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Simpson Strong-Tie® hurricane ties provide a positive connection between truss/rafter and the wall of the structure to resist wind and seismic forces.
The RTUD ratcheting take-up device is a cost-effective shrinkage compensation solution for continuous rod systems. The RTUD is all-thread rod diameter specific and allows for unlimited shrinkage. Once the RTUD is installed, a series of internal threaded wedges enable the device to ratchet down the rod as the wood structure shrinks, but engage the rod in the reverse direction when under tensile loading. Continuous engagement is maintained on the rod at all times by the take-up device, enabling the rod system to perform as designed from the time of installation.
The ATUD and TUD expanding take-up devices are suitable for rod diameters from 1/2" up to 1 3/4". Expanding screw-style take-up devices provide the lowest device displacements.
The Stud Plate Tie series offers various solutions for connecting the stud to the top and bottom plates. All models can be used to make a connection to either the top or bottom plate, and several are suitable for double top plates and studs.
Beyond the tension and compression aspects of a continuous rod tiedown system, wood shrinkage must also be addressed. In these types of structures, shrinkage and settlement can cause a gap to develop between the steel nut and bearing plate on the wood sole or top plate. This can cause the system not to perform as designed and can add to system deflection. As a result, take-up devices must be used at each level to mitigate any gap creation and therefore ensure optimum system performance.
An ATS take-up device assembly comprises of the following:
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 a pre-formed steel "chair" 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.
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. CNWs and ATS-C coupler nuts exceed the tensile capacity of the corresponding standard strength threaded rod. ATS-HSC coupler nuts exceed the tension capacity of the corresponding high-strength threaded rod. All couplers have a testing protocol to ensure that the proper loads are achieved.
The Titen HD® rod coupler screw anchor is designed to be used in conjunction with a single- or multi-story continuous rod tie-down system. This anchor provides a fast and simple way to attach threaded rod to a concrete stem wall or thickened slab footing. Unlike adhesive anchors, the installation requires no special tool, cure time or secondary setting process; just drill a hole and drive the anchor.
Strong-Rod™ Anchor Tiedown System (ATS) for shearwall overturning restraint from Simpson Strong-Tie offers several other advantages for Specifiers and installers alike:
Strong-Rod URS has obtained an ICC-ES ESR-1161 code report and is designed and detailed to: