We use cookies on this site to enhance your user experience. A design guide explaining how to specify Strong-Rod anchor tiedown system for shearwall overturning restraint and uplift restraint systems for roofs. A traditional shearwall relies either on holdowns or straps attached to posts to transfer the net shearwall overturning forces to the foundation. The holdown system then transfers the load in tension to an anchor that is embedded into a concrete foundation Continuous Rod Tiedown System Load Path A continuous rod tiedown system utilizes a combination of threaded rods … The Earthbound System is a patented continuous threaded rod system from a foundation anchor bolt set in the foundation to the uppermost floor of a building on both ends of a shear wall. Install a TIE MAX 5/8” to 1/2” reducing coupler to the end of the TIE MAX threaded rod to be connected to the TIE … The most common run start consists of the continuous rod system beginning at an elevated concrete slab referred to as a podium deck. Specifies and contractors trust Simpson Strong-Tie … The great advantage is to get the uplift calculations covered. Ratcheting take-up devices (RTUD) fit 1/2", 5/8" and 3/4" diameter rods. Testimonials. The bridge block detail accommodates high loads with installation from the inside of the structure. It alleviates us and saves time since Tie … x 3 in. Step 1. The Industry prefers tie-down systems from CLP Systems. A continuous load path is essential to a building’s structural performance. The TIE MAX Advantage. Learn More. Privacy Policy. The RTUD is a critical component of Simpson Strong-Tie Strong-Rod tiedown systems, keeping the rod system tight as a wood structure shrinks and settles while preventing gaps between the … Nobody likes the stresses of designing and installing tie-down systems, so we created a new way for you to experience easier design, larger savings, and quicker installation, giving you peace of mind about the tie-down … Replacing conventional shear wall holdowns, threaded rod assemblies are placed at each end of the shear wall to anchor the structure to the foundation and resists overturning. RE: Full Height Threaded Rods used for Shear Wall Hold-down mmillerpe (Structural) 6 Jul 10 08:29 I am not sure whether or not Simpson Strong Tie goes international or not, but they have a line of products called the ATS system which included shinkage compensators (Simpson … 7) Install the beam, drill the appropriate diameter hole in the beam, and run the rod up through the beam. As part of the lateral-force-resisting system, continuous rod systems are used as the holdown for the shearwall overturning restraints. Displacement limits for the system are L/240 for the top plate bending and 0.25 inches total deflection at the top plate between tie-down runs (including top plate bending, rod elongation, wood bearing deformation and take-up device displacement). TIE-DOWN SYSTEM. Bearing plate transfers the load through a nut into the rod system. Specifying a Strong-Rod Anchor Tiedown System (ATS) for shearwall overturning restraint from Simpson Strong-Tie offers several advantages for Specifiers and installers alike: Beyond the tension and compression aspects of a continuous rod tiedown system, wood shrinkage must also be addressed. Copyright © 2018 Code-listed components and systems that come with unmatched testing and design expertise are your formula for success. Aluminum take-up devices (ATUD) allow for multiple rod diameters. This can cause the system not to perform as designed and can add to system deflection. x 4 in. Simpson Strong-Tie coupler nuts are a tested and load-rated method to join threaded rod and anchor bolts. Our Anchor Tiedown System for Shearwall Overturning Restraint and our Uplift Restraint System for Roofs address many of the design challenges specifically associated with multi-story buildings that must withstand seismic activity or wind events. In this case, a steel anchor rod is cast-in-place into the concrete for transferring seismic and high-wind uplift loads directly into the concr… Directing the diaphragm loads from roofs, floors and walls to the foundation in a prescribed continuous path is a widely accepted method to prevent shearwall overturning. Zinc-Plated Heavy-Duty Screw Anchor (20-Pack) The Titen HD is a patented, high-strength, The Titen HD is a patented, high-strength, easy-to-install screw anchor … "Whose Tie Down System do you trust?" Zinc-Plated Split-Drive Anchor Simpson Strong-Tie mechanical Anchor are Simpson Strong-Tie mechanical Anchor are designed to install easily and securely into a variety of base materials, including concrete, grouted or hollow CMU and brick. The end posts deliver the sheathing load to the top plates and bearing plate. A continuous rod tiedown system utilizes coupled-together threaded rods … 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 (see photo below), as the shrinkage increases cumulatively up the building and is the greatest at the uppermost floor. … The Simpson S/LTT light tension ties are ideal for retrofit or new construction projects. The bridge block connection is an alternative to terminating the rod-run on the uppermost floor top plate. The following steps describe the traditional load path: A continuous rod tiedown system utilizes a combination of threaded rods with bearing plates and take-up devices at each level to transfer the forces to the foundation. The continuous rod system extends from the foundation to the top of the structure and is restrained (tied off) at each level to provide the load capacity and overturning resistance that’s … The holdown system then transfers the load in tension to a threaded rod that is embedded into a concrete foundation. Let Simpson Strong-Tie be your partner in designing the safest building possible with materials suited specifically for the application, making installation easier and costs lower. Threaded rod couplers join the rods at each level. Shallow podium anchors provide test-proven solutions for anchoring high loads to relatively shallow podium slabs at interior and edge conditions in conformity with ACI 318, Anchor Provisions. The advantages of using a continuous threaded rod system … Safer Homes & Faster Installations. The outermost framing boundary elements transfer the tensile forces, resulting from the net overturning, to the holdown that is attached to the post at the boundary. Our Anchor Tiedown System for Shearwall Overturning Restraint and our Uplift Restraint System for Roofs address many of the design challenges specifically associated with multi-storey buildings that must withstand seismic activity or wind events. View this dynamic infographic to learn more about Strong-Rod Systems Runs and Components. Simpson Strong-Tie Strong-Rod Systems have become a popular continuous rod tiedown solution for light-frame, multi-story wood construction. Lateral forces are transferred from the floor/roof to the plywood sheathing. DSD 1/4 in. HDU holdowns are pre-deflected during the manufacturing process, virtually eliminating deflection under load due to material stretch. Simpson Strong-Tie, the leader in engineered structural connectors and building solutions, has expanded its product line of RTUD ratcheting take-up devices with products redesigned specifically for 7/8″- and 1″-diameter threaded rod.The RTUD product line is engineered to provide a superior wood-shrinkage and construction-gap compensation solution for continuous rod … (20) 3" SDS Simpson Strong-Tie… "Witness" holes in the nut provide a means to verify when rods are properly … Need more information about our Simpson Strong-Tie … No structural connector and lateral systems manufacturer knows light-frame wood construction better than Simpson Strong-Tie, and we have what you need to design your building to resist seismic and wind loads. They provide high-strength, post-pour, concrete-to-steel connections. 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 … Simpson Strong-Tie Company, Inc. Soft-Story Retrofits for Building Resiliency, Repair, Protection & Strengthening Systems, Unreinforced Masonry (URM) Building Retrofit, Cross-Laminated Timber (CLT) & Mass Timber Connector Products, Anchoring Solutions for Value-Added Manufacturing, Component Manufacturer Software Solutions, Outdoor Living: Where Great Backyards Begin, New Product Testing in a Virtual Environment, Simpson Strong-Tie Materials Demonstration Laboratory at Cal Poly, Simpson Strong-Tie Research and Testing Laboratory at WSU, Anchor Tiedown System for Shearwall Overturning Restraint, General Specifications for ATS – Handling Deferred Submittals, Roof Framing or Truss-to-Top-Plate Restraint, Contact Webmaster with questions or comments, An ATS restraint provides the high load capacities required for mid-rise wood construction, System components provide low deflection to help limit shearwall drift, Steel tension elements of the structural lateral force resisting system can be designed for the Specifier by Simpson Strong-Tie Engineering Services, Wood compression components of the shearwall system can be designed for the Specifier by Simpson Strong-Tie Engineering Services, Simpson Strong-Tie Engineering Services can perform checks to ensure that your plans have the optimally designed system, Our knowledge of rod system performance through years of testing ensures that all system design considerations have been met. Rod system transfers the load from the plate through tension in the rods to the foundation. Step 3. TIE MAX is a Structural Tie Down System. We use cookies on this site to enhance your user experience. Lower Material Costs. ... Threaded Rods. By clicking "I AGREE" below, you are giving your consent for us to set cookies. ICC-ES ESR-3707 (PDF) (cracked and uncracked concrete) Strong-Bolt® Wedge Anchor. Pricing and standard package quantities are subject to change without notice. Strong-Rod fully threaded rod (all-thread rod) is the tension transfer element that can be used within both the Anchor Tiedown System for shearwall overturning restraint (ATS) and the wind uplift restraint (URS) system. Titen HD 1/2 in. Learn More. Simpson Strong-Tie Strong-Rod Systems have become a popular continuous rod tiedown solution for light-frame, multi-story wood construction. The Strong-Tie S/LTT20 tension tie … They use Strong-Drive® SDS Heavy-Duty Connector screws … Titen HD 1/4 in. Get general notes and details and for the Strong-Rod Anchor Tiedown System. By clicking "I AGREE" below, you are giving your consent for us to set cookies. Choose Your Best Tie-Down Systems. The Designer should be consulted for approval to drill through the beam. All components must be of TIE MAX manufacture. The Simpson Strong-Tie HDQ8-SDS3 holdown combines low deflection and high loads with ease of installation. The following steps describe the continuous rod tiedown system load path: Copyright © 2018 There are three main run start details that we see for continuous rod systems used in establishing the lateral-force-resisting system connection at the bottom: concrete, wood beams and steel beams. Zinc-Plated Heavy-Duty Screw Anchor The Titen HD is a patented, high-strength, The Titen HD is a patented, high-strength, easy-to-install screw anchor for use in … The installation of continuous rod systems has grown in popularity with the increase in mid-rise wood (3- to 6-story) construction. Pass More Inspections. The unique seat design of the HDQ8 greatly minimizes deflection under load. Simpson Strong-Tie Company, Inc. Soft-Story Retrofits for Building Resiliency, Repair, Protection & Strengthening Systems, Unreinforced Masonry (URM) Building Retrofit, Cross-Laminated Timber (CLT) & Mass Timber Connector Products, Anchoring Solutions for Value-Added Manufacturing, Component Manufacturer Software Solutions, Outdoor Living: Where Great Backyards Begin, New Product Testing in a Virtual Environment, Simpson Strong-Tie Materials Demonstration Laboratory at Cal Poly, Simpson Strong-Tie Research and Testing Laboratory at WSU, Anchor Tiedown System for Shearwall Overturning Restraint, General Specifications for ATS – Handling Deferred Submittals, Roof Framing or Truss-to-Top-Plate Restraint, Contact Webmaster with questions or comments. The holdown system then transfers the load in tension to an anchor that is embedded into a concrete foundation. These challenges are complicated, and having a reliable, highly knowledgeable design partner can be critical to keeping projects on time and within budget. ICC-ES ESR-1771 (PDF) (cracked and … Nails are typically used to transfer loads from the sheathing to the wall framing. 6) Drop the appropriate length of A307 threaded rod down the hollow column. Fully threaded rod … New options for compression post configurations that standardize anchor layout and reduce non-structural lumber in the upper stories. Questions? Privacy Policy. Step 2. Continuous rod tiedown systems are used to resist two types of tension forces – shearwall-overturning forces and uplift forces on roofs. Made in the USA; Cut to Length per Project; Sizes … Threaded Rod Hangers for wood and steel are a convenient and easy-to-use one-piece fastening system used for suspending 1/4" or 3/8” threaded rod. Simpson Strong-Tie has been involved with continuous rod systems since the early 2000s when we launched the Strong-Rod … 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 … Blue Banger Hanger® Cast-In-Place, Internally-Threaded Inserts. 8) Install the CNW coupler nut onto the anchor and install the threaded rod The Strong-Rod URS evaluates the Continuous Rod Tie-down System (the whole load path). To find out how we can help you, fill out a Request for Information or call (800) 999-5099. Optimized bearing plates accommodate the new ATUD and RTUD sizes. As a result, take-up devices must be used with most wood structures greater than two stories tall as is noted in the IBC 2015 Section 2304.3.3 at each level to mitigate any gap creation and therefore ensure optimum system performance. x 1-7/8 in. 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