What is Embed plate in steel structure

An Embed Plate in steel structure is a rectangular piece of steel with welding studs attached that have a head bigger than the stud’s diameter. In this article you will learn the basic of embed plates which are necessary to detail in tekla structures.

When constructing steel buildings or structures, various elements such as plates, angles, bolts, anchor rods, and other attachments need to be embedded or attached to the steel framework for the overall stability and functionality of the structure. Embeds add reinforcement and strength to the structure by holding the steel in place and providing an attached surface for other reinforcements.

Fig 1: Embed plate structural detail

The fig. 1 shows embed plate connection detail, in which embed plate is provided in tilt-up wall for deck support angle connection.

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Purpose of Embed plates

Purpose of an embed plate is to transfer load from steel framing to concrete wall / foundation. Headed studs are welded on embed plates to provide shear and axial resistance.

Embed plates are essential for ensuring the stability and integrity of a building or structure by securely anchoring load-bearing elements to the foundation or other structural elements. They come in various shapes and sizes, depending on the specific application and engineering requirements of the project.

Nailer holes in embed plate

Nailer holes are provided on embed plate to secure it in position while concrete is cast. Fig. 2 shows (4) 5/16" diameter holes at the corners of embed plate.

Fig. 2: Embed plate with nailer holes

FAQS

1. What is Nailer holes size in embed plate?
   Usually, 5/16″ diameter holes are provided in embed plates.
2. What is the grade of studs welded to embed? The material grade of studs is ASTM A108
3. What is the thickness of embed plate?     Normally, 1/2″ or 3/4″ thick plate is used.

Conclusion

In steel detailing, the term "embed plate" refers to a steel plate that is embedded or attached to a structural steel component, typically a column or beam, to facilitate its connection to other structural elements or to the foundation.