Thread bar Anchor

Author: Steve

May. 13, 2024

Thread bar Anchor

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DYWIDAG Threadbar Anchor System

Single-nut Termination for Easy Stressing and Lock-Off

  • Retaining Wall Tieback
  • Uplift Restraint
  • Excavation Support
  • + 2

Bar anchor systems are widely used for retaining tieback and uplift resistance. The system is based on DYWIDAG's Threadbars, ensuring ease of coupling and stressing. With capacities up to 4500 kN, threadbar anchors can be utilized in various applications. Typical section lengths range from 6 to 12 meters. For projects requiring multiple short sections, the DYWIDAG Strand Anchor System may be more appropriate.

Advantages and Features

  • DYWIDAG Threadbar system enables simple coupling and termination for quick installation.
  • Free stressing lengths with coupler cover tubes prevent unwanted load transfer by ensuring full debonding of the stressed section.
  • Factory pre-grouted encapsulation (double corrosion protection) guarantees full lifespan for permanent works even in aggressive environments.
  • Anchor head components can be customized for specific needs, such as re-stressable or de-stressable options.
  • Permanent works are protected by specialist anchor protection caps and sealing arrangements, ensuring longevity.
  • Load monitoring and instrumentation options are available with DYWIDAG Threadbar Anchor Systems for data-driven insights.

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Main Standards for Steel Nuances

Europe/Asia: GEWI 500/550 Mpa, GEWI 555/700 Mpa, GEWI-Plus 670/800 Mpa, DYWIDAG Prestressing Steel Threadbar 950/1050 Mpa

UK: GEWI 500/600 Mpa, GEWI-Plus 670/800 Mpa, DYWIDAG Prestressing Steel Threadbar 950/1050 Mpa

North America: Grade 150 DYWIDAG Prestressing Steel

Accessories

  • Bearing plates with angle compensation, various finishes, architectural features.
  • Borehole spacers: lantern or skid
  • Tremie tubes for borehole grouting (bottom up)
  • Post-grouting tubes with TAM (tube à manchette) valves for bond stress enhancement
  • Rigid or hinged lifting shackles
  • Coupler forks for suspending sections within the borehole
  • Galvanized or epoxy-coated options

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Applications

Transport
Industrial Buildings
Commercial & Residential Buildings
Energy

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