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Steel filler to fill oversized holes in anchor bolts Parent-child filler K type-OF-K16
Steel filler to fill oversized holes in anchor bolts Parent-child filler K type-Structural Engineering Research Institute Co., Ltd.

Steel filler to fill oversized holes in anchor bolts Parent-child filler K 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 (intuitively) as when constructing conventional steel column bases. 4. No qualifications are required to install parent-child fillers.

■K type (for stairs only)

1. No bending or tensile force will be applied to the column base. (Do not create tensile force on the anchor bolt) 2. The shearing force due to earthquake loads and wind loads acting on the stairs shall be borne by the structure of the building where the stairs are installed on each floor. When considering the shear force at the lowest level (column pedestal position), the frictional resistance force at the bottom of the base plate is taken as the shear strength of the column pedestal. If the shear force exceeds the frictional resistance force, the shear force cannot be transmitted to the anchor bolt. 3.K type is for stairs and cannot be used for general column bases.

■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-installed 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 Parent-child filler K type
  • Usage Scenarios

    Architecture & Construction Use

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1 Models of Steel filler to fill oversized holes in anchor bolts Parent-child filler K 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 Parent-child filler K type-Part Number-OF-K16

OF-K16

$ 15.02〜

±20.0

11.8

6

75

60.5

4.5

50

17.5

16 (12) *Minimum plate thickness (12) is compatible with flat girders.

M16

Φ62

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