Transcription of Number: 417 - iapmoes.org
1 Number: 417 Originally Issued: 12/21/2015 Revised: 12/20/2017 Valid Through: 12/31/ 2018 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 2017 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 6 EVALUATION SUBJECT: SIMPSON STRONG-TIE MASB AND MAB CAST-IN-PLACE GROUT FILLED CONCRETE MASONRY UNIT (GFCMU) FOUNDATION ANCHOR STRAPS REPORT HOLDER: Simpson Strong-Tie Company Inc.
2 5956 West Las Positas Boulevard Pleasonton, California 94588 (800) 925-5099 CSI Division: 04 00 00 MASONRY CSI Section: 04 05 Masonry Anchors SCOPE OF EVALUATION Compliance to the following codes & regulations: 2015, 2012, 2009 and 2006 International Building Code (IBC) 2015, 2012, 2009 and 2006 International Residential Code (IRC) Evaluated in accordance with: IAPMO Uniform ES EC 002- 2014 TMS 402/ACI 530/ASCE 5 ASTM E488 ASTM D7147 Properties assessed: Structural PRODUCT USE Simpson Strong-Tie MASB and MAB foundation anchor straps described in this report are used to connect light-frame construction foundation plates (wood sill plates), having a 2-inch nominal thickness, to grout-filled concrete masonry unit (GFCMU) foundation walls. The anchor straps are cast-in-place structural connectors that are used to resist sliding forces parallel to the sill (sole) plate that result from the application of the prescribed loads in the IBC and IRC.
3 The foundation anchor straps are used to comply with the anchorage requirements in Sections , , , and of the 2015 IBC; , , , and of the 2006, 2009 and 2012 IBC. PRODUCT DESCRIPTION Product information MASB Mudsill Anchor: The MASB foundation anchor strap is formed from No. 16 gage [ inch ( mm)] galvanized ASTM A653 sheet steel. The anchor strap has one end that embeds into a GFCMU foundation and another end that extends out and above the embedment line of the concrete masonry unit. The embedded body of the anchor strap is 1 inches ( mm) wide and 4 inches (114 mm) long with a 1-inch ( mm) scoop hook at the end. The upper strap is 1 inches ( mm) wide, just over 6 inches (165 mm) long, and is die-formed into a shape that facilitates installation at the top and over the outer shell of the GFCMU. One-and-one-half inches ( mm) from the embedment line of the strap are slot holes that allow the strap to be field-bent upward for fastening to the sill plate.
4 The strap is split into two legs approximately 31/8 inches (79 mm) from the outer tip of the strap. Holes are pre-punched along the strap for the nails used to fasten the strap to the sill plate. Table 1 of this report contains the fastener schedule and allowable loads, and Figure 1 of this report illustrates product dimensions and installation graphics. MAB Mudsill Anchor: The MAB foundation anchor strap is formed from No. 18 gage [ inch ( mm)] galvanized ASTM A653 sheet steel. The anchor strap has one end with a 1-inch ( mm) scoop hook that embeds into a GFCMU foundation and another end that extends out and above the embedment line of the concrete masonry unit. The embedded body of the anchor strap is 1 inches ( mm) wide and 147/8 inches (378 mm) long for the MAB23, and 65/8 inches (168 mm) long for the MAB15. The upper strap is 5/8 inch ( mm) wide, just over 6 inches (165 mm) long and is intended to be placed through a pre-drilled -inch-diameter hole centered on the width of a sill plate.
5 At the embedment line, the strap splits into two legs that allows this portion to be field-bent and wrapped around the sill plate. Holes are pre-punched along the legs for nails used to fasten the strap to the sill plate. Table 1 of this report contains the fastener schedule and allowable loads, and Figure 1 of this report illustrates product dimensions and installation graphics. Material information Connector Steel: The foundation anchor straps described in this report are manufactured from galvanized steel complying with ASTM A653, Grade 33, with a minimum yield strength (Fy) of 33,000 psi (227 MPa) and a minimum ultimate tensile strength (Fu) of 45,000 psi (310 Number: 417 Originally Issued: 12/21/2015 Revised: 12/20/2017 Valid Through: 12/31/ 2018 Page 2 of 6 MPa), and a tensile elongation greater than 14 percent.
6 The foundation anchor straps have a minimum G90 zinc coating specification in accordance with ASTM A653. The anchors are also available with a G185 zinc coating, denoted by model numbers ending with Z. Model numbers in this report do not list the Z ending, but the information shown applies. The recommendations of the treated lumber manufacturer or Simpson Strong-Tie Company, Inc. should be sought on the minimum corrosion resistance and connection capacities of connectors used with the specific preservative- or fire-retardant-treated lumber. Wood: Wood members used with the connectors shall be either sawn lumber or, when approved by the code official, 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.
7 Nominal 2-inch-thick wood sill (sole) plates shall comply with Sections and of the IBC ( of the 2012, 2009 and 2006 IBC) or Sections and of the IRC. Preservative-treated and fire-retardant-treated wood: Fasteners used in contact with preservative-treated or fire-retardant-treated lumber shall comply with Section of the 2015 IBC ( of the 2012 and 2009 IBC) and Section of the 2015, 2012, and 2009 IRC ( of the 2006 IRC), as applicable. The treated wood manufacturer 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. Fasteners: Nails fastened into wood shall comply with ASTM F1667 as referenced in Section of the IBC. The following table provides the minimum dimensions and bending yield strength (Fyb) for the fasteners used with foundation anchor straps described in this report.
8 For SI: 1 inch = mm, 1 psi = kPa Grout Filled Concrete Masonry Units (GFCMU): The net area compressive strength of masonry, f m, at 28 days shall be a minimum 1500 psi ( MPa). The concrete masonry cell shall be fully grouted and the GFCMUs shall be constructed from the following materials: Concrete Masonry Units (CMU): Concrete masonry units shall be light-weight, medium-weight, or normal-weight conforming to ASTM C90. Grout: Grout shall comply with Section of the 2015 IBC (Section of the 2012 IBC and of the 2009 and 2006 IBC) or Section of the 2015 IRC (Section of the 2012, 2009 and 2006 IRC), as applicable. The grout shall have a minimum compressive strength, when tested in accordance with ASTM C1019, equal to its specified strength, but not less than 2,000 psi ( MPa). Mortar: Mortar shall be minimum Type N in compliance with IBC Section (Section of the 2012 IBC, Section of the 2009 and 2006 IBC) or IRC Section of the 2015 IRC ( of the 2012, 2009 and 2006 IRC), as applicable.
9 DESIGN AND INSTALLATION Design The allowable loads shown in Table 1 of this report are based on Allowable Stress Design (ASD) and include the load duration factor, CD, corresponding with the applicable loads in accordance with the NDS, where applicable. The allowable loads are shown for standard installation in the F1 (parallel to sill plate) load direction for loading conditions corresponding to Wind and Seismic Design Categories A and B. Tabulated allowable loads apply to foundation anchor straps connected to wood used under dry conditions and where sustained temperatures are 100 F ( C) or less. When foundation anchor straps are nailed to wood that will experience sustained exposure to temperature exceeding 100 F, the allowable loads based on wood connection strength shown in Table 1, if governing, shall be adjusted by the temperature factor, Ct, specified in the NDS.
10 When foundation anchor straps are nailed to sawn lumber having a moisture content greater than 19 percent (16 percent for engineered wood products), or where wet service is expected, the allowable loads shall be adjusted by the wet service factor, CM, specified in the NDS. IBC Section contains an exception that permits detached one- and two-family dwellings assigned to Seismic Design Category (SDC) A, B or C to be exempt from the FASTENER SHANK DIAMETER (inches) FASTENER LENGTH (inches) Fyb (psi) 10d x 1 Common 1 90,000 Number: 417 Originally Issued: 12/21/2015 Revised: 12/20/2017 Valid Through: 12/31/ 2018 Page 3 of 6 seismic design provisions of IBC Section 1613. When this is the case, as determined by the code official, the allowable wind (or SDC A and B) loads assigned to the anchor straps in Table 1 may be used.