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Steel filler to fill oversized holes in anchor bolts (filler) Parent-child filler L type-OF-L16
Steel filler to fill oversized holes in anchor bolts (filler) Parent-child filler L type-Structural Engineering Research Institute Co., Ltd.

Steel filler to fill oversized holes in anchor bolts (filler) Parent-child filler L type
Structural Engineering Research Institute Co., Ltd.

🏗️ Architecture & Construction Use

About This Product

■What is parent-child filler?

1. The installation tolerance of anchor bolts is ±8.5mm (M12) to ±22mm (M80), which is much higher than ±2.5mm for public notice column bases. This makes it easy to erect and align steel columns. In addition, it can be temporarily fastened at two diagonal locations, greatly reducing construction time. 2. Frees you from having to ``reset'' anchor bolts or ``re-drill'' base plate holes. 3.It can be used in the same way as the construction of conventional steel column bases. 4. No qualifications are required to install parent-child fillers.

■L type

1. The bending force and axial force generated on the column base will be carried out in the same way as the normal exposed column base design for both the primary and secondary designs. 2. The shear force generated on the column base is a first-order design, and the frictional resistance force at the bottom of the base plate is assumed to be the shear strength of the column base. If the shear force exceeds the frictional resistance force, the shear force cannot be transmitted to the anchor bolt. (Except when shear force handling is applied) In the secondary design, the friction resistance force at the bottom of the base plate is used as the shear strength of the column base, and even if the shear force exceeds the friction resistance force, the shear force can be transmitted to the anchor bolt. shall be. 3. The design of the base plate is based on the bending moment caused by the tension of the anchor bolt and the bending moment caused by the bearing pressure of the concrete. (The designer should consider safety in the same way as general exposed column base design) *Common to L, S, and Q types

■Installation method

The parts other than the parent and child fillers are the same as the conventional configuration. Installation is completed by simply drilling the specified anchor holes in the base plate and installing the parent-child filler on site.

■Advantages

By using a parent-child filler, anchor bolt installation errors (deviation from the standard position) can be absorbed within the allowable eccentric distance for anchor bolt installation. Therefore, it is possible to avoid procedures that have performance problems, such as "resetting the machine" or "redrilling the holes in the base plate", which were conventionally performed in some cases. It also helps the process run smoothly.

■Construction example

Can be used for column bases, seismic reinforcement, post-installation anchors, bridges, bridge collapse prevention devices, etc. ・Column base ・Tunnel support ・Seismic reinforcement ・Wooden pillar base

  • Product

    Steel filler to fill oversized holes in anchor bolts (filler) Parent-child filler L type
  • Usage Scenarios

    Architecture & Construction Use

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1 Models of Steel filler to fill oversized holes in anchor bolts (filler) Parent-child filler L type

Image Part Number Price (excluding tax) Allowable eccentric distance Parent filler Fb Parent filler Fa Parent filler F5 Parent filler F3 Child filler Ka Child filler K5 Child filler K1 Base plate maximum thickness Anchor bolt Anchor hole diameter
Steel filler to fill oversized holes in anchor bolts (filler) Parent-child filler L type-Part Number-OF-L16

OF-L16

$ 9.82〜

±9.0

16

4.5

50

38.5

4.5

40

17.5

20

M16

Φ40

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