Number: 130 - iapmoes.org

1 number : 130 Originally Issued: 12/15/2008 Revised: 01/30/2018 Valid Through: 01/31/2019 The product described in this Uniform Evaluation Service (UES) Report has been evaluated as an alternative material, design or method of construction in order to satisfy and comply with the intent of the provision of the code, as noted in this report, and for at least equivalence to that prescribed in the code in quality, strength, effectiveness, fire resistance, durability and safely, as applicable, in accordance with IBC Section This document shall only be reproduced in its entirety. Copyright 2018 by International Association of Plumbing and Mechanical Officials. All rights reserved. Printed in the United States. Ph: 1-877-4 IESRPT Fax: web: 4755 East Philadelphia Street, Ontario, California 91761-2816 USA Page 1 of 9 EVALUATION SUBJECT: SIMPSON STRONG-TIE NAIL HOLD-DOWNS (TENSION TIES) REPORT HOLDER: Simpson S trong-Tie C ompany I nc.

2 5956 West L as Positas Boulevard Pleasanton, California 94588 (800) 925-5099 CSI Division: 06 WOOD, PLASTICS AND COMPOSITES CSI Section: 06 05 23 Wood, Plastic, and Composite Fastenings SCOPE OF EVALUATION Compliance to the following codes & regulations: 2015 International Building Code (IBC) 2015 International Residential Code (IRC) 2012 International Building Code (IBC) 2012 International Residential Code (IRC) 2009 International Building Code (IBC) 2009 International Residential Code (IRC) 2006 International Building Code (IBC) 2006 International Residential Code (IRC) Evaluated in accordance with: ICC-ES AC155, Approved May 2015 Properties assessed: Structural PRODUCT USE Simpson Strong-Tie structural nail hold-down connectors (tension ties)

3 Are used as wood framing anchorage, such as to connect wood posts to concrete foundations or to connect an upper story wood post to a lower-story supporting wood post, in accordance with 2015, 2012 and 2009 IBC Sections , , , or 2006 IBC Sections , , , , and and AWC SDPWS 2015 or AF&PA SDPWS-2008 or -2005, Special Design Provisions for Wind and Seismic Sections and , and as anchorage of concrete and masonry walls to structural wood elements to provide lateral support for the walls as required by IBC Section When regulated under the IRC, the hold-down connectors may also be used when an engineered design is submitted in accordance with IRC Section Hold-down connectors may be used for anchoring concrete and masonry walls to structural wood elements and provide lateral support for the walls in accordance with 2015, 2012, and 2009 IRC Sections and or 2006 IRC Sections and The DTT1 Hold-Down may be used to satisfy the deck lateral load connection requirement for a 750 pound (3336 N) hold-down tension device set forth in 2015 IRC Section PRODUCT DESCRIPTION Product information LTT Nail Hold-downs.

4 LTT Light Tension Ties are nailed hold-downs consisting of a steel strap component with 90 degree angle bend at the end and a base plate component installed in the bend, which eliminates the need for a washer to transfer load. These hold-downs have pre-punched holes for installation of fasteners used to connect the hold-down to the wood member. Bodies of the LTT19, LTT20B and LTTI31 are formed from , and gage galvanized steel respectively. The base plate component for LTT s is No. 3 gage galvanized steel. Figure 1 and Table 1 of this report provide product dimensions, required fasteners and ASD allowable loads. HTT Nail Hold-downs: HTT Heavy Tension Ties are single-piece formed nail hold-downs consisting of a steel strap with a four-ply formed seat element for an anchor bolt.

5 The straight-strap portion has pre-punched holes for installation of fasteners used to connect the hold-down to the wood member. HTT is die-formed from No. 11 gage galvanized steel. Bearing plate BP5/8-2 is fabricated from 3/16 inch thickness steel and may be installed with HTT5 as a load transfer washer for additional capacity. Figure 2 and Table 1 of this report provide product dimensions, required fasteners and ASD allowable loads. DTT1 Nail Hold-down: The DTT1 hold-down consists of a single-piece formed structural steel component with pre-punched holes for installation of fasteners used to connect the hold-down to the wood member. The DTT1 is formed from No.

6 14 gage galvanized steel. number : 130 Originally Issued: 12/15/2008 Revised: 01/30/2018 Valid Through: 01/31/2019 Page 2 of 9 The DTT1 may be used to anchor to the supporting structure using a 3/8-inch ( mm) diameter machine bolt, anchor bolt, lag screw, or a ( mm) diameter Strong-Drive SDWH TIMBER-HEX HDG screw. A 3/8-inch ( mm) standard cut washer is required when using a machine bolt, anchor bolt or lag screw. SDWH screws are manufactured with an integral washer and do not require a washer. One steel, plain (flat), standard plate (W) washer conforming to ASTM F844 and ASME , Type A, with a 7/16-inch ( mm) inner diameter, and a 1-inch ( mm) outer diameter shall be installed between the nut and the seat of the DTT1 hold-down where required.

7 The standard plate washer dimension tolerances shall be in accordance with ASTM Figure 3 and Table 2 of this report contain product dimensions, required fasteners, and allowable loads. Material information Steel: LTT and HTT nail hold-downs described in this report are manufactured from ASTM A653 SS Grade 33 galvanized steel with a minimum yield strength (Fy) of 33,000 psi (227 MPa) and a minimum ultimate tensile strength (Fu) of 45,000 psi (310 MPa). Load transfer base plates of the LTT series and bearing plate BP5/8-2 are fabricated from ASTM A1011 SS Grade 33 steel having a minimum yield strength of 33,000 psi (227 MPa) and a minimum ultimate strength of 52,000 psi (359 MPa). Base metal thicknesses for the tension ties in this report are as follows: For SI: 1 inch = mm Hold-downs have a minimum G90 zinc coating specification in accordance with ASTM A653.

8 Some models may also be available with either a G185 zinc coating (denoted by model numbers ending in the letter Z) or with a batch hot-dipped galvanized coating with a minimum specified coating weight of ounces of zinc per square foot of surface area (600 g/m2) total for both sides in accordance with ASTM A123 (denoted by model numbers ending with the letters HDG). Model numbers in this report do not list the Z or HDG ending but the information shown applies. Lumber treater or holder of this report (Simpson Strong-Tie) shall be contacted for recommendations on minimum corrosion resistance of steel connectors in contact with the specific proprietary preservative-treated or fire-retardant-treated lumber.

9 Wood: Wood members connected to hold-downs shall be either sawn lumber or engineered lumber. Sawn lumber shall have a minimum specific gravity of and a maximum moisture content of 19 percent. Engineered lumber shall have a minimum equivalent specific gravity of and a maximum moisture content of 16 percent. Minimum thickness (depth) of the wood members in the direction of the fastener penetration are shown in Table 1 of this report and the required minimum width of the wood members is 3 inches (89 mm), except as noted. Fasteners Nails: Common nails used with connectors in this report shall comply with ASTM F1667 and have the following minimum fastener dimensions and bending yield strengths (Fyb): For SI: 1 inch = mm, 1 psi = kPa Bolts: Machine bolts shall comply with ASME Standard and with ASTM A307.

10 Minimum bending yield strength (Fyb) of the bolt shall be 45,000 psi (310 MPa). Threaded Anchor Rods: As a minimum, threaded steel anchor rods shall comply with ASTM F1554 Grade 36. Preservative-treated and fire-retardant-treated wood: Fasteners used in contact with preservative-treated or fire-retardant-treated lumber shall comply with 2015 IBC Section , 2012, 2009, and 2006 IBC Section , 2015, 2012, and 2009 IRC Section , or 2006 IRC Section as applicable. The lumber treater or report holder shall be contacted for recommendations on minimum corrosion resistance and connection capacities of fasteners used with the specific proprietary preservative-treated or fire-retardant-treated lumber.