Page 23 of Wood Construction Connectors 2006 Catalog by Simpson Strong-Tie

24 Concrete Connectors LMA/MASB/MAS/MAB/MA Mudsill Anchors 1.Loads have been increased for short-term loading. 2.For uplift loads, provide attachment from mudsill to buildings structural components to prevent cross-grain bending. 3.MAS installed with 1 leg attached to stud has loads of 435 lbs (uplift), 700 lbs (parallel to plate) and 240 lbs. (perpendicular to plate). 4.MASB installed with 1 leg attached to stud has load of 960 lbs (parallel to plate) and 360 lbs (perpendicular to plate). 5.MA installed attached to the stud has a perpendicular load of 670 lbs. Parallel loads as listed. For reduced uplift loads, contact Simpson. 6.LMA installed attached to the stud has no load reduction for parallel and perpendicular loads. For reduced uplift contact Simpson. 7. NAILS: 10dx1 0.148" dia.x 1 long. See page 16-17 for other nail sizes and information. LMA4 Typical LMA4 and LMA6 Installation Model No. Sill Size Fasteners Allowable Loads 1 (133) Allowable Loads 1 (160) Sides Total Top Uplift 2 Parallel to Plate (F1) Perp to Plate (F2) Parallel to Plate (F1) Perp to Plate (F2) Uplift 2 MAS 2x4,6 3x4,6 2-10dx1 4-10dx1 1005 1110 720 480 1005 815 575 4-10dx1 2-10dx1 955 720 465 955 835 465 1, 28, 121 170 33, 62, 122 MASB 2x4,6,8 2-10dx1 6-10dx1 130 930 675 675 730 825 675 675 825 825 410 520 520 650 650 520 520 650 650 130 930 410 MA4 2x4 2-10dx1 2-10dx1 830 480 430 830 575 430 3x4 2x4 3x4 4-10dx1 2-10dx1 915 905 905 905 1110 905 905 905 680 430 915 680 430 MA6 2x6 2-10dx1 4-10dx1 4-10dx1 915 680 430 915 680 430 3x6 2x6 3x6 4-10dx1 4-10dx1 2-10dx1 4-10dx1 2 10dx1 - 4-10dx1 2-10dx1 4-10dx1 4-10dx1 915 680 430 915 680 430 MAB15 2x4,6 2-10dx1 4-10dx1 565 500 500 565 500 500 MAB23 2x4,6 2-10dx1 4-10dx1 565 500 500 565 500 500 LMA4 LMA6 Code Ref. 160 7, 90, 121 2, 40, 121 MA4 (MA6 similar) See page 25 for additional product illustrations. The LMA offers a higher lateral load capacity in a lighter gauge. Two sizes provide an economical replacement for diameter sill plate bolts. The MASB is designed for installation on concrete masonry units. MAS For slab or concrete stemwall construction. Fast for the finisher install before pouring concrete by nailing into form, or insert into concrete after pour. Finish up to the edge of slab. No anchor bolts to hand trowel around, no nuts or washers to lose. Fast for the framer eliminates plate drilling and mislocated anchor bolts. MAB Anchors mudsill to concrete block, poured walls or slab foundation. MATERIAL: MASB, MAS, MA 16 gauge; LMA, MAB 18 gauge FINISH: Galvanized. Some products available in Z-MAX. See Corrosion Information, page 6-7. INSTALLATION: Use all specified fasteners. See General Notes. Not for use where (a) a horizontal cold joint exists between the slab and foundation wall or footing beneath, unless provisions are made to transfer the load, or (b) anchors are installed in slabs poured over foundation walls formed of concrete block. All grout and concrete must have a minimum f' c 2000 psi. MASB First fill CMU cell with concrete grout. Place MASB into the grouted cell, and adjust into position. Attach mudsill to anchor after the concrete cures. MAB When used in monolithic slab or concrete stemwall construction, prior to installation, spread the MAB legs to accommodate mudsill. Immediately after pouring and screeding, insert into the concrete or grout. Attach the mudsill to the anchor with 10dx1 nails after the concrete cures. When installed in grouted concrete block or solid pour for a center hole installation, drill a hole through the mudsill and install straps through the hole. Wrap MAB straps around the mudsill and install 10dx1 nails. MASB and MAB tested in standard 8" CMU. Testing has shown that the MAS anchor can be used in high seismic zones in lieu of the code required bolt and washer. See T-MASSW for additional information. For MAS installations where concrete spalling has occurred, the MAS achieves full published capacity when the maximum height of spall is limited to 1 and the maximum depth is no deeper than ". Any exposed portion of the MAS must be protected against possible corrosion. CODES: See page 12 for Code Listing Key Chart. Code listed mudsill anchors may be used in place of anchor bolts. IRC 2003, R408.1.6 IBC 2003, 2308.6 Available with additional corrosion protection. Check with factory. LMA4 (LMA6 similar) MAS/MASB Installed To Rim Board Over Max. Plywood or OSB Model No. Sill Size Fasteners Sides Total Allowable Loads (133) Uplift MASB 2x4,6,8 45 170 755 F1 295 720 F2 25 260 Allowable Loads (160) Uplift 45 755 F1 295 785 F2 25 260 MAS 2x4,6 6-10dx1 8-10dx1 Code Ref. 1. Rim board shall be a minimum of 1 thick.

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