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Strong-Rod ATS
Strong-Rod ATS
Strong-Rod ATS
Strong-Rod ATS
ATS Ratcheting Take‑Up Device Assembly
ATS Ratcheting Take‑Up Device Assembly
ATS RTUD Take-Up Device
ATS RTUD Take-Up Device
ATS ATUD Take-Up Device
ATS ATUD Take-Up Device
ATS TUD Take-Up Device
ATS TUD Take-Up Device
ATS TUD Installation
ATS TUD Installation
ATS Bearing Plate BPRTUD
ATS Bearing Plate BPRTUD
ATS Coupler Nut
ATS Coupler Nut
ATS-SBC Rod-to-Steel-Beam Connector
ATS-SBC Rod-to-Steel-Beam Connector
ATS Steel Beam Detail
ATS Steel Beam Detail
ATS Rod-to-Steel-Beam Installation
ATS Rod-to-Steel-Beam Installation
ATS Take‑Up Device Assembly
ATS Take‑Up Device Assembly
ATS Strong-Rod
ATS Strong-Rod
ATS Threaded Rod and Take-Up Device
ATS Threaded Rod and Take-Up Device
Strong-Rod ATS
Strong-Rod ATS
ATS Three Story System Installation
ATS Three Story System Installation
ATS Testing-TGLab
ATS Testing-TGLab

The Strong-Rod Anchor Tiedown Systems (ATS) offer safe and tested continuous rod tiedown solutions for multi-story, timber-frame construction in seismic and high-wind areas.

To complement its research and design expertise, Simpson Strong‑Tie has all the components needed to optimally design and build a continuous rod tiedown system for withstanding shearwall overturning forces. From our threaded rod to our plates and nuts, to our latest shrinkage compensators and design services, we offer Designers a complete solution.

Features & Benefits
  • Easy to install
  • An ATS restraint provides the high load capacities required for mid‑rise timber (3‑ to 6‑storey) construction
  • Directing the diaphragm loads from roofs, floors and walls to the foundation in a prescribed continuous load path
  • System components provide low deflection to help limit shearwall drift
  • Steel tension elements of the structural lateral force resisting system
  • Our knowledge of rod system performance through years of testing ensures that all system design considerations have been met
RTUD Ratcheting Take‑Up Device

The RTUD ratcheting take‑up device is a cost‑effective shrinkage compensation solution for continuous rod systems. The RTUD is code‑listed for use with rod systems to ensure highly reliable performance in a device that allows for unlimited shrinkage. The RTUD should be hand installed until the base of the device fully bears on top of the BPRTUD. Once the fastener holes are aligned and the RTUD is flush, install the Strong‑Drive® fasteners. Once the RTUD is installed, a series of internal threaded wedges enable the device to ratchet down the rod as the timber structure shrinks, but engage the rod in the reverse direction under tensile loading. Engagement is maintained on the rod by the take‑up device, enabling the rod system to perform as designed from the time of installation.

ATUD/TUD Take‑Up Device

The ATUD (Aluminium) and TUD (Steel) expanding take‑up devices are suitable for rod diameters from 1/2" (13 mm) up to 1 3/4" (45 mm) and shrinkage up to 75 mm. Expanding screw‑style take‑up devices provide the lowest device displacements. For installation, ensure that the activation pin is pointing up and facing toward the inside of the building space. The pin can be pulled anytime after the nut has been tightened onto the top bearing plate and must be pulled by the time the building is fully loaded. Shrinkwrap should remain on the device until the pin is ready to be pulled. Before activating an ATUD make sure the pin on the take‑up device on the floor below has been pulled.

Coupler Nuts

CNW and ATS-C coupler nuts are used to connect one threaded rod to another and connect to anchor bolts within the Strong-Rod Anchor Tiedown System for shearwall overturning restraint. Couplers are available in same rod size each end, as well as reducing couplers to allow for stepping of rod sizes up the rod run. Couplers are typically sufficient as black steel however a hot-dip galvanised option is available.

Steel Strong‑Rods

Strong‑Rod threaded rods are the tension transfer element within the Anchor Tiedown System for shearwall overturning restraint. Strong‑Rod threaded rods are threaded on both ends, with the top end having 305 mm or 1 219 mm of thread to allow for the distance that the rod sticks through the device. Information clearly etched on the shank allows easy identification in the field.

Shallow Podium Slab Anchor Kit

The Shallow Podium Slab anchor kit includes the patented Anchor Bolt Locator (ABL) and patent‑pending Shallow Anchor Rod (SAR). Uniquely suited for installation to concrete‑deck forms, the ABL enables accurate and secure placement of anchor bolts. The structural heavy hex nut is attached to pre‑formed steel and becomes the bottom nut of the anchor assembly. The shallow anchor is provided with a plate washer fixed in place that attaches on the ABL nut when assembled and increases the anchor breakout and pullout capacity. The shallow anchor is easily installed before or after placement of the slab reinforcing steel or tendons. Where higher anchor capacities are needed such as at edge conditions or to meet seismic ductility requirements, the anchor kit is combined with anchor reinforcement.

  1. SAR Shallow Anchor Rod
    SAR anchor rods are for use with the ABL anchor bolt locator. They combine to make an economical podium‑deck anchorage solution. Anchorage specification is per Designer.
  2. ABL Anchor Bolt Locator
    The ABL enables the accurate and secure placement of anchor bolts on concrete‑deck forms prior to concrete placement. The structural heavy hex nut is attached to a pre‑formed steel "chair," which eliminates the need for an additional nut on the bottom of the anchor bolt.
Rod‑to‑Steel‑Beam Connector

The rod‑to‑steel‑beam connector (ATS‑SBC) features a preattached high‑strength steel threaded rod and weldable plate for use on projects where the run is to be anchored to steel beams. The new connector reduces the number of components from seven to two, saving contractors installation time and cost. The design of the steel beam and the stiffeners are the responsibility of the Designer.

Timber‑Beam Plate

The WBP timber‑beam plate is for projects where the rod run attaches to timber beams. The centre hole of the bearing plate has internal threads to receive the threaded rod from above, and the plate spreads the load across the underside of the timber beam. Two SDS Heavy‑Duty Connector screws (provided with the kit) are to be installed through the WBP fastener holes and into the timber beam to support the weight of the bearing plate and rod above. This eliminates the need for an additional smaller bearing plate and nut on the top side of the beam. This unique connection also provides a fixed point at the very bottom of the rod run, allowing the take‑up devices above to address shrinkage of all the timber framing including any from the timber beam itself. The heavy hex nut provided with the WBP is required to fully engage the tensile capacity of the rod above. 

Brochures & Catalogues

Brochures and Catalogues

PDF icon Catalogue - Strong-Rod Systems
Technical Data & Docs

Warranty

Warranty

Masterspec
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Request a Demo/Sample

Experience the innovation design of Simpson Strong-Tie's products and how we can help you build safer, stronger structures. Please fill out your details and submit the form below. We’ll be in touch to schedule a time to talk and give you a personal demo of Simpson Strong-Tie products.

Request a Demo/Sample

Experience the innovation design of Simpson Strong-Tie's products and how we can help you build safer, stronger structures. Please fill out your details and submit the form below. We’ll be in touch to schedule a time to talk and give you a personal demo of Simpson Strong-Tie products.

Structural Connections

 

Unmatched Quality from the Truss to the Foundation

With nearly 60 years of field and R&D experience, Simpson Strong-Tie® timber connectors are manufactured to the industry's highest standards. From framing angles to straps to heavy-duty joist hangers, we offer the most diverse product line so that you have the right product for the job.

Simpson Strong-Tie® connectors offer unmatched quality with laboratory and field testing, and are backed by our uncompromising commitment to customer service. As the company that built the connector industry, you can count on Simpson Strong-Tie® to work closely with builders, engineers and building officials to deliver innovative, building code-compliant solutions to help build safer, stronger structures economically. Download the Timber Connectors NZS 3604 Catalogue.

Timber Connectors

From testing to service to availability, everything we do is engineered to ensure your project's success. With every product, you know you are getting the quality, value, service and on-time delivery that we have built our reputation on for the past 60 years.

From straps and ties to joist hangers and much more, Simpson Strong-Tie® structural connectors increase the strength and safety of timber-frame structures. Each connector is unique to Simpson Strong-Tie and is designed for specific applications without the need to adapt metal plating to suit a connection. Download the Timber Construction Connectors Catalogue.

Steel Frame Connectors

From fully tested and engineered connectors and clips Simpson Strong-Tie® provides comprehensive structural solutions for cold-formed steel construction. From steel-to-steel connections to full-scale lateral solutions and curtain wall connectors, we remain committed to developing new technology that helps to advance the cold-formed steel industry.

Find out how Simpson Strong-Tie timber connectors can help you build the right way every day. Download the Cold-Fromed Steel Construction Connectors Catalogue.