Anchor Channel

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Anchor Channel

What is Anchor Channel?

Anchor Channel, A cast in steel channel with serrated lips that accepts T bolts for adjustable connections in concrete.

Description

An anchor channel, sometimes referred to as a cast-in-channel, is a cold-formed or hot-rolled steel C-shape embedded flush in concrete walls or slabs. Serrated lips grip toothed T‑bolts that slide to any position, allowing adjustable attachment of facades, piping, or mechanical supports without post-installed drilling. Load transfer is governed by channel size, bolt spacing, and edge distance, with design values listed in ICC ES reports and ACI 318 anchoring provisions. Hot dip galvanizing or stainless steel provides corrosion resistance in exterior or aggressive environments.

FAQs

  • Where are anchor channels used?

    Curtain wall supports, elevator guide rails, and pipe racks.

  • What bolt types fit the channel?

    T-head or hammer head bolts with serrations matching channel teeth.

  • How are channels fixed before the concrete pour?

    Nail plates, rebar ties, or foam fillers hold alignment.

  • Can channels be loaded in tension?

    Yes, design tables provide shear and tension capacities.

  • Are channels fire-rated?

    They inherit concrete fire resistance; stainless options withstand high temperatures.

  • Who specifies anchor channels?

    Structural engineers detailing façade or mechanical supports.

  • How is corrosion protection ensured?

    Hot dip galvanizing, epoxy, or stainless steel grades 304 and 316.

Fun Fact

Fun Fact: Anchor channels originated in 1920s German tunnel formwork, enabling rapid, adjustable attachment of mining services to concrete linings.

CSI Code

03 15 00

NAHB Code

330