接するものである。 FIG. 2 is an example in which the foundation is held by a post-construction steel pipe pile and a connecting component, a hardware that is engaged with the end of the foundation, a hardware that is engaged with the pile head, and a rod-shaped connecting material that connects them ( (Hereinafter expressed as bolts or the like) is combined as a connecting component, and the engagement metal fitting for the base end is formed by welding a bolt whose tip is bent at a right angle across the mountain fold of the L-shaped metal fitting.

上述のように、本考案の連結構成部材は、現地にて、溶接や、ジャッキ作業や、コンクリート打ち込み作業や、そのための広いスペースが不要であり、作業安全性の向上と、設計強度が安定することで、建物の修繕費用としての費用が低減できる。又経時による建物傾斜程度の調整が、引張部材のボルトなどの調整により後からでも容易可能となる。さらに引掛け金物は、Ｌ型金物の山折り側に先先端を直角に曲げたボルトをＬ型金物の山折り側にまたがって溶接することで、Ｌ型金物の補強となり、さらにＬ型金物が受ける引張力による回転モーメントの低減の効果があり基礎コンクリートへの固着用ボルトなどの締結材への剪断荷重の負担軽減にもなっている。 As described above, the connecting component of the present invention does not require welding, jacking work, concrete placing work, and a large space for the work, improving work safety and stabilizing design strength. Thus, the cost for repairing the building can be reduced. Also, the adjustment of the building inclination over time can be easily made later by adjusting the bolts of the tension members. Furthermore, the hook metal is reinforced to the L-shaped hardware by welding a bolt with the tip bent at a right angle to the mountain-folded side of the L-shaped metal, so as to reinforce the L-shaped hardware. It has the effect of reducing the rotational moment due to the tensile force it receives, and it also reduces the burden of shear load on fastening materials such as bolts for fixing to foundation concrete.

は本考案での係合部を形成する引掛け金物の例の図であり、ａは、先端を曲げたボルト、ｂ１はボルト曲げ部の干渉回避穴ｂ２を有するＬ型金物、ｃは締結用穴を示す。さらに図は、ボルト引張側を、引張方向に若干曲げてある図としてある。FIG. 4 is a diagram of an example of a hook metal that forms an engaging portion in the present invention, where a is a bolt with a bent tip, b1 is an L-shaped metal fitting having an interference avoidance hole b2 of the bolt bent portion, and c is for fastening. Indicates a hole. Further, the figure is a diagram in which the bolt tension side is slightly bent in the tension direction. は、本考案の組み立てで必要な連結構成材の施工例の図であり、ｄは基礎引掛け金物、ｅは基礎締結材、ｆは鋼管杭、ｇは鋼管側引掛け金物の例、ｈは鋼管側の引掛け金物の固定例、ｉとｌとｍは引張用連結構成材の例、ｊは管理用点検箱の例、ｋは基礎断面の例である。Is a diagram of an example of construction of a connecting component necessary for the assembly of the present invention, d is a foundation hook metal, e is a foundation fastening material, f is a steel pipe pile, g is an example of a steel pipe side hook metal, h is An example of fixing a hook on the steel pipe side, i, l and m are examples of connecting components for tension, j is an example of a management check box, and k is an example of a basic cross section. は、基礎の根入れ深さが大きい場合にＬ型金物を引掛けた場合の図The figure shows a case where an L-shaped hardware is hooked when the base is deeply embedded.

Claims

In a foundation subsidence prevention structure that integrates a pile-down steel pipe and a foundation for post-subsidence settlement into a tilted building, a bolt with its tip bent at a right angle is welded across a mountain fold of a plate-shaped L-shaped hardware. In addition, a hook metal having a plurality of through holes for fastening the base fixed on the tension side of the L-shaped metal