Page 29 of Wood Construction Connectors 2006 Catalog by Simpson Strong-Tie

30 Anchors ANCHOR SYSTEMS Holdown and Post Base Anchor Solutions Simpson Anchor Systems products offer several post-installed anchorage solutions for holdowns and bases. Often times these products are used when cast-in-place anchors are omitted or mislocated, or in retrofit applications. The following design values provide solutions to common applications encountered in the light frame consruction market. For a more complete solution guide refer to the Anchor Systems Specifications for Connectors catalog (T-ANCHORSPEC). For complete information on product performance, installation requirements and appropriate code listings for Anchor Systems products please refer to the 2006 Anchor Systems catalog (form C-SAS-2006) or visit www.simpsonanchors.com. Loads for some stem wall applications have changed from previous catalogs. Refer to the C-SAS-2006 or download our technical bulletin (T-STEM06) at www.strongtie.com for the latest information. Adhesive Tension and Shear Loads for Threaded Rod Anchors in Concrete Allow. lbs. Allow. lbs. Allow. lbs. Allow. lbs. 1 475 840 1,145 3 2,550 2,195 2,235 1,385 4 2,655 2,605 1,385 2 1,805 1,315 1,750 4 4,425 3,840 4,165 2,500 6 4,640 4,795 2,500 2 1,695 2,125 3,605 5 6,680 5,720 3,925 5 6,505 3,925 9 8,350 7,920 3,925 3 3,865 3,250 5,090 6 10,525 8,865 9,405 5,090 11 11,910 10,595 5,090 3 4,780 3,550 6,870 7 12,290 10,900 10,710 7,720 13 16,670 13,785 7,720 4 5,020 5,200 7,630 9 15,015 11,835 15,125 8,465 15 20,600 20,630 8,465 5 8,965 8,090 12,595 11 19,260 19,685 18,090 16,145 18 30,670 31,625 16,440 Rod Dia. in. Tension Load Based on Bond Strength f'c 2000 psi Concrete Shear Load Based on Conc. Edge Distance Load Based on Steel Strength A307 (SAE 1018) AT Drill Bit Dia. in. SET/ET Drill Bit Dia. in. Embed. Depth in. ET AT SET 1 1 1 1 1 1 1 1 Tension Allow. lbs. 2,105 15,025 23,490 3,750 5,875 8,460 11,500 Shear Allow. lbs. 5,925 7,740 12,100 1,085 1,930 3,025 4,360 1. The allowable tension and shear loads are based on a reduction factor of 4.0. 2. The allowable tension load is the lesser of the allowable load based on bond strength and the allowable load based on steel strength. 3. The allowable shear load is the lesser of the allowable load based on concrete edge distance and the allowable load based on steel strength. 4. Where permitted by Code the allowable loads may be increased by 33 percent for short-term loading due to wind or seismic forces with no further increase allowed. 5. Anchors are not permitted for use in conjunction with fire-resistive construction. Exceptions are: (1) Anchors designed to resist wind or seismic loading only, (2) For other than wind or seismic loading, special consideration is given to fire exposure conditions. 6. Anchors are not permitted to resist tension forces in overhead or wall installations unless proper consideration is given to fire-exposure and elevated temperature conditions. 7. The tabled values are for concrete edge distance of 1 x embedment and spacing of 4 x embedment. 8. See the C-SAS-2006 catalog for reduced edge distance and reduced spacing requirements, allowable load adjustment for temperature and other important information.

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