1. Catalogs
  2. SIMPSON Strong-Tie
  3. High Wind-Resistant Construction
video corpo
cad

High Wind-Resistant Construction

High Wind-Resistant Construction
1 / 52 PagesView full catalog

High Wind-Resistant Construction

Product catalog summary
Introduction
Simpson Strong-Tie provides solutions for constructing safer structures in high-wind areas. The catalog C-HW12 offers design solutions and installation details for creating load paths resistant to uplift and lateral forces.
Specifications and Standards
The catalog includes technical data from the Wood Construction Connectors catalog (C-2011) and reflects changes in allowable loads and configurations. It is effective until June 30, 2014, and supersedes previous publications.
Corrosion Information
Pages 7-8 detail corrosion risks and protection options, including ZMAX®, hot-dip galvanized, and stainless steel coatings. Regular maintenance and inspections are recommended, especially for outdoor applications.
Product Features
New products and sizes are highlighted, including the LTA2 truss anchor, HDB holdowns, and SD structural-connector screws. These products are designed to resist high loads and provide ease of installation.
Installation Procedures
The catalog organizes solutions by framing condition, detailing connections for trusses, rafters, and various wall and foundation types. It emphasizes the importance of proper installation to maintain load-carrying capacities.
Software and Support
Simpson Strong-Tie offers value-added software and technical support. Customers are encouraged to contact the company for the latest product information and technical assistance.
Quality Assurance
Simpson Strong-Tie is ISO 9001-2008 registered, ensuring consistent product quality. The company is committed to product development, engineering, and testing to meet customer needs.
Conclusion
The catalog serves as a comprehensive guide for designers and builders in high-wind regions, providing essential information on product selection, installation, and maintenance.
Corrosion Information and Recommendations
Guidelines are provided for selecting connectors and fasteners with appropriate corrosion protection, especially for newer preservative-treated wood. Recommendations are based on current testing and experience, acknowledging that they may evolve with new data. For outdoor environments, regular inspection and maintenance are advised, and stainless-steel connectors are recommended for wood with high retention levels of preservatives.
Software Solutions
Simpson Strong-Tie offers software tools to aid in product selection and specification. The Connector Selector suggests appropriate connectors based on application details, while the Strong Frame Selector and Strong-Wall Shearwall Selector assist in identifying suitable frames and shearwalls, respectively, based on project parameters.
General Recommendations
Recommendations vary based on environmental exposure and wood treatment levels. For low exposure, standard painted and G90 galvanized connectors are suggested. Medium exposure requires ZMAX®/HDG galvanized connectors, while high exposure necessitates stainless-steel connectors.
Guidelines for Connector Selection
Evaluate the application, environment, and preservative-treated wood to select suitable connectors. Indoor dry environments are less corrosive than outdoor ones. For uncertain conditions, stainless steel is recommended.
Installation and Usage Notes
Proper installation is crucial for optimal performance. Follow all instructions and use the correct fasteners. Simpson Strong-Tie provides various resources, including training kits, installation guides, and software tools, to assist in proper product use.
Warnings
Improper installation may lead to reduced performance. It is the designer's responsibility to ensure a continuous load path as required by building codes.
Specifications and Load Calculations
Allowable loads are determined by the lowest of the average recorded test load at 1/8" deflection, the lowest ultimate recorded test load divided by 3, or the calculated value based on material capacity. Multiple connectors must be installed without overlapping fastener locations. For connectors loaded in multiple directions, a unity equation is used to ensure the combined load does not exceed allowable limits. Specific connectors can be evaluated with a reduced load factor of 0.75. Bolts must meet ASTM Standard A307, Grade A. Nails are specified as common nails unless noted otherwise. Refer to technical bulletins for anchorage to concrete and wind uplift continuous load path. Special considerations are required for hurricane ties installed inside walls in cold climates. Loads are in pounds and dimensions in inches unless noted otherwise. Built-up lumber must be fastened to act as a single unit. Use SPF allowable loads when connecting DF/SP members to SPF lumber. Concrete anchorage solutions are for uncracked concrete resisting wind and low seismic loads.
Warranty and Product Use
Simpson Strong-Tie products are warranted against defects in material or manufacturing when used as specified. The warranty does not cover non-compliant uses or environmental deterioration. Warranty remedies are limited to repair or replacement of defective parts. Modifications to products should only be made by qualified Designers. Non-catalog products must be designed by the customer and are not warranted by Simpson Strong-Tie.
High Wind-Resistant Construction
Modern building practices with proper structural connections can strengthen structures against tornadoes. Most U.S. tornadoes have wind speeds below EF3 intensity. The Enhanced Fujita Scale is used to estimate tornado intensity.
Fastener Types and Specifications
Specific fasteners are required for Simpson Strong-Tie connectors to achieve published loads. Fastener material and coating are critical for performance. SDS screws are designed for structural wood applications and offer corrosion resistance. Load values for screws are based on testing and can be adjusted for load duration factors.
Specifications and Applications
LSL wood-to-wood applications using SDS screws of 4 1/2", 5", 6", or 8" are restricted to interior-dry use only. For stainless steel, add "SS" to the model number. The Strong-Drive® SD screw is compatible with approved connectors for high wind-resistant construction.
SDWC Strong-Drive® Structural Wood Screw
Designed for roof-to-top plate connections, providing a secure fastening option for trusses and rafters. Features include a fully-threaded shank, cap-style head, and a wide installation-angle range. Can be installed from inside the structure, enhancing safety and flexibility. Allowable loads depend on installation per recommended instructions and are affected by factors like screw spacing and load direction.
Quik Drive® Fasteners
Auto-feed screw driving systems for subfloor applications, reducing installation time and floor squeaks. Codes include ICC-ES ESR-1472 and others. Allowable shear values are provided for wood structural panel diaphragms with specific framing requirements.
Titen Screws for Concrete or Masonry
Available in hex and Phillips head, suitable for dry, non-corrosive environments. Allowable loads are specified for different embedment depths and conditions. Installation guidelines emphasize avoiding overtightening and ensuring proper edge distances.
SET® Epoxy Anchoring Adhesive
High-strength, non-shrink adhesive for anchoring threaded rods or rebar. Suitable for damp and wet conditions, with multiple dispensing options.
Load Path Overviews
Uplift Load Path: Describes the transfer of forces from the roof to the foundation to prevent damage from wind uplift. Lateral Load Path: Addresses shear forces that can cause racking, sliding, or overturning, requiring additional bracing and connectors.
Overview
This document provides technical specifications and installation guidelines for various truss and rafter connectors used in high wind-resistant construction. It includes details on fastener requirements, load capacities, and installation procedures for different connector models.
Specifications
  • Connectors such as HETAL, HHETA, DETAL20, META, and others have specific nail and fastener requirements to achieve designated load capacities.
  • Load capacities vary based on the number of fasteners used and the type of installation (e.g., single-ply vs. two-ply trusses).
  • Products are available with additional corrosion protection and may be used with Simpson Strong-Tie® Strong-Drive® screws for enhanced performance.
Installation Procedures
  • Detailed instructions are provided for installing connectors on trusses and rafters, including the use of specific fasteners and the importance of correct spacing and orientation.
  • For concrete applications, specific screw types and sizes are recommended, such as Titen® screws and Titen HD® anchors.
  • Installation guidelines emphasize the importance of using the correct number of fasteners to achieve the published load capacities.
Load Capacities and Calculations
  • Tables provide allowable load values for different connectors based on the number and type of fasteners used.
  • Formulas are provided to calculate reduced load capacities when fewer fasteners are used.
  • Specific load values are given for different installation scenarios, such as parallel-to-wall and perpendicular-to-wall installations.
Recommendations and Best Practices
  • Ensure connectors are installed on grouted and reinforced block walls or reinforced concrete walls to transfer uplift loads effectively.
  • Use moisture barriers and stainless steel fasteners in corrosive environments to prevent performance issues.
  • Consult with Simpson Strong-Tie for additional product options and corrosion protection details.
Additional Notes
  • Some connectors can be field bent to specific angles to accommodate different installation requirements.
  • Designers must specify anchor types, lengths, and embedment depths for specific applications.
  • Products are approved for use with specific Simpson Strong-Tie® tools and screws for optimal performance.
Overview
This document provides technical specifications and installation guidelines for various Simpson Strong-Tie products used in high wind-resistant construction. It includes details on truss/rafter to plate connections, stud to band joist connections, and more, with a focus on uplift and lateral load capacities.
Specifications
  • Products are available with additional corrosion protection and may be available in stainless steel for enhanced resistance.
  • Approved for use with Strong-Drive SD structural-connector screws.
  • Refer to specific pages for coating considerations on connectors attached to preservative-treated wood.
Procedures
  • Installation of MTS and HTS connectors requires specific nailing patterns for lateral loads.
  • H10S connectors allow for a maximum stud offset of 1" from the rafter for reduced uplift capacity.
  • For truss-to-plate connections, ensure connectors are installed on the same side of the wall as plate-to-stud connectors.
Norms and Recommendations
  • Use side (eccentric) loads when uplift loads are applied to one face of the top plate.
  • Center (concentric) loads should be used when uplift loads are applied at the center of the top plate.
  • For stainless steel options, contact Simpson Strong-Tie for availability.
Key Data from Tables
  • Various models like H2.5ASS, H4, and META16 have specific fastener requirements and allowable load capacities detailed in tables.
  • Load values are provided for different configurations, including single and double-ply band joists.
  • Specific models have detailed load capacities for both Douglas Fir/Southern Pine (DF/SP) and Spruce-Pine-Fir (SPF) wood types.
Critical Information
  • Ensure minimum edge and end distances to anchors as specified in tables.
  • Refer to technical bulletins for additional load and installation information.
  • For floor to masonry/concrete connections, holdown load values are based on specific wood thicknesses.
Specifications
1. Use 2 1/2" long nails for wood structural panel sheathing.
2. For concrete applications, use 1/4"x1 3/4" Titen® screws.
3. All-Thread Rod (ATR) specifications must be determined by the designer.
4. Standard cut washer is required with the 3/8" All-Thread Rod.
5. THDRC is listed for use with specific concrete conditions and requires designer-specified adhesive anchors for CMU bond beams.
Procedures
1. Ensure proper installation of fasteners to achieve listed loads.
2. Use Simpson Strong-Tie® Titen® installation tool kit to prevent overtightening.
3. Follow specific guidelines for high wind-resistant construction, including continuous load path and rod tie-down systems.
Norms and Recommendations
1. Use products in dry and non-corrosive environments or provide moisture barriers.
2. Consider additional corrosion protection for products used in preservative-treated wood.
3. Follow ICC-ES guidelines for continuous rod tie-down systems to resist wind uplift.
Key Data from Tables
- Various models and their required fasteners, allowable loads, and specific conditions for use are detailed.
- Load capacities are provided for different materials like Douglas Fir and SPF.
- Specific installation instructions and conditions for each model are outlined.
Critical Information
- Minimum concrete strength is 2500 psi.
- Ensure proper embedment and spacing for anchors and fasteners.
- Use stainless steel options for enhanced corrosion resistance where applicable.
Specifications
The document provides detailed specifications for various Simpson Strong-Tie products, including fasteners, connectors, and shearwalls. It outlines the types of nails and screws required for different installations, such as 8dx1 1/2" nails and Titen® screws, and specifies the allowable loads for different wood types like Douglas Fir (DF) and Spruce-Pine-Fir (SPF).
Procedures
Installation procedures are described for products like LTP4 and LTP5, which can be installed over wood structural panel sheathing with specific nail sizes to achieve certain load percentages. The document also details the installation of RBC with up to a 3/4" gap and the use of Titen® screws for concrete applications.
Standards and Recommendations
The document emphasizes the importance of using products in dry and non-corrosive environments unless additional corrosion protection is provided. It recommends using the Simpson Strong-Tie® Titen® installation tool kit to prevent overtightening and potential performance issues.
Load Tables
Several tables provide allowable load values for different connectors and fasteners, specifying conditions like wind or earthquake loading. The tables also include information on the required fasteners and the corresponding loads for different wood types.
High Wind-Resistant Construction
The document discusses the use of holdowns and shearwalls in high wind-resistant construction, providing load values for different conditions such as corner, midwall, and end-of-wall. It also introduces the Strong-Wall® and Strong Frame® systems for enhanced design flexibility and performance.
Additional Information
References are made to additional resources like the Wood Construction Connectors catalog and technical bulletins for further guidance on product selection and installation. The document also mentions the availability of software tools for selecting appropriate shearwall and frame solutions.
End-of-Wall Connections (Concrete/Masonry) This section details the specifications for various connectors used in concrete and masonry applications. It includes models like HGAM10KTA and RBC, specifying the type and size of fasteners required, such as SDS and Titen screws, along with their allowable load values in different conditions.
End-of-Wall Connections (Wood) Similar to the concrete/masonry section, this part outlines the specifications for wood connections, listing models like HGA10KT and LSTA series. It provides details on fasteners and load values, emphasizing the availability of stainless steel options for corrosion resistance.
Valley Truss to Roof Framing This section discusses high wind-resistant construction techniques, specifying the use of Strong-Drive SD screws for secure connections. It includes guidelines for drag strut connections and the necessary penetration and edge distances for screws.
Hanger Uplift Considerations The document explains how to achieve additional uplift loads by inverting connectors and combining them with standard connectors. It provides load values based on National Design Specification calculations and static load tests.
Load Path Installation Considerations This section addresses various installation challenges, such as overlapping connectors and bulging floor-to-floor straps. It offers solutions like using specific connectors and filling nail holes strategically to prevent issues.
Technical Publications A list of available technical publications is provided, covering topics like anchoring and fastening systems, Strong-Wall shearwalls, and cold-formed steel connectors. These resources offer detailed product information and installation instructions.
Software Tools Simpson Strong-Tie offers several software programs to assist in product selection and specification, including the Connector Selector and Strong-Wall Selector. These tools help designers choose appropriate products based on load requirements and building codes.
See more

Catalog excerpts

High Wind-Resistant Construction-1

HIGH WINDRESISTANT CONSTRUCTION C-HW12

 Open the catalog to page 1
High Wind-Resistant Construction-2

C-HW12 © 2012 SIMPSON STRONG-TIE COMPANY INC.

 Open the catalog to page 2
High Wind-Resistant Construction-3

We help people build safer structures economically. At Simpson Strong-Tie, this statement doesn’t refer to structures built in a vacuum or on paper. We know that structures are built in earthquake regions, in tornado regions, and in hurricane regions. In order for Designers to address these real-world scenarios, they need products and systems designed to address the specific challenges each natural phenomenon presents. Our continued commitment to those who specify, install, and rely on our products is reflected in this High Wind-Resistant Construction catalog. For more information, please call...

 Open the catalog to page 3
High Wind-Resistant Construction-4

High Wind-Resistant Construction The High Wind-Resistant Construction catalog (C-HW12) is a guide to assist Designers faced with challenging connections in high-wind regions. C-HW12 compiles technical data from the Wood Construction Connectors catalog (C-2011) to offer design solutions as well as installation details that create a load path resistant to increased uplift and lateral forces common to high-wind regions. These solutions and details are organized by framing condition rather than by metal connector group, and products are listed in order of increasing capacity. Unique to this catalog...

 Open the catalog to page 4
High Wind-Resistant Construction-5

High Wind-Resistant Construction INTRODUCTION For more than 50 years, Simpson Strong-Tie has focused on creating structural products that help people build safer and stronger homes and buildings. A leader in structural systems research and technology, Simpson Strong‑Tie is one of the largest suppliers of structural building products in the world. The Simpson Strong-Tie commitment to product development, engineering, testing and training is evident in the consistent quality and delivery of its products and services. Simpson Strong-Tie® product lines include: • Structural connectors for wood and...

 Open the catalog to page 5
High Wind-Resistant Construction-6

High Wind-Resistant Construction Now there is a bolted holdown that offers the low-deflection performance of our pre-deflected holdowns: the HDB. Suitable for installation on or above the sill plate as well as back-to-back and compression applications, the HDB is ideal for shearwalls, braced wall panels and lateral applications. Lateral Truss Anchor The new LTA2 is an embedded truss anchor for grouted CMU and concrete walls that develops high loads with shallow embedment. Designed for 2x4 minimum truss chords, the LTA2 resists uplift and lateral loads parallel and perpendicular to the wall with...

 Open the catalog to page 6
High Wind-Resistant Construction-7

High Wind-Resistant Construction VALUE-ADDED SOFTWARE Simpson Strong-Tie offers software solutions to make product selection and specification easier. Visit www.strongtie.com to download your free versions. Connector Selector Finding the right connector just got easier. Input the details of your application and the Simpson Strong-Tie® Connector Selector software suggests appropriate connectors and lists them by their installed cost. The program offers solutions for solid-sawn lumber, I-joists, engineered wood and trusses, and can also take into consideration factors such as wood species and masonry...

 Open the catalog to page 7
High Wind-Resistant Construction-8

High Wind-Resistant Construction CORROSION INFORMATION General Simpson Strong-Tie Recommendations • Outdoor environments are generally more corrosive to steel. If you choose to use ZMAX® or HDG finish on an outdoor project (i.e. deck, patio cover), you should periodically inspect your connectors and fasteners or have a professional inspection performed. Regular maintenance including water proofing of the wood used in your outdoor project is also a good practice. • For wood with actual retention levels greater than 0.40 pcf for ACQ, 0.34 pcf for MCQ, 0.21 pcf for CA-B, 0.15 pcf for CA-C and MCA...

 Open the catalog to page 8
High Wind-Resistant Construction-9

High Wind-Resistant Construction IMPORTANT INFORMATION & GENERAL NOTES WARNING Simpson Strong-Tie Company Inc. structural connectors, anchors, and other products are designed and tested to provide specified design loads. To obtain optimal performance from Simpson Strong-Tie Company Inc. products and achieve maximum allowable design load, the products must be properly installed and used in accordance with the installation instructions and design limits provided by Simpson Strong-Tie Company Inc. To ensure proper installation and use, designers and installers must carefully read the following General...

 Open the catalog to page 9
High Wind-Resistant Construction-10

High Wind-Resistant Construction LIMITED WARRANTY Simpson Strong-Tie Company Inc. warrants catalog products to be free from defects in material or manufacturing. Simpson Strong-Tie Company Inc. products are further warranted for adequacy of design when used in accordance with design limits in this catalog and when properly specified, installed, and maintained. This warranty does not apply to uses not in compliance with specific applications and installations set forth in this catalog, or to non-catalog or modified products, or to deterioration due to environmental conditions. Simpson Strong-Tie®...

 Open the catalog to page 10
High Wind-Resistant Construction-11

High Wind-Resistant Construction FASTENER TYPES Fastener Types and Sizes Specified for Simpson Strong-Tie® Connectors Many Simpson Strong-Tie® connectors have been designed and tested for use with specific types and sizes of fasteners. The specified quantity, type and size of fastener must be installed in the correct holes on the connector to achieve published loads. Other factors such as fastener material and coating are also important. Incorrect fastener selection or installation can compromise connector performance and could lead to failure. In some cases it is desirable to install Simpson...

 Open the catalog to page 11
High Wind-Resistant Construction-12

High Wind-Resistant Construction SDS Screws The Simpson Strong-Tie ® Strong-Drive ® screw (SDS) is a 1⁄4" diameter structural wood screw ideal for various connector installations as well as wood-to-wood applications. It installs with no predrilling and has been extensively tested in various applications. The new SDS is improved with a patented new easy-driving 4CUT ™ tip and a corrosion resistant doublebarrier coating. These products are available with additional corrosion protection. Identification on all SDS screw heads These products are also available in stainless steel for premium corrosion...

 Open the catalog to page 12

Archived catalogs

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.